Shootist Posted June 24, 2009 Share #21 Posted June 24, 2009 Advertisement (gone after registration) As far as TIFF Vs PSD files I did a little test this morning. I took one file that had 3 layer in it and was originaly save as a PSD file. I then saved it as a TIF file with no compression. The original PSD was 198MB's, with MAX compatibility so LR can see it, the TIF jumped to 287MB's. Then I saved it with LZW compression and it only dropped to 286MB's then with ZIP compression and it went down to 260+MB's. Well I'll be staying with PSD as my editing file type. Not that I'm running out of disk space but having a file jump 90MB is just over the top. Another reason for this is if and when I do use C1 to process images they are always processed to TIF files. That way I know which files went through C1 and which went through ACR. Yes I do also save the C1 processed files in PSD for editing. But I use C1 so infrequently it doesn't add that much to the disk usage. Link to post Share on other sites More sharing options...
Advertisement Posted June 24, 2009 Posted June 24, 2009 Hi Shootist, Take a look here Histogram becomes corrrupt when edit in CS3. I'm sure you'll find what you were looking for!
jeff_clegg Posted June 25, 2009 Author Share #22 Posted June 25, 2009 When I import my dng file from my M8 direct to Adobe Bridge CS3, it comes over as an 8 bit file. This may be a dumb question: how do I import as a 16 bit fils? Jeff Link to post Share on other sites More sharing options...
Shootist Posted June 25, 2009 Share #23 Posted June 25, 2009 When I import my dng file from my M8 direct to Adobe Bridge CS3, it comes over as an 8 bit file. This may be a dumb question: how do I import as a 16 bit fils?Jeff It's a setting in Adobe Camera RAW along with the resolution, PPI, used during the RAW processing to PS. Bottom left hand side of the ACR window, "Show Workflow Options". Put a check in the box and another section opens that has the Color Space, Depth (8 or 16 bit), Size and Resolution. Link to post Share on other sites More sharing options...
jeff_clegg Posted June 26, 2009 Author Share #24 Posted June 26, 2009 Bingo, that did it! Thanks Shootist! Jeff Link to post Share on other sites More sharing options...
jaapv Posted June 26, 2009 Share #25 Posted June 26, 2009 Set the colour space to aRGB, whilst you are at it As long as you don't forget to dumb it down to sRGB when publishing on the Iternet. As a perhaps superfluous sidenote, when converting to JPG in the end you will have to go to 8 bits prior to saving. TIFF or PSD will accept 16 bits. Link to post Share on other sites More sharing options...
jeff_clegg Posted June 30, 2009 Author Share #26 Posted June 30, 2009 Jaap, I got the book "Photoshop Lab Color" by Dan Margulis. Now, I will need to muster the time and courage to get into it. Thanks, Jeff Link to post Share on other sites More sharing options...
jaapv Posted June 30, 2009 Share #27 Posted June 30, 2009 Advertisement (gone after registration) Two weeks headache - but worth it Link to post Share on other sites More sharing options...
jeff_clegg Posted July 21, 2009 Author Share #28 Posted July 21, 2009 Started on chapter 1. The instruction is to reverse the gradient under "Curves" to light on the left and dark on the right. I am using Photoshop CS3 and when I follow the steps as outlined in the book, I am not able to reverse the gradient. Can you help? Jeff Link to post Share on other sites More sharing options...
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