Digital BW, The Print

Thanks Jim, will give it a try.

Vinny
http://www.wulfsden.com


-- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jim hayes 
<jimhayes@f...>" <jimhayes@f...> wrote:
> In the color settings dialogue just make sure you have gamma 2.2 
> selected for greyscale space and sRGB selected for RGB space (if 
you 
> choose "Adobe photoshop 5 defaults" at the top you get this 
> automatically). Set this in both ver 6 and ver 7. Then get a dark 
file 
> and write down the hist numbers- there will be a small diff but it 
> still means that the two versions are converting differently.
> 
> Then go back to color settings and change RGB space to Adobe98 and 
see 
> how the histonumbers are identical, or much more close anyway.
> 
> You can also just create a file with patches from 90%k to 100%k or 
use 
> Paul's step wedge in files section of this group. You will see the 
> most innacuracy in conversion in this region(95%k).
> 
> It affects a minority of photos, but I got posterization in shadows 
> with VM curves. Many folks have no problem. The solution is to use 
> pshop 6 to print, or alter Paul's curves in pshop 7 IF based on 
sRGB 
> (lucky MAC folks don't use sRGB for 1280 but windows folks do, 
unless 
> this has changed since June). Or simply use Adobe98 for the space 
in 
> pshop 7 and see how it works.
> Jim H.
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Vincent 
Orlando 
> <orlandovl@h...>" <orlandovl@h...> wrote:
> > 
> > Jim, I assume the conversion is done in the color settings or is 
> > there somewhere else I can convert without changing the color 
> > settings? Sorry if I sound uninformed about all the intricacysof 
PS
> > 
> > Vinny
> > http://wulfsdden.com
> > 
> > 
> > 
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jim hayes 
> > <jimhayes@f...>" <jimhayes@f...> wrote:
> > > Take a file in greyscale with gamma 2.2 space, preferably one 
with 
> > a 
> > > lot of dark to it. Convert it to sRGB in both PS6 and PS7 Each 
> time 
> > > write down the histogram statistics (mean, median, std 
deviation). 
> > See 
> > > how they differ in PS7 but not in PS6? That's the bug. Try 
> > converting 
> > > to Adobe RGB 98 space. See how they now will differ very 
little, 
> if 
> > at 
> > > all in either version? So if using Paul's curves and PS7, avoid 
> > > converting to sRGB space- use Adobe RGB 98.
> > > Jim H. 
> > > 
> > > 
> > > 
> > > 
> > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Vincent 
> > Orlando 
> > > <orlandovl@h...>" <orlandovl@h...> wrote:
> > > > 
> > > > What bug are you talking about? I have been using PS7 and 
> > converting 
> > > > both ways nd using Paul's curves with no problem
> > > > 
> > > > Vinny
> > > > http://www.wulfsden.com
> > > > 
> > > > 
> > > > 
> > > > 
> > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Editor 
> > P.O.V. 
> > > > Image Service" <editor@p...> wrote:
> > > > > I use both on the same machine in WinXP Pro// Just make 
sure 
> > you 
> > > > don't 
> > > > > install them to the same directory.  Oh, and you can't open 
> one 
> > if 
> > > > the 
> > > > > other is already running.. It just never opens the second 
app.
> > > > > 
> > > > > ... BUT with the KNOWN Greyscale to RGB conversion bug, I 
use 
> 6 
> > > for 
> > > > all 
> > > > > my B&W to RGB conversions, as well as most of my Greyscale 
> > work... 
> > > > I 
> > > > > have this silly thing against unintended posterization or 
> muddy 
> > > > prints.  
> > > > > 
> > > > > If you look back through the archives here you will find 
the 
> > > > conversion 
> > > > > bug is documented AND a problem if you are using the Roark 
> > > > workflow. 
> > > > >  Adobe has said they will NOT fix the bug in 7.x..
> > > > > 
> > > > > Keith
> > > > > 
> > > > >  
> > > > > 
> > > > > "Just some guy," and caretaker of the Multiverse's largest 
> > EPSON 
> > > > printer 
> > > > > User Community (highly recommended by Vogon Poets and 
MegaDodo 
> > > > > Publications), at:
> > > > > 
> > > > > http://groups.yahoo.com/group/EPSONx7x_Printers/
> > > > >  
> > > > > "For the rest of you out there, the secret is to bang the 
> rocks 
> > > > together 
> > > > > guys"
> > > > > 
> > > > >  
> > > > > 
> > > > > 
> > > > > { The P.O.V. Image Service Website is still at 
> http://www.p-o-v-
> > > > image.com/ }
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > [Non-text portions of this message have been removed]