Search found 3 matches

by Rich P
Sat Dec 17, 2016 9:42 am
Forum: HiRePP® - NegaFix - Profiles
Topic: Scanner Profiles and Negafix
Replies: 6
Views: 3092

Re: Scanner Profiles and Negafix

Hi Arne, Could you please expand on this? I have often wondered why IT8 profiling is not considered when scanning negs. Let's say my aging scanner is loosing sensitivity in the red channel. This is very obvious visually when scanning a positive image, and an IT8 calibration will compensate for this...
by Rich P
Mon Dec 05, 2016 11:01 am
Forum: HiRePP® - NegaFix - Profiles
Topic: NegaFix Expansion Histograms
Replies: 0
Views: 1354

NegaFix Expansion Histograms

I often find that the upper and lower limits of the RGB expansion histograms, when set automatically, are very inconsistent from image to image, even within a series of similar photos, which is leading to very inconsistent, unnatural colour and contrast. I had in idea which seems to work brilliantly...
by Rich P
Tue Sep 15, 2015 7:48 am
Forum: All other problems
Topic: IT8 calibration target neutrality?
Replies: 2
Views: 953

IT8 calibration target neutrality?

I've just calibrated a new Plustek 8200i with the included Fuji target on my Mac Pro (which has an X-Rite calibrated screen) and when I scan the target itself it appears to have a cool/bluish cast. When I open the resulting image in editing software the RGB values of the 'greyscale' section at the b...

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