Shooting Seriously With the iPhone in DNG?

Custom motor cycle seat construction

 

Here’s a quick question for you. Considering we’re spoilt for choice when it comes to amazing cameras and uber lenses that are able to render the hair follicles and yet unborn zits on supermodels at 50 paces why would you even think about using a mobile phone for anything other than a casual snap of that coffee and cake you had for morning tea.

Serious photos with an iPhone, are you serious, that just sounds totally contradictory!

Well if you disregard the differences with Depth of Field and the iPhones’ wide angle lens perspective you soon realize that when shooting iPhone DNG the dynamic range, sharpness and color are not too bad at all for many needs.

And here’s the thing, not all serious photos are taken by serious people with serious gear. These days lots of people who are not photographers are given orders from on high…”go and get me some pics of that event, make it snappy, and when ya done get it posted to our Instagram account…….. oh, and I want it on Facebook before you leave the office tonight or you’re fired”

Fact is, and I know this will hurt the ears, feelings, and egos of many of the sensitive photographic souls reading this.  I get lots, and I mean “lots” of people who turn up in my workshops on Lightroom, Photoshop, Photo Composition, iPhoneography etc who’ve been made “Chief Executive of Multi-Media, Instagram and Facebook, Resident Communications Dynamo, iPhone Wielding Guru” for their business or organization.

 

Storage area for upholstery materials.
Whatever the material needed for your seat, Mick probably has a roll of it somewhere.

Often these folks don’t actually edit the pics, others further down or up the stream might do that, but sometimes they’re expected to also be the resident “Photoshop genius”, with all the impossible expectations that infers.

These people are not actually photographers, heck they never intended to be photographers but that’s what they’re now expected to do, and damn it, those pics better be good!

So here we are 2017, the iPhone has DNG and all the extra goodness that it infers upon one’s image options and we have an increasing number of non-photographers and indeed even some professional photographers who now use the tool for serious work.

When I was planning my new Ultimate iPhoneography series of eBooks it soon became obvious that one of those books should look at what photographers and non-photographers with serious needs could do with their iPhones.  There’s definitely a strong demand for some wholesome but easily digestible information on how you might actually get the job done and importantly how to avoid the myriad of potential pitfalls.

Well that particular book’s still a way off, I’ve six planned for the whole series, the first book “Ultimate iPhone DNG” is already up on the iBooks store and the others are all well into the production phase but I thought it could be fun to show one of the sets of pics I’ve created in the preparation phase for upcoming “Ultimate Professional iPhoneography” book.

Lets just come back to the question of “why shoot serious (work) stuff with the iPhone”. I reckon there are several solid reasons.

The iPhone may be the only camera you or your workplace owns, maybe you or the workplace have decided that using a DSLR is just too complex.  (I wouldn’t necessarily agree with that but I well understand the way many feel about this situation).

An obvious one is the need for rapid turnaround and the benefits of instant sharing and no doubt for a great many such uses the quality deficits are less relevant.  You can easily crop the images severely and still have enough pixels for social media needs and honestly, regardless of how much traditional photographers protest, the fact remains only a very small proportion of images shot for promotional purposes find their way into print at anything larger than say 5 by 7 inches. Now even allowing for reproduction at 300 PPI, that 5 by 7-inch print only equates to around 3 mega pixels.

But I think you can make a case for iPhone shooting that transcends the traditional convenience and resolution sufficiency arguments, a case where sometimes the iPhone might technically be a great choice. (ASSUMING we are shooting in DNG)

Yep I know, right about now there are virtual knives and spears being thrust forth into computer monitors in the hope of impaling me or at least banishing my presence for the outer reaches of the inter-web, but please humor me, I’m just a country lad from a place that no-one much knows about.

 

Industrial sewing machine sewing embossed leather.
The industrial sewing machine had no issues at all in sewing heavy materials.

So what might those technical benefits of the iPhone be?

Well, Depth of Field is enormous, it’s pretty easy to get everything in focus and sometimes that’s just what you need. This fact might seem a little surprising to many who have come to the photography table since the advent of digital but once upon a time getting deep depth of field was a challenge and something professional photographers went to all sorts of lengths and contortions to achieve.

Related to the depth of field rendering, the iPhone can easily get really close up photos nicely sharp and yet still have quite nice separation between the subject and background elements.

