Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Glenn Mitchell"
<gmitchel850@y...> wrote:
snip...
> > > Dan Margulis' seminal book "Professional Photoshop" pretty much
> > debunks the need 
> > > for 16-bit.
> > 
> > http://www.brucelindbloom.com/index.html?DanMargulis.html
snip...
> 
> More of the same ipse dixit fallacy.

Sorry, I don't speak latin.

> Actually, Bruce Lindbloom admits...
snip..
> Why was this point left out of the discussion?! It was right there 
> in the linked discussion.

Providing the link to the entire discussion hardly leaves any points
out, I think it could be considered all inclusive. I don't recall
advising ignoring anything on the site.

> Why leave out other experts, who clearly disagree? Like Fraser and 
> Blatner, Kieran, etc. That makes the evidence selective.

A poster brought up Margulis, I recalled Lindbloom's page and provided
it. Searching for and providing links to all relevant discussions on
the planet didn't occur to me.
You go on to restate much on Lindbloom's site, so I assume you agree
with it.

snip...
> I and others who work in 16-bits are not talking theory. Our very 
> real experience is that there is more editing headroom with 
> increased bit depth.

That's obvious and indisputable, