Re: Soft-proofing discrepancy (?) [was: Softproof puzzle]
Re: Soft-proofing discrepancy (?) [was: Softproof puzzle]
- Subject: Re: Soft-proofing discrepancy (?) [was: Softproof puzzle]
- From: Peter Miles <email@hidden>
- Date: Fri, 05 Dec 2014 19:20:38 +1300
Hi Martin and Matthew
No, I don't think it's 8 bit issue or a dithering issue or black point compensation.
I did the following test
1: I created a new document - Adobe RGB1998, 2000x500 pixels, 16 bit, In photoshopCC
2: Filled the document with a gray ramp, with no dithering, black to white, from from one end to other.
2: Duplicated the document
3: Converted the Duplicated document to Gray Gamma 2.2
4: Soft-proofed both Gray ramps : Hahnemuhle308 profile (profiled as cmyk), RelCol, BPC = on, Simulate paper white = on
Result: RGB gray ramp show posterizing in shadows. Gray Gamma 2.2 Gray Ramp shows smooth shadow transition
Viewing on EizoCC241 Monitor
And...
While I see the banding in the soft-proof of the RGB file, the banding disappears when I actually do a Profile To Profile conversion into the printer colorspace.
Further, the soft-proof* of the converted file now matches the soft-proof of the Gray Gamma 2.2 gray ramp file.
*[Hahnemuhle308, Rel Col, BPC = on, Simulate paper white = on]
Regards
Peter Miles
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden