Hi!

Some months ago I installed the Beta Profiles (D3) on my Mac (OS X 10.6.5).
Till yesterday I was able to choose the V2 Profiles during the import or later.
Now they are in LR3 (3.3) not available any more.
In PS CS4 I can see them.
I copy the beta profiles to  /Library/Application/Support/Adobe/CameraRaw/CameraProfiles twice without success.
Does any one know what's the fault?

greetings,

safo

Hi Eric,

I only use RAW files.

greetings,

safo

Thanks again for your respons,

Well, here we could wrap it up. To stick with your metafore: i would like to stick another roll of film into my Nikon once in a while.

A roll of Canon for perhaps.. You can do a lot but still, what you can do with raw conversions you can't do on another level.

I happen to proces more camera raw's and a Canon will never turn into a Nikon vice versa.

Just out a curiosity, would that technically possible to make look up tables to convert one raw (close) to the other?

Menno

Well, I'm still interested.

menno1000,

In addition to Eric's respont, I will add that you can actually build a profile for your Nikon camera that will return 'Canon colors'. For this, you need to combine a profile for your camera with a profile for one of Canon cameras

Workflow of color conversion in ACR roughly consists of two parts. First part is conversion from sensor color space to Photo Pro color space, which is done with simple matrix operation. Second part is rendering, using two tables - lookup table and tone curve table. So you have Adobe standard profiles for different cameras. Each profile has different set of matrices for the first part of this conversion (unique to camera model), while lookup table in all profiles is the same (actually, there are at least two versions). So, if you use Adobe standard profiles, you will get similar output from different cameras

In your case, you need for instance a Camera Standard profile for one Canon camera and a profile for your Nikon camera. If you replace color matrices in Canon profile with matrices from Nikon profile, you will get what you want. For this, you can use Sandy's utility dcpTool, which can convert a profile from binary form to a xml text file and text file to binary. You need to copy sections ColorMatrix1, ColorMatrix2, ForwardMatrix1, ForwardMatrix2 from Nikon profile to Canon profile, and to modify a line which describes profile name. Then, convert resulting text file back to binary form (with different filename) and save it to the folder with other profiles for your camera. Actually, it's a 5 min job

Anyway, there are some problems here.

First problem: first part of color conversion, using matrices, is just an aproximation. So if you use Adobe standard profile for Canon camera and Nikon camera, result won't be exactly the same. The same will happen here - result won't match output from Canon camera exactly, but should be more-or-less similar

Second problem: guys in Adobe changed the workflow in some last camera profiles (including some v2 profiles), so you can't use those profiles this way. These profiles have size about 277 kB. You can use only profiles of size 112 kB. For that reason, you also can't combine my profile for 400D with a profile for Nikon camera

VitNovak,

Very interesting. Thanks for your reply.

I'm not a programmer so excuse me for dumb questions. So i open a 

Camera standard canon profile in Sandy's utility dcpTool and open 

adobe standard for nikon? Or camera standard v1 for nikon?

So maybe in time you can do this conversion in the new workflow it 

will be even more precise.

I so what is the bottle neck with the big profiles, can't Sandy's 

utility open them?

Thanks again, im going to try this.

Ps,

I do like what you did with 400d profile. It opens up the image. Better blue's, dark tones red's are better so granddaddy and kids don't look like apples.

Is this how you did it with Sandy's util?

My "v2" profile for 400D is made from the scratch. I wrote my own code for calibrating and my own test chart with about 1 million of different colors. Displayed test chart on a crt monitor, took 7 photos of it with 7 different exposures (0.5 EV appart), to cover dynamic range of the sensor, then calculated a profile from the difference between jpegs and raws. Since it was sRGB monitor, I had to extrapolate colors out of sRGB, but I'm quite satisfied with the result

It was not an easy task, took about a month of experimenting (+ considerably more time before that, when I tried different ways to improve existing Camera Standard profile)

My profiles for Canon compacts are more precise than this one. I used another approach (and another program) - generated test raw image (with even more different colors), saved it in the camera, developped the raw in the camera using an option in CHDK software and calculated the profile from the difference between jpeg and raw

Unfortunately, I think it won't be possible to calculate a "Nikon-Canon cross-processing profile" with either of these two approaches, as they are based on the differences between raw and jpeg output from the same camera

Wow, you dig deep. wonderful. I think you can only achieve excellent 

result in this way.

So you made these profiles as an assignment?

Ok, well i'm interested for sure. I own a D700. And this one you did 

copy in the way you described?

Looking forward, thanks.

By the way, Eric sent me his latest version of these profiles (v3) and they look great (closer to the tonal range of the original profiles, while getting rid of all those artifacts). You do have to modify your base exposure to -0.5EV though for them to work, but you can just apply this as a preset or as default settings. Hopefully these will get tested more and publicly released soon.

Vit,

Thanks i'd like to try your d700 profile, where can I find It?

Sorry Vit, i read the thread from my mail and now i notice only half  

the messages were displayed in this way.  I did not see your download 

link, so now i'm gonna look at your profiles!

Mine says FLASH PLAYER 11 ACTIVEX. Explain please.