Search found 10 matches

by medikoo
Fri Oct 29, 2010 11:02 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

Dear Martin, Great thanks for that explanation (!) I missed that knowledge. So I understand that by default scanner profile created with Ai Studio is good for images with already applied 2.2 gamma. Silverfast HDR recognizes whether image data had gamma applied or not by specific meta tag. PS doesn't...
by medikoo
Wed Oct 27, 2010 11:24 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

Dear Alejandro, Thanks for reply. I know about all things you mentioned. I understand color management. I know that device (scanner) profile doesn't correspond in any way to monitor profile and that image needs to be transformed from one color space to another to have it displayed correctly - howeve...
by medikoo
Tue Oct 26, 2010 10:18 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

Dear Alejandro, Thanks, that sounds clearer. However I still don't understand few things HDR raw files generated with SilverFast do not have the same gamma as the profile embedded. Why do profile embedded within HDR doesn't have gamma information corresponding to image ? Is profile totally not relat...
by medikoo
Mon Oct 25, 2010 11:35 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

LSI_Morales, it doesn't sound right to me. Firstly as I understand gamma setting is written within ICC profile, and as long as you use profiles that embeds correct information you never need to additionally adjust gamma in Photoshop. My LCD Screen profile embeds info that gamma of my screen is 1.801...
by medikoo
Wed Oct 20, 2010 7:43 pm
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

I have exactly the same settings. I don't have "for HDR output" checked, so it can't be the case. When you are opening HDR file scanned with Silverfast in Photoshop do you see same colors as you see in Silverfast HDR Studio ? I got much darker colors and I think that's not only me (?) I wa...
by medikoo
Tue Oct 12, 2010 8:56 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

The difference is actually that you are missing the gamma value when switching from one program to the other. You Should not forget that you monitor is 8 bits but your files are 16 bits, it means a lot more information of that what your monitor is capable of displaying. In that case when switching ...
by medikoo
Mon Aug 24, 2009 11:24 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

To keep your color workspace consistent you would have to make sure Photoshop uses the scanners color workspace and saves with it too. I'm not sure is it that simple. I opened file in PS (CS4) made sure it's using Scanner profile (PS by default is using embedded profile). I saved it to other tiff f...
by medikoo
Thu Aug 13, 2009 10:13 am
Forum: HDR (48bit HDR processing)
Topic: Post-Editing Options for HDR Output
Replies: 30
Views: 18378

Re: Post-Editing Options for HDR Output

What's the options of editing HDR Raw file and saving it back to HDR Raw file ? I noticed that while you can open HDR file in Photoshop, when you save it back to same format, it's not really Silverfast HDR anymore (I open it in Silvefast HDR studio and it's different - much darker) Why do I need it ...
by medikoo
Fri Jun 27, 2008 11:08 am
Forum: HDR Studio (48bit HDR processing)
Topic: from Ai to HDR; Negafix not matched?
Replies: 5
Views: 5088

Re: from Ai to HDR; Negafix not matched?

What I was referring to is not effect of different frame size. I'll put it in example: I make 48bit HDR full frame scan and open it in HDR Studio and I prescan again same film frame in Ai Studio for full scan (exactly same frame size - as for HDR scan). In Ai Studio when I work on "High resolut...
by medikoo
Tue Jun 24, 2008 12:09 pm
Forum: HDR Studio (48bit HDR processing)
Topic: from Ai to HDR; Negafix not matched?
Replies: 5
Views: 5088

Re: from Ai to HDR; Negafix not matched?

Other thing worth to mention is that in Ai all correction calculations are based on preview scan not full resolution scan (as in HDR) this also leads to different results - what's worse sometimes better results are from preview scans in AI :/ You should have nearly exact results between Ai and HDR S...

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