Images display very differently in C1 and PS

[wlaidlaw]

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I had just emailed Edmund to ask him for some of his new profiles, as I seem still to be getting very bright, over-saturated greens when using one of my older profiles in C1. The images were taken with a Coded Biogon 35 with the M8 set to Detection On + UV/IR. However when I look at the same TIFF of the image in Photoshop, it looks about right, maybe even too dark and a touch undersaturated. I attach a resized JPEG of the image done in PS but with no other alterations. Finally I looked at the image in the full screen mode of iPhoto and it looks more like the preview in C1, than the much cooler, less saturated appearance in PS. I have tried resetting the colour space in the Colour Settings on the Edit menu in PS but it does not seem to make a lot of difference. I am using a calibrated (Monaco Optix) Intel iMac to view. C1 is using the same monitor profile as PS. Is anyone else seeing a difference in appearance between C1 and PS? Am I doing something wrong?

 

Wilson

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[wparsonsgisnet]

Winston, I am not seeing a difference, but am not shooting foliage at this time.

 

I have done many dance shots and protraits in 1.1 with Edmunds (1.092) Tuned2 profile, and they're fine.

 

I handle the dng's in C1, wb, adjust as necessary, crop, and save as a tiff for any other processing and printing in PSCS2.

 

I do not see any difference in the images on my screen either in C1 or PS. I also end up in ACDSee periodically. In that software the images are a slight bit brighter, but there are no color shifts.

 

Using windoze, a Sony 19" lcd, and a Pantone Huey for calibration.

[adan]

Wilson: If I'm reading you right, you're saying that you are seeing one set of colors (or colours) on-screen during the conversion of the .dng in C1, and different, less saturated colors on-screen once you save the image as a TIFF and then open that TIFF in Photoshop. That is, you are not comparing an Adobe RAW conversion to a C1 RAW conversion (which would open a whole different set of possibilities).

 

This sounds like a color-space mismatch to me. What preferences are you using for color management in C1 and for Photoshop?

 

If, for example, you are using Adobe 1998 in C1, and have color management turned off in PS (or at least have the profile-mismatch warnings turned off), I'd expect results about like you describe. Without CM turned on, PS may be assuming that all images are in sRGB color space, and thus assigning duller, less saturated colors to the RGB values it reads for each pixel.

 

Your posted shot tells me it has NO color space assigned to it - but that may just be an artifact of saving for the web.

[wlaidlaw]

Wilson: If I'm reading you right, you're saying that you are seeing one set of colors (or colours) on-screen during the conversion of the .dng in C1, and different, less saturated colors on-screen once you save the image as a TIFF and then open that TIFF in Photoshop. That is, you are not comparing an Adobe RAW conversion to a C1 RAW conversion (which would open a whole different set of possibilities).

 

This sounds like a color-space mismatch to me. What preferences are you using for color management in C1 and for Photoshop?

 

If, for example, you are using Adobe 1998 in C1, and have color management turned off in PS (or at least have the profile-mismatch warnings turned off), I'd expect results about like you describe. Without CM turned on, PS may be assuming that all images are in sRGB color space, and thus assigning duller, less saturated colors to the RGB values it reads for each pixel.

 

Your posted shot tells me it has NO color space assigned to it - but that may just be an artifact of saving for the web.

 

Andy,

 

You are correct. In a phone call last night with Edmund, he put me straight. It was a question of assigning a colour space option of Adobe RGB for the TIFF image processing in C1 so that the bottom line of the window below the image, now shows "from the selected camera profile to Adobe RGB" or whichever other profile I opt for. I had thought that I could do this on Photoshop, post C1 processing but of course this is incorrect. All now looking the same. What had confused me is that you don't see this option on C1 on the batch processing page but only on the single image processing page. You set it there and the batch processing follows the same route. As I had always been using batch processing, I had not noticed the option.

 

Wilson