Digital BW, The Print

Ken,

Why not just go to 8 bit in C1 and convert to proof destination (make 
sure you set this up as CMYK, preferably using the ICC profile supplied 
by your printer, on color management preferences) and not even bring the 
images into Photoshop?

Joe L

> This is not quite on point with the thread, but perhaps you can shed some
> light.  I recently did a project in CRW, converted to 16-bit tif.  The
> printer wanted me to do the CMYK conversion according to their press 
> specs,
> which I did.  The design consultant says the CMYK images have excess noise
> when converted from 16-bit to 8-bit to lay out in Quark.  I said fine, 
> I'll
> convert the 16-bit RGB files to 8 and send to you, and you can have the
> press do the CMYK conversion.  I'll be there with match prints at the 
> press.
> The design consultant indicates that any conversion from 16 to 8 adds 
> noise
> and banding because an extra 1/2 bit of noise is introduced in the PS
> conversion, and that for press work it is preferable to shoot in 8-bit jpg
> initially.  Well, there goes my custom white balance (WhiBal cards applied
> to the same image in Capture One).  I tried these conversions and on my
> screen (OptiCal calibrated LCD) could see no differences of any kind.  Do
> you or others on the list by chance know if this is BS or if there is
> something I'm missing?  Thx for any help.