Going further the lens is wide-angle, but it’s actually sharp right out to the corners, which is not a given with many regular wide angle lenses on DSLRs and Mirrorless cams.

Better yet, the lens/sensor size combination enables you to have some interesting perspective renderings that are impossible with larger sensor sizes without image stacking.

Now yes the iPhone is potentially a noisy little blighter but actually, the luminance noise, when shot in the DNG format at slightly elevated ISOs, is rather filmic and has a certain artistic appeal that actually works nicely for some types of images and especially monochrome.

Another aspect that few people will have considered is that it’s relatively easy to get total deep focus rendering from very near to distant objects by using focus shift techniques with only 2 or 3 frames.

So that’s not a bad list and for the working photographer and a tool only needs to excel in one specific aspect to make it viable for some selected shooting needs, no-one’s claiming the iPhone is the perfect portrait device, the ideal copy camera, the most powerful landscape tool, the last word or even the first word in the world of sport photography shooting, but then it doesn’t need to be either.

On the other hand, let’s face it, most DSLRs and Mirrorless cameras are still pretty hopeless when it comes to social media duties and many are very difficult to use for close-up work unless you have lots of other macro bits to go with them.

So onto the pics, our subject is Mick McCarthy from MJM Vehicle Trimming in my hometown of Goulburn NSW.  Mick is well-known for making the best custom motorcycle seats around for people who really want to be able to plant their butts on something more comfortable than the average plastic board with inverted nails that seems to pass for a motorcycle seat these days.  He still does some regular motor trimming for folks with special cars but basically motorbike seats are his gig, he also happens to be my neighbor and a friend.

I’ve gotta say it amazes me that all of the bike manufactures can produce machines which are brilliant in every way, yet they still can’t make a seat that soothes the average butt for more than 20 kilometers. Maybe we’re not actually meant to ride modern bikes, maybe we’re supposed to take them to the coffee shop, park them and then proceed to talk all kinds of BS about how great my bike is compared to your bike.  Anyhow Mick does great seats, the one he did for me totally changed the way I felt about my bike, that’s for sure.

Mick is a bit of “bike n car nut” and has a nice little collection of his own, and he really is a terrific bloke who loves to shoot the breeze on all those mechanical things that we fellas get excited about.

I wanted to create a set of images that gave a good account of the man and his craft, something that his family might treasure, but also something that told the story of MJM.

 

sewing leather material on industrial sewing machine.
Mick hard at work sewing a motorbike seat.

I think that shooting DNG files on the iPhone worked treat. I was able to get a tight close-up shot, super deep depth of field renderings (which I then dialed back to taste), a lovely filmic look and with appropriate editing some terrific shallow DOF stuff all with more than passable quality for most regular usages.  And I have to say I love the fact you can get into tight confines with the iPhone, it really is easy peasy with the iPhone on a selfie stick.

Lots of people get really hung up on the issue of noise but the honestly the noise when you shoot in iPhone DNG isn’t too bad and importantly it can be fine-tuned and even used creatively.  The key is not to shoot at high ISOs and before someone starts furiously typing a “full and well-expressed rebuttal on the folly of only having a low ISO option” think about it for a moment or two.  The iPhone lens is fixed at f2.2 or f1.8 and you don’t need to stop down to say f5.6 or 8 to get some clarity or depth of field, meaning you don’t need high ISOs all that often, provided of course you have the camera properly supported.  Some of the shots I took in his shed were at 1/5 sec or so but it all worked out fine.

And if the light is MIA and you need to bring in some artificial light via LEDs or tungsten then you don’t need near as much of it to lift the brightness levels to something workable when using f2.2 at say 100 ISO.  If you needed to use f5.6 – 8 @100 ISO with a DSLR you’d need about 8 to 16 times as much lighting power,  meaning either more lights or more expensive lights or a non-continuous light source, in other words, flash.

Yes, of course you could shoot your DSLR at a longer shutter speed, but then you’d risk subject movement or you could raise the ISO to 800 or 1600 ISO but then the difference between the quality of the two devices (when shooting in iPhone DNG) would not be near as wide as you might expect.  In any case, this article is aimed at those who are shooting with the iPhone and really don’t want to use a DSLR.

