LR2/ACR4.5 color issues

Moderated by: Hendrik, guardian

Visit the FM Store · Image Upload · Buy & Sell
FM Actions & Plugins support
Workflow Guidelines

FM Forums | Post-processing & Printing | Join Image Upload
end

alexhibbert
Offline
Image Upload: Off

p.1 #1 · LR2/ACR4.5 color issues

Hi everyone, I wonder if you can help.

I've been using both LR2 and CS3 trials to decide which to purchase, and have made some edits in CS3's ACR4.5 with the new camera profiles. I have also installed these profiles into LR2.

I made the edits in Adobe RGB color space in ACR and have the histogram graph showing the extremes at the edges of the histogram (as I wanted them). However, on importing the same CR2/xmp file into LR2's develop module, the histogram looks totally different - shoved up to the right and with the left extreme nowhere near the left hand end of the histogram. As both are powered by ACR4.5, shouldn't they be identical?

Any input greatly appreciated.

Alex.

Edited on Aug 05, 2008 at 03:57 PM

Aug 05, 2008 at 03:55 PM

butchM
Offline
Image Upload: Off

p.1 #2 · LR2/ACR4.5 color issues

The color space when working within LR is a form of ProPhoto RGB, which has a wider gamut than Adobe RGB. This may be part of the problem. Although if comparing a RAW image in LR to a rendered image in PS the histo will look different. But one would think, if all development settings are equal, the histo in ACR should be quite similar to LR.

Aug 05, 2008 at 06:21 PM

HerbChong
Offline
Image Upload: On

p.1 #3 · LR2/ACR4.5 color issues

irrespective of whether the histograms match, and they should be quite close, you will end up getting both eventually, so the real question is which to get first.

Herb....

Aug 05, 2008 at 08:46 PM

alexhibbert
Offline
Image Upload: Off

p.1 #4 · LR2/ACR4.5 color issues

thanks for the replies. at the moment heading towards a second hand copy of cs3.......

Aug 05, 2008 at 09:08 PM


FM Forums \| Post-processing & Printing \| Join Image Upload end