Rishi Sanyal , Nov 04, 2008; 05:47 p.m.
It is well accepted now (I hope) that different RAW converters vastly differ in their interpretation of colors
coming from the same RAW file.
For example:
- Lightroom interprets reds as oranges, whereas Canon DPP keeps reds red
- Lightroom tends to render skin tones with a greenish cast, whereas Canon DPP doesn't suffer from this
problem
Those are just two examples; there are many other differences. I myself have noticed this in Canon RAW files
coming from 2 different Rebel XTi's and 2 different Canon 5D's. It's not a camera problem; it's just that Adobe
Camera RAW just doesn't know what it's doing when it comes to interpreting the colors from Canon RAW files. I've
heard similar complaints re: its handling of Nikon RAW files.
Yes, using the ACR 'Camera Calibration' *can* help; but it really doesn't give you as 'rich' or 'nice' colors as
Canon DPP. And it causes other artifacts. For example, every time I use the ACR calibrator & a Gretagmacbeth
color checker card to come up with my values for the ACR calibration sliders, invariably the results indicate
that I need to up the red saturation and move its hue 'to the left' (toward magenta). This causes magentas in the
image to become overtly magenta, gaudily so. What happens is one gets patches of fully saturated magenta, which
look unnatural. I will try and post some visual examples shortly.
The recent release of the 'beta DNG profiles' from Adobe (here:
http://labs.adobe.com/wiki/index.php/DNG_Profiles), changes all that and finally gives colors & renditions
similar to the manufacturer's software (e.g. Canon DPP).
My question is this: why don't camera manufacturer's (i.e. Canon, Nikon) license out their RAW converters, or at
least their color interpretation component, to software companies such as Adobe (for ACR), or Apple (for
Aperture), etc.? Camera manufacturer's aren't in the market for their software; in fact, photographers avoid
their software like the plague. Camera manufacturers themselves could make money by licensing out these
RAW conversion algorithms, and software developers wouldn't have to waste time trying to shoot color
charts with test models of new cameras to extrapolate the color response of these cameras for their own RAW
converters. Since time=money, this would mean that the software companies could also save money by buying the
license from the camera manufacturers.
At any rate, my bottom line is this: I don't understand why their isn't more communication between camera
manufacturers and developers of photo editing software when it comes to RAW conversion. It's almost universally
accepted that people like Canon DPP's rendition of colors in comparison to ACR (in Lightroom or Photoshop)... the
people that don't even realize there's a difference: please open a RAW file in Lightroom vs. DPP & witness the
color difference. Or, you've probably seen that when you first load up RAW files in Lightroom, the colors look
great & saturated, then within seconds as Lightroom 'reads' the files, the colors become dull & ridiculous.
That's because you're first seeing an embedded JPEG (processed by the camera, so, using the same RAW conversion
as the manufacturer software) first, which is then replaced with a preview generated by Lightroom and the ACR engine.
Anyway, just wanted to get some thoughts on this & what people think.
Cheers,
Rishi
Matt Laur 

, Nov 04, 2008; 05:53 p.m.
It's simple: some software vendors don't want to spend what <i>other</i> vendors are asking in order to license their technology. Nikon, for example, has spent a lot of money evolving their own image handling and editing software. They're going to keep evolving that software. Adobe is a competitor that would like to have all of that business for themselves. What would be Nikon's motivation for letting someone else take away more of their software business, at no charge? So, they ask a price. And Adobe doesn't feel the need to pay, because they know they've got most people locked into using their products.
Patrick Lavoie 