And just so you know, yep of course these shots have been lit, but in keeping with the concept of making it practical for those who need to use the iPhone for work stuff I kept it simple, just a couple of LED work lights on a pair of cheap stands with a couple of bits of foam core board.  All up the lighting stands and other bits represent about a $200.00 investment, which most businesses would pay for out of petty change.

Of course, if you want to compare JPEG outputs then all bets are off, those iPhone JPEGs are variable at best and the attainable quality level is nothing like that offered by the DNGs, so please don’t send me any arguments based on the JPEGs, I’d just be nodding my head in full agreement.

The big advantage of the DNGs over JPEGs is the pushability of the files, you can dodge and burn, sharpen and blur, crop and blow up in ways that the brittle JPEGs never allow.

 

cutting vinyl with scissors for motor trimming needs
Freehand cutting vinyl for a motorbike seat.

I find the idea of shooting with the iPhone then working out the Depth of Field rendering in post quite appealing, I’d normally choose to use a different camera if I want the shallow DOF look, but the approach can work pretty well.

Sure it takes a bit of work but then with practice, you get pretty quick at it, more importantly, it allows me to create DOF renderings that would be difficult or impossible if shot with regular DSLRs or Mirrorless cameras. In some ways, and I know this will prove a challenging statement, but sorting the DOF out in post is close in terms of flexibility to what you could do by using a view camera with tilts, shifts, rise and fall, except without all the chemical and scanning stuff arounds.  Yes, Yes I know it will not be as detailed etc, but we are not producing full-page spreads and billboards, basically most stuff goes straight to the web these days and honestly this approach looks fine for social media stuff and I reckon looks quite a bit better than the effects you get using the iPhone 7S plus portrait mode.

Going further on the Depth of Field simulation option, you can create looks that would not be possible with regular lenses, it’s easy for example to simulate the look of lens with significant field curvature or tilted focal planes such as with a tilt/shift lens, bokeh can be whatever you want and importantly you can create sharpness fall off characteristics that would be impossible with almost any regular camera. Ultimately if you start with an image that has overall sharpness, in other words, deep depth of field, you can blur it to anything your heart desires (given enough time/skill), on the other hand you can’t start with a shallow DOF image and then find clarity that was not recorded in the first place.

Sure this is a different way of working and it won’t suit everyone but like most techniques in photography, it’s just another option that might suit some specific needs. I imagine that those photographers who are fixed on the idea of photography being “what comes out of the camera” and with a strong belief that “editing is the devils work” will choke on the DOF simulation concept, but…. there are a great many of us who just accept and embrace editing as an integral part of the whole process.

I chose to go with a sepia monochrome look for this shoot but the colour versions are fine despite the basic light sources used, I’ve also added a little noise to give a more filmic feel.

iPhone DNGs can give quite different looks depending on how they are extracted and in this case, I used Iridient Developer with the noise reduction turned off. As you might expect that makes the files a little noisier but means they also look more film-like and more importantly they work really nicely with DOF simulation processes in Photoshop when you’re including added noise in the blurring process.

You might think, well sure the pics look OK on the WEB but surely the prints would be poor. Not so, 11 by 14s prints look rather nice and long ago worked out that if you make a good 11 by 14 you can pretty much print a file any size you want when you take into account the increased viewing distance.

I’ve put together a nice layout for Mick that he can frame and put up on his wall and despite the 36 by 34-inch size, the resolution is absolutely perfect.

Anyhow thanks for reading and I hope it has provided a little inspiration, Oh and if you want to know how to really shoot and deal with those iPhone DNGs check out my book “Ultimate iPhone DNG” on the iBooks store and you can also have a look at some other pics on my dedicated iPhoneography instagram site.

Just look for..   zerooneimaging or iphoneraw01 on instagram

Buy Ultimate iPhone DNG from the iBooks Store:

https://itunes.apple.com/us/book/ultimate-iphone-dng/id1274334884?ls=1&mt=11

 

Custom motor cycle seat construction
Measuring the seat for a Moto Guzzi Magni

 

Matching automotive seat materials.
Checking the match for new seat covers for a very collectible Ford Falcon 351 GT.

 

Motor trimming fasteners
Mick has pretty much any trim fastener you could need in his drawers, it sometimes takes a little searching though.

 

Keeping the dust of a motorcycle.
Michael’s’ low K MV often needs a little dusting time.

