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Digital BW, The Print

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Re: [Digital BW] Correcting exposure for Gray Gamma 1.8

2005-03-16 by Johnny Eades

The monitor is one year old and is a NEC Multisync 97F 19 inch, which 
was calibrated using Pantone/Colorvision Spyder. The problem is not 
with the monitor or hardware at all. GG1.8 inherently gives more 
detail in the lower Zones than GG2.2. That is a given. That is one 
reason Zone V in GG1.8 is higher than in GG2.2 and that is what 
allows the detail to be more visible in the lower Zones. This is on a 
21 step grayscale strip. Now I'm trying to create a curve for 
paper,ink combination in QTR. I think that is going to be a good 
learning experience (if I don't pull out my hair).

Your friend in Photography,

Johnny


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Tom Baker 
<tbaker1328@s...> wrote:
> What kind of monitor, and how old, are you using.  You shouldn't be 
having this kind of problem.
>  
> Tom Baker
> 
> 
> Johnny Eades <jeades1@s...> wrote:
> 
> 
> The reason I wanted to use Gray Gamma 1.8 as the calibration mode 
for 
> my monitor was the need for more detail in the lower Zones (I-III) 
> than Gray Gamma 2.2 allows. If I were to switch to GG2.2 then those 
> details would be lost and I would be worse off than now. For the 
time 
> being I guess I'll just use a curve upon opening the image to boost 
> the middle gray from 128 to 145 and go from there, unless someone 
who 
> has gone through this themselves an has found the solution would 
care 
> to jump into the thread. Oh, if I only had a spectrophotometer to 
> create printer profiles! Would anyone in the group volunteer to 
help 
> me with this by profiling my printer/paper/ink combination?
> 
> Your friend in Photography,
> 
> Johnny
> 
> 
> 
> 
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Seth" 
> wrote:
> > Johnny-
> > 
> > I think things are gradually changing. A LOT of print shops, 
> whether MAC or
> > PC-based, are using a gamma of 2.2 now. It has/is become a defacto
> > standard. Probably just to keep all things level.
> > 
> > Guessing now, most shops were MAC based, most input was getting 
to 
> be from
> > PC, so it all evened out for continuity.
> > 
> > Seth 
> > 
> > ==-----Original Message-----
> > ==From: Johnny Eades [mailto:jeades1@s...] 
> > ==
> > ==
> > ==My monitor is calibrated for Gray Gamma 1.8, so I should be 
> > ==making my exposures so that middle gray should read on the 
> > ==monitor as RGB 145. 
> > ==Is that correct? Practically all the 21 step grayscale strips 
> > ==are set up for Gray Gamma 2.2 and have 128 as middle gray. In 
> > ==addition to the monitor set up as GG 1.8 it is set so the 
> > ==color temperature is 5000K and I view all my prints under a
> 
> 
> 
> 
> 
>

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