Digital BW, The Print

> From: joshhackney <joshhackney@...>


> Steve Kale is working in ???? space and printing with
> "let ps 
> determine colors" with profiles he has created with an i1 and QTR.  Is this
> correct?

Yes - specifically with QTR Create ICC.  I use GG 2.2 for my greyscale space
and normally ProPhoto for colour.  When working on a B&W doc though I
typically export from my raw converter to Adobe RGB as I don't need the
gamut of ProPhoto.

> 
> I asked the original question because I have seen on this forum that many
> people work in 
> GG2.2.  It seems that many (not all) of the active posters on this forum are
> shooting some 
> sort of b&w film and scanning.  Therefore it makes sense for them to scan
> directly into a 
> gray space.  My real curiosity is that for those of us shooting digital, that
> start out in an 
> RGB space, is it useful to convert to a gray space after our color to b&w
> conversion, and 
> before continuing the rest of our edits in PS?

It saves a lot of storage.  But then I convert to B&W by splitting the
channels and save these as separate layers.

>Are there any downsides to
> staying in RGB?  
> Possible tints introduced,

No

> file size

Yes
> . . . something else?  I only ask because
> my current 
> workflow includes Photokit Sharpener, which requires an RGB working space.

Same here and that is why I set Adobe RGB as my colour workspace when doing
B&W work.  GG 2.2 is a neat subset of Adobe RGB and so switching back and
forth between greyscale and RGB colour doesn't entail a lot of contortion.
  
> 
> Another question I have is why greygamma 2.2, and not greygamma 1.8?

If you convert to a profile that depicts your printer it doesn't matter
(think colour management in a colour workflow - you output to a printer
profile just before or concurrent with printing)

>When I 
> bought 
> my first set of piezotones for a 1280, the documentation from Cone said to use
> GG1.8.
> 
> The context of my question is that I am currently in transition from
> ImagePrint on a 2200
> to a yet to be determined RIP on a 7800.  That RIP is likely to be QTR, and
> the 7800 is 
> likely to be running K7.  Tyler has me thinking about StudioPrint too - if
> only they had a 
> Mac version.  I am currently evaluating K7 in my 2200, but have found the
> generic curves 
> to be insufficient, and I am therefore preparing to purchase a GTM i1 asap.

Make good use of QTR Create ICC.  It is worth the price of QTR alone.