 

MV Augusta in Motor Trimming Shop
MV takes pride of place in the customer service area.

 

Restoring E type Jag seats; close up of staple gun in use.
Working on restoring the seats for an E type Jag.

 

Boss in Front of his motor trimming shop
Mick, proud owner of MJM in front of his kingdom.

 

 

 

 

 

 

Ultimate iPhone DNG….eBook For iPhone Shooters

iPhone DNG, multi frame capture, steam engine pimp in action under low light.

Seems like everyone these days agrees the iPhone is a great camera, true enough, but it can be so much better.

Lots of people simply want to use their iPhone for everything, family portraits, events, holiday pics and more.  Whilst there are still many reasons for photographers to use a regular camera a well-aimed iPhone can get you tantalizingly close to meeting all those needs in a convenient pocketable package.

Shooting with the RAW (DNG) format can turn out iPhone into compact imaging dynamo, all those positives of iPhone shooting remain, the “in your pocket” convenience, speed, ease of use, the great screen, powerful sharing options and more but most of the pesky downsides simply disappear and those deficits that remain are significantly diminished.

Don’t get me wrong, regular iPhone pics are pretty good for snaps and general stuff but the softish images, limited dynamic range, noise, watercolour like rendering and often unpredictable results take the shine off the camera for serious shooters.  You can be sure that with properly captured and processed DNGs those shortcomings will no longer apply.

Of course just shooting in DNG will help, but your images will be better still when you actually know a few extra tricks to use for the capture process and editing. Frankly, I think you’ll be amazed at how good your DNGs can be when you apply an optimised workflow, and great news, it’s all pretty easy to do.

I’ve put together an easy to follow, plain English, jargon-free eBook that will teach you everything you need to know to become an iPhone DNG expert, and I’m confident in saying this just might be the best $14.99 you’ll ever spend on your iPhoneography, maybe even on photography full stop.

Along the way, you’ll learn stuff about image capture and processing that would take months of combing the internet to find and quite honestly you’d probably still fail to uncover the information gems revealed in this eBook.

Amazingly much of what you’ll learn applies to the shooting and editing with any camera, so even if you only occasionally use the iPhone the $14.99 will still be money very well spent.

Ultimate iPhone DNG is 380 pages and 23 Chapters of iPad optimised goodness, take it with you wherever you and your “i” devices go and of course you could pop it onto your Mac or Windows computer as well.

iPhone DNG capture wind blown tree coromandel coast in new zealand converted to monochrome
Monochrome image prove very challenging for the iPhone standard JPEGs, normally the highlights get hopelessly clipped, the shadows blocked up and the textural detail goes MIA and the noise looks terrible, not a problem at all with a well-handled DNG.

So what’s covered?

Three Ways to DNG
The Best Shooting apps
Optimising Capture
Perfect DNG editing
Shooting and Processing Optimal Monochromes
Special Shooting Techniques
Setting up and using Lightroom Mobile
Setting up and Using ProCamera

……and so much more, I’ve even included a comprehensive dictionary of iPhoneography terms

Of course, there are lots of great sample pics of the sorts of real-world things the average person would be shooting, portraits of family, holiday snaps, landscapes, close-ups, and more.  In other words realistic images that don’t require a studio, glamorous paid models and an array of lights, just the sort of photos you could expect to achieve if you put into practice the concepts and methods covered in the book.

So for the price of a coffee and a light snack you can change your iPhone shooting forever, I absolutely promise your pics will be better in every possible technical way.
And just to give you advance notice this is only the first in a series of 6 “Ultimate iPhoneography” eBooks, the next one is already close to completion and covers the fine art of iPhoneography composition!

 

Buy it on the iBooks Store, click on this link:

https://itunes.apple.com/us/book/ultimate-iphone-dng/id1274334884?ls=1&mt=11

 


 

 

 

Depth of Field Simulation for iPhone Pics

simulated depth of field with iPhone photo on crane winding drum.

Why would you simulate depth of field on iPhone photos, after all, we all love a nice bit of fast glass, the bragging rights delivered by nice 85mm f1.4 are just brilliant when you have leg up on the brass and coldie in hand at the local watering hole. Of course, we all know that if we want that “dreamy creamy bokeh bonanza” fast glass is the way to go……or is it?

