Digital BW, The Print

Thanks Paul.  Do you know if there is a way that I can use AdobeRGB 
as a working space, but then 'convert' files to sRGB when I need to 
send them out to the lab?

Is AdobeRGB only necessary for your curves when the final conversion 
to RGB for print is necessary (ie could I work in sRGB all the time, 
then prior to applying the curves on the print file, convert to Adobe 
RGB)?

Or I am making all this orribly complicated???


PS.  Thanks for the revisted 1290 W1 curve - I will let you know how 
I get on and will send you a scan.  I'd be surprised if the originals 
were corrupted - I got them on 4 seperate occaisons and they are all 
the same.  

steve. 



--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> Steve,
> 
> As it relates to the MIS curves, the sRGB space appears to simply 
compress
> the dark tones slightly compared to the Adobe RGB.
> 
> Paul
> _____________________________
>   -----Original Message-----
>   From: scrber [mailto:stephen.bate@m...]
>   Sent: Thursday, September 26, 2002 12:35 AM
>   To: DigitalBlackandWhiteThePrint@y...
>   Subject: [Digital BW] Re: -MIS VM problem - adobeRGB vs sRGB ?
> 
> 
>   A generic colour space question.
> 
>   I print colour to a labs lighjet via digital files (colour space /
>   profile must be sRBG).
> 
>   I print B&W to an Epson 1290 with MIS VM and CIS.  Pauls Curves 
are
>   supposed to be used with an AdobeRBG colour space.
> 
>   I am not too hot on the whole colour management schebang yet.  
But as
>   a lot of my files are colour (convertded to B&W), I wanted to use 
the
>   same profile for all.
> 
>   So...Any idea what happens with the PR curves when I use sRBG, or
>   vice versa, if I send my digital files to the lab with an Adobe 
RGB
>   profile?
> 
>   Any way I can simplify my workflow - as the moment it is a 
hotchpotch
>   of profile mismatches and conversions.
> 
>   Thanks
> 
>   Steve.
> 
> 
>   --- In DigitalBlackandWhiteThePrint@y..., "jim hayes" 
<jimhayes@j...>
>   wrote:
>   > For the 2nd conversion from greyscale to RGB to prepare for
>   printing:
>   > It may be implied, but also make sure that you are not in your
>   editing
>   >  greyscale space (the greyscale space you use to get your 
monitor
>   to
>   > match print, 20%dot gain, more likely a custom dot gain curve,
>   etc),
>   > and make sure that you are in the appropiate RGB space Paul's 
calls
>   > out for your printer/OS combo. In most cases this is conversion
>   from
>   > the grayscale space of "gamma 2.2" to either "sRGB" 
or "Adobe98".
>   >
>   > But I question if the first conversion from RGB to greyscale 
would
>   not
>   > comb out your image data and cause posterization even before you
>   had a
>   > chance to work on it. Have to be checked anyway. Might be okay 
if
>   you
>   > were in 16 bit mode.
>   > Jim H.
>   >
>   >
>   >
>   >
>   > --- In DigitalBlackandWhiteThePrint@y..., "Vincent Orlando"
>   > <orlandovl@h...> wrote:
>   > > Bob, what I found after many hours is if the scan picks up any
>   sort
>   > > of color, which it normally does, before printing change to
>   > grayscale
>   > > and back to rgb and you should be allright
>   > >
>   > > Vinny
>   > >
>   > >
>   > > --- In DigitalBlackandWhiteThePrint@y..., workmantx@a... 
wrote:
>   > > > Vinny,
>   > > >
>   > > > Thanks for the information.  I'm going to be shooting and
>   working
>   > > with some
>   > > > chromogenic film shortly (Ilford XP2 super).  I'll scan as 
RGB
>   and
>   > > wasn't
>   > > > sure exactly how my workflow should progress in PS before
>   applying
>   > > Paul's
>   > > > curves.
>   > > >
>   > > > Bob
> 
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