Re: Umbria 2006

Hi Oliver,

First of all, these are wonderful travel images.

But on the technical front: to me, the images also looked too bright on my Windows PC at home. I have just looked at them with my Powerbook, and it is still the case (although perhaps a little less so than on the Wintel box). In any event, I downloaded on of the images at random and opened it in Photo Mechanic just to see what the color space is. As I suspected, it was Adobe RGB, not sRGB. I suspect that what is happening is the following: you scan the file and create a TIFF file in the sRGB color space. But when you then open the file in Photoshop, the color space is reset to your working color space, which is Adobe RGB. You do not realize that this is happening, so you then happily do your editing and convert to JPG, thinking that you are in sRGB the whole time.

I am of course guessing a bit here, but I am pretty sure that this is what is happening. For sure, the image I checked (06Umbria32.jpg) is in the Adobe RGB space, not sRGB.

The cure is simple: have the scanner create the file in Adobe RGB and do all your subsequent Photoshop work in that space as well (it is wider and better than sRGB). As a last step, just before you convert to JPG, make sure you convert the image to sRGB.

Nathan

On 20-sep-2006, at 17:01, Oliver Bryk wrote:

Bob wrote:
"Oliver,
I'm curious. What color space did you save your jpegs in?
Bob"

Bob, I scan on a Nikon 4000 with VueScan to create TIFs in sRGB. I edit in
TIF mode. I convert to JPG before uploading or e-mailing. AFAIK the profile
does not change.
Thanks for looking, Oliver



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Nathan Wajsman
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General photography: http://www.nathanfoto.com
http://www.greatpix.eu
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