There are a few downsides to all that bokeh driven madness, let’s count them.

First, you actually need to have the camera and mentioned heavy bokehlicious lens with you at the time. Funnily enough, some of us are just plain slack and we baulk at the idea of carrying such a bulky rig with us everywhere we go.

You know how it is, juggling the dog lead, doggy treats and carrying uber DOF master rig all at the same time, whilst trying to stop your furry face licker from all manner of canine misadventures.

And then there’s the lack of camera parking room on your favourite coffee table at your favourite cafe, oh and not to mention your aching neck, shoulders and the bruising on your “one pack” from that DOF meister rig bouncing around like Bjork at a Rave as you clumsily shuffle around.

Yep, the best camera really is the one you have with you, which for me and a significant proportion of other shooters is more often than not, the iPhone.  It doesn’t mean I want to sacrifice all that Bokeh shallow DOF goodness on the altar of convenience though, hell no, I want it all.

But dear reader, and I really must say this in hushed tones, (just hold on a minute, whilst I put on my chain mail, fireproof suit and motorbike helmet, dum de dum, ah there you go, all done),…….. sometimes you can get a better result by actually doing the DOF sim shuffle.

Ouch, who threw that, I saw you!

Tawny Frogmouth in gumtree taken with iPhone and depth of field simulated in post
Simulated Depth of field on this close up iPhone shot of Tawny, our resident Frogmouth, he lives part time in our backyard, he’s very tame and quite happy to be shot close-up with the iPhone.  The DOFsimm’d look is nice and makes him stand out rather well, especially considering that Frogmouths are normally the masters of disguise.

See it’s like this, just maybe you actually don’t want the 4 eyelashes, 3 nose hairs and one bloated magenta zit on the right cheek look, like dude, maybe you want something a little bit more sophisticated such as, oh I don’t know, a whole face in focus and a gently diminishing background blur that’s just a tad softer on the corners and super dooper soft on the most distant objects. Yeah I know, I’m hard to get along with.

Maybe you actually want those “in focus bits” to be truly ruly sharp, not just sort of glowy sharp.

Could even be you want a DOF look that’s not actually technically possible using regular aperture adjustments on a regular camera.

And what about bokeh rendering….well what about it….well maybe you want something that your DOF monster 300mm f0.95 won’t actually deliver. (Sorry, I was getting a bit silly there, but you know what I mean)

So shoot me, (whoops, just ducked in time) but you know what, you can always start with a sharp image and get down and boogie, um I mean bokeh, but you cannot start out with a creamy dreamy bokeh bonanza and find details that went MIA at shooting time.

Now sure DOF simming’s not for everyone, some folk just want to press the shutter and go home to a nice warm hot cocoa and lie down with a good book, some folk think their camera is a machine gun and you need to expend 1000 rounds to get coverage for every possible shot, well DOF simming will never float these folks boats, I get that.

Now just so you know, yep I’ve also got full frame, half frame, quarter frame and bloody big film frame and more lenses “than my wife knows about”, so it’s not like I don’t have the so-called sensible DOF choices if I want to use them.

Shooting for me…well, I’m pretty selective when it comes to taking shots, I prefer to take a few selective shots and then nicely edit them to suit my tastes.  I long ago came to the conclusion more is often, well, just more and less is a lot less work. But when you do more with less well that’s bess….I mean best.

So putting aside the time to have a blurry old-time in Photoshop on a few pics is no hardship, mind you I doubt I’ll ever do it this way for a big commercial shoot…..well not unless someone really wants to pay me to do so, then all bets are off. Money talks you know!

ducati bevel drive single iPhone simulated depth of field
A rather lovely Ducati Bevel Drive motor, taken at the Ducati Museum in Bologna, Italy, the subtle depth of field effect works a charm and accentuated the simple beauty of the bevel housing.

This is not a “how to” article and one day when I get a rush of blood to the cranium and be tempted to make a little YouTube clip on my methods and furnish a few special secret sauce killer tips.  But…First I’d need to find some hot bikini-clad ladies (apparently compulsory in almost all “tube” photography lesson clips), or get some cats (also popular and near-compulsory), learn some banter from the youtube bros and drop a few pounds – but generally I can drop a few tips here that might help you “would be dofmeisters”.