, Nov 04, 2008; 05:56 p.m.
i totaly understand your point.
on the other hand, i find personnaly that all the canon image are a bit too red and a bit to saturated. So i simply use and create a preset that *fix* this, and get the file where i want it..without even really using the canon profile.
I think it will be a good thing for all user that keep complaining that there DPP or Caputre is better out of the box, but for me that use Lr everyday and really know it..it will only save me a 1-2 second per image at best. Still, it will be nice to save them, as second make minute pretty fast.
So yes, i think it could be a good idea for camera developper to give there recipe to Adobe..but maybe they are affraid that Adobe release a camera that shoot like a canon or nikon : )
Rishi Sanyal , Nov 04, 2008; 06:08 p.m.
Matt, my argument did presuppose that Canon & Nikon don't, nor do they intend to, make money off of their software. My entire argument falls apart if they do.
But, do they? Canon certainly doesn't sell their software; DPP is free. So, heck, why doesn't Canon just GIVE Adobe their RAW converter? In fact, if they did this, then, since most people want to use Adobe software anyway, Canon would have an edge in digital camera sales because consumers may CHOOSE a Canon digital camera over a Nikon digital camera simply because Adobe software conversions would be better for the Canon.
Is it time for me to call up a Canon PR rep? :)
-Rishi
Rishi Sanyal , Nov 04, 2008; 06:12 p.m.
BTW, I know this is my personal opinion, but for me Lightroom's conversions are so bad that I opt to first output the RAW files as TIFFs from Canon's DPP using a contrast of (-4) and the 'faithful' setting, then import these (62MB or more each) files into LR for post-processing.
Pathetic, I know. But I know there are others out there like me (most of my friends that I've helped 'see the light' by forcing them to do their own comparisons, as well as others that discovered the color issues themselves). So I do think there's room for some improvement...
Let me reiterate, though, that the new DNG profiles from the ACR team are quite amazing. I'm just wondering why the heck they have to even waste their time, money, & resources developing them when Canon should really just give it out for free or for a nominal fee.
Michael Houghton , Nov 04, 2008; 06:31 p.m.
I have to say I think third parties licensing profiles or raw processors is a really, really bad idea.
In short, it poisons the well of competition. If every third party software provider was using Nikon's raw converter, there would be no competition to produce the best image from a Nikon raw file. Such competition has almost certainly furthered the quality we get even from Nikon's own software.
In general it has a negative effect on research. It shouldn't be that surprising that a third party could get better quality from a raw image file than the manufacturer of a sensor. You don't expect the maker of a violin to be the best player, and to use a photographic analogy Polaroid didn't anticipate or even encourage the kinds of uses people got from their products.
Poorly implemented standards, bodged algorithms, and scattered knowledge are vastly preferable to unvarying, definitive implementations of converters from companies who are not actually known for their software quality. The former will continuously evolve through the pressure of competition and the thirst for innovation. The latter will stagnate like APS and disk film.
Arief Novisto , Nov 04, 2008; 06:39 p.m.
"photographers avoid their software like the plague"
I for one like DPP, their interpretation, their lens correction feature etc. I can copy style and paste it to
the group etc. I've no use for lightroom. If I need to edit more extensively I convert the CR2 to either TIFF
or DNG and edit in PS, or just use the JPG out of camera since I shoot RAW + JPG sometimes.
I understand where you're coming from and who knows what's going to happen down the line but for now
I trust the manufacturer rather than the 3rd party.
Patrick Lavoie 

, Nov 04, 2008; 06:41 p.m.
for what reason then im staying with Ligthroom? dam, i should get DPP rigth away and start getting better image for my client..all this time i tought my image look good...
_______________
I think a software is as good as the operator; if pro, real pro, have switch from C1Pro (or others) to Ligthroom..there must be a reason? why then those pro ditn use DPP or Capture instead?..maybe because they can get a better or similar quality out of it, as fast as anyone can do it with the manufacturer software.
Thats not to start a argument about apple vs orange, it just to let people know that serious user get amazing result as today with Lr, sure a littler preset would be a nice addition (they already start doing some for nikon and canon) but if i can develop a canon or nikon raw in 10sec in Lr..im sure other user can also.
Patrick Lavoie 

, Nov 04, 2008; 06:44 p.m.
on the other end, i keep my workflow simple by knowing only 1 raw converter and master it well, instead of having to get capture, dpp, c1pro and others existing, since im working for photographer and therefore have acces to a lot of different brand and model raw everyday. It would be insane to have all of those software and tried to fully understand them.
Rishi Sanyal , Nov 04, 2008; 07:34 p.m.
Patrick,
Do you shoot any landscapes? It's not just that I can't, in 10 seconds, get pleasing results from LR. I can spend countless hours in LR & NEVER get the right colors. Because the RAW conversion is just plain wrong. Reds should not be orange and oranges should not be yellow. When I shoot Velvia film, an orange sunset comes back orange, not yellow/green (& yes I have a profiled monitor & have intensely studied color management).
I'm not doubting it works for you. I'm just saying that, objectively, reds should be red. And btw I scored perfect on the following Color IQ test :)
http://www.xrite.com/custom_page.aspx?PageID=77
And Michael: wow, I gotta say, in your one posting you've convinced me that you're right & I'm wrong :) I guess I'm also more willing to concede defeat now that the ACR team has put out pretty damn good profiles as of the October 22nd update that I linked to above.
Cheers,
Rishi