(Note since I wrote this I have embraced the world of “Tube”, but without the Models and cats…just me)

I don’t get all carried away with masks, depth maps etc, I just use multiple layers blurred to different degrees and brush it all in freehand.  No sir there are none of your fancy schmancy pants pen tools selections and all that crafty caper. I’ve got reasonably handy with brush tools over the years and whilst I’m happy to spend quality time in Photoshop I also want to get the job done efficiently and hopefully reasonably quickly.

I also make use of several types of sharpening methods, high radius, low radius, ultra-low radius, blurb-blend sharpening, high-pass filter and add noise filters, we’re all good friends you know and we play nicely with one another.

simulated depth of field,model steam pump, wellington museum new zealand.
Subtle depth of field simulation applied to Mechanical Exhibit in Wellington Museum, taken with dim available light using Cortex Cam on the iPhone 6S Plus.

The real secret sauce is actually in the shooting, first, regardless of what I’m shooting I’m very precise with my techniques but importantly shooting in DNG is super important.

If I think the image is going to be DOF simm’d I try to shoot it so there’s at least some separation between the subject and the background and I especially try to keep the backgrounds unobtrusive and not too busy. Honestly the last bit can be hard to do and sometimes a busy background when DOF simm’d can have a charm all of its own.

I also look for the right light, in other words, light that has some direction but not too harsh. I’m not afraid to ask myself or the subject to move to get the right light, assuming, of course, the subject is human, canine or mobile in some way.  I wouldn’t bother asking cats to move of course, cause you know exactly what cats are like….which is probably why I haven’t made any YouTube clips yet.  (with cats in them)

This is a little hard to explain but trust me, depth of field rendering and apparent separation has a hell of lot more to do with getting maximum image sharpness on the planes that should be …well sharp than just adding big blur.  Blur will look a lot more blurry if the sharp bits are actually really sharp. DNGs da bomb because with the right methods the images are just sooooo much more detailed in the first place, that and the fact that I can precisely control the noise signature with DNGs.

Serious JPEG iPhone shooters will be very familiar with the terms….mushy, soft, plastic, watercolour like, flat, smudged, you get the idea. iPhone DNG is nothing like this!

Last and definitely not least I have some special capture methods that really make those DNGs sing, no clues I’m afraid but you can always buy my book if you want the inside running on that aspect.

Buy Ultimate iPhone DNG on the iBooks store: 

https://itunes.apple.com/us/book/ultimate-iphone-dng/id1274334884?ls=1&mt=11

 


 

How Good Can iPhone DNG Be?

It’s been twelve months since DNG was announced for the iPhone and around 11 months since it officially became available, still, the great majority of iPhone shooters haven’t tried DNG and indeed most casual shooters are probably not even aware that the DNG option exists.

As far as I’m concerned DNG for the iPhone is a game changer, in one swift movement it solves most of the core deficits of iPhone image quality, it may not be for everyone but there’s no doubt the difference in quality is truly significant. I’ve found in the past with DSLRs and Mirrorless cameras that the whilst the step up to DNG/RAW certainly made for better image quality I wouldn’t usually describe it as a quantum leap, that’s not the case for iPhone images, the difference is enormous.

So this begs two questions from photographers wondering about the ins and outs of shooting in DNG on the iPhone. What specific image aspects does DNG improve and how good can those DNG files be.

I’ll deal with the first briefly. Shooting in DNG and properly processing the files will provide the following changes.

 

Significantly better highlight and near white tonal rendering.

Far better textural information, your pics won’t look like they’ve been wrapped in cling wrap anymore, especially when the light drops off or the ISO gets ramped up.

Far fewer issues with posterization and banding.

Much improved shadow recoverability.

The ability to deal with noise reduction far more sensibly.

Improved skin tones.

Potentially better color.

Vastly better editing flexibility.

Cropping works better.…… and I could go on and on, but I won’t….

 

Trust me on this, the results are better in pretty much any way you might reasonably expect, but of course, you do need to know a little bit about editing and it sure helps if you pay more attention in the shooting phase as well.

So to the second question, how good can it really be, well I going to show you some samples but I’ll start by saying this.

Not one person I’ve shown comparative prints or full resolution on-screen images too has failed to be convinced by the results, almost everyone has said they find it difficult to reconcile that the images were even shot on an iPhone.

Before I proceed I must make a disclaimer and mention two things, one I have written a whole 400 page eBook on this subject, it’s the first in the series of six I’m producing on shooting seriously with your iPhone….so obviously I’d love you to buy a copy from the iBooks store if you’re interested.

Second, I have three core ways of shooting DNGs on the iPhone, I’m pretty confident that most folks are only aware of the regular method, so my results will probably be better technically than what the casual shooter will liberate, but the question we are asking here is “just how good can iPhone DNG be” not how good is it with quick and dirty techniques.

The first two samples are captured using the ultimate method, the last one via my middle-level method.

None of the core examples are from stacked images or stitches, just in case you are wondering, they’re all single frame captures.

It’s probably worth noting that the tool you use to extract the file has an enormous influence over the results and it’s possible to get all sorts of renderings by playing with various convertor apps and methods, both on the iPhone and your desktop computer.

But at the moment let’s just stick to the straight question, how good a single frame DNG captured and edited by optimal processes can be?  The test DNGs have been created using TLC capture (nope I,m not explaining that, you can buy the book if you want to know more) and processed using Iridient Developer.

So first up your honour,  I present this example,  a JPEG test capture from a set I took to compare the various capture methods (including stacked captures which are not covered in this article), it’s a scene taken from a hill near my home in bright light mid-afternoon light. It’s just the ticket for testing resolution etc.

 

Windellama Road View (JPEG)
Full-width JPEG frame, the sky has been cropped as it was incidental to the needs of the article, at this small size it looks pretty good.
Windellama View crop (JPEG)
Crop from the above JPEG capture, taken from the upper middle.

 

Just so you know all the images were all shot on a tripod and optimally exposed at the lowest ISO setting. In other words, the JPEG example is absolutely as good as it’s ever going to get with standard iPhone JPEG capture using the standard Apple camera app. You can be pretty sure that many of your iPhone pics will not be as good technically as this test JPEG due to small degrees of movement, less than optimal light and perhaps slightly compromised exposures.

Now let’s turn our attention to the optimal raw TLC-DNG capture.

 

Windellama Road View TLC
Here we have a single frame DNG -TLC capture, this is the ultimate single frame capture option, a couple of things will be obvious, the colour is more muted and film-like, and even at this small size it appears to have more fine detail and more natural level of clarity, in other words it doesn’t look “forced” in the way JPEGs do.
Windellama Road TLC crop
This crop shows where the rubber meets the road fine detail is just much better, color shows more subtlety, it looks far more analog, in fact it’s hard to believe they are taken with the same camera.

 

If all you want to do with your iPhone pics is share them to Facebook or post to Instagram then perhaps the difference between the test images may be irrelevant but let’s just examine those differences anyway.

First of all looking at the two overall images it obvious the color palette of the JPEG is far less subtle, but look closer and a couple of other color differences are evident. Take a peek at the bush to the left of center, it has tiny red berries on it, these are in real life a very bright red. In the JPEG capture you really struggle to see them at all, they sort of blend into the other colors. The same issue is evident on the Eucalyptus in the middle of the frame, it has new bright red shoots but again these are much less invisible in the JPEG capture.

Now turn your attention to the shadows, basically, in the JPEG capture they’re black, you can see it under trees, in the shadows of the leaves, basically, the tones just roll straight off into deep shadow.  It’s possible something may be recoverable with some clever editing but clipped data is clipped data and honestly, there’s very little wiggle room in those shadows unless you’re happy to accept all sorts of nasty noise.

Looking at the highlights now, two things are evident, the JPEG tends to tint the sky a bit more cyan green, but also the white clouds are not actually white, they also have a slight cyan tint. Away from the sky, everything that’s yellow in hue is pushed a little bit more saturated and lighter in tone, this also holds true for skin tones taken on the standard JPEG app set-up.

Basically, with the JPEGs there is a limited difference between the yellows and greens and the overall level of saturation is natively a little more intense, you may not realize this but greater saturation and color subtlety are actually flip sides of the same coin, you either get one or the other. Once you jack up the saturation on a JPEG you can never get that lost subtlety back by dialing it down in post..it’s a one-way street.

The DNG overall is more analog looking, it could, of course, be ramped up in saturation if desired and the shadows could be deepened but as far as editing potential goes it beats the JPEG hands down then comes back around the corner to flog it with a big stick.

Now let’s take a closer look at those crops. Well, really this is a chalk and cheese difference, in fact, if you only saw the crops you might have some difficulty believing they are the exact same device! Basically, the JPEG has zero fine textural detail, distant trees and low to mid contrast details look “watercolour like”, the grass in the near paddock is simply areas of indistinct color. At this resolution, we can also see the shadows in the DNG really do have quite a bit of color information.

Something very subtle but I find important is that the aerial perspective is quite different, the JPEG has similar color intensity across the entire crop, whereas the DNG goes obviously from more intense color on the foreground tree to far more muted colour in the distance (which incidentally is about 8 km away), this, of course, is how the scene really looks to the eye.

In summary on the test pics.  I realize some people may prefer the more intense and yellow rendering of the JPEG but in truth, the DNG can be made to look pretty similar if you really want that, the important thing is it can also be rendered very naturalistically and everything else in between.

I know that none of you stood next to me when I made these tests but I can absolutely state the DNG is far closer to the reality of the scene than the in-camera JPEG.

One question a keen shooter may have is “can the DNGs be enlarged to a higher degree for printing purposes”?  Well print quality is nearly impossible to show on a web page, but yep I’ve tried all sorts of options and the sections from that DNG test image, for example, can be printed very large indeed yet still look very nicely resolved, in fact, it’s in large prints that the DNG difference really hits a home run.

Let’s round things up by having a peek at a couple of other examples.

The next pic is a shot I took on the Mornington Peninsula in Victoria, I was at the time taking some family snaps but turned around and liked what I saw. Now even in the small downsized image you see here it’s pretty obvious that technically the shot is very sharp, with good shadow and highlight detail and nice color without being over the top. But just take a closer look at the 800 px close up crop, I didn’t crop out of the plant in the front of the scene which is where the focus was optimally set, here we’re looking more into the background and yet this is really super detailed and sharp and remember this represents a print of about a metre wide!

 

Tussock in Sand
Full Frame, the focus was set on the tussock grass, this taken in extremely contrasty light, just the sort of conditions that challenge the JPEGs when it comes to retaining both shadow and highlight details.
Tussock in Sand (crop)
Crop from the above, the file is processed in Iridient Developer on a Mac desktop, If you printed the whole image this big it would be approximately 100cm wide by my calculations!  From any sensible viewing distance, it should look excellent.

 

Something not to be overlooked is that with optimally exposed TLC-DNGs the noise reduction can be switched right off and once you do that you get not only more detail to start with but also the files now respond brilliantly to all manner of sharpening methods. This is where JPEGs are severely crippled, post sharpening usually just accentuates the deficits of the JPEG compression and the over-zealous standard iPhone noise reduction.

The example below wasn’t captured using the ultimate TLC – DNG method but rather the middle-level option, and it’s really rather nice. The wagon wheel shows excellent detail and tonality and is nicely editable, in this case, I’ve applied some sweet low radius sharpening to bring out all that fine detail.

Wagon Wheel
A wagon wheel I found at the “Goulburn Historic Waterworks” taken with iPhone 6S Plus, using the UniWb-DNG method.

 

So in the wrap-up, there is no doubt that DNGs are potentially vastly superior in any measurable way.  I’ll leave you by adding this, whilst these sample test pics represent the Ultimate single frame capture possibilities there are several multi-frame options that elevate the quality again, so just as a tease I’ve included a teensy tiny crop from 52 mp multi-frame TLC version……you’ll need to look back at the full frame pics to see just how tiny this section is.  Yes, this one can print “seriously big”.  I’ve done the maths for you it would be a print 1.5 meters wide! Obviously then you need to step back a bit from your screen or device to get a true perspective of how this would translate to the real world print, oh and those tree textures you can just see on the hill, that’s 8  to 9 km away from the camera.

 

Windellama View 52mp Crop
A tiny section from 52 Mp image stack taken using  4 frames TLC-DNG stack, printed this would be 1.5 meters wide!  A greater number of donor frames could be used to further increase quality and reduce luminance noise.

 

Want to know more, here is the link to my “Ultimate iPhone DNG” eBook on the iBooks store:

https://itunes.apple.com/us/book/ultimate-iphone-dng/id1274334884?ls=1&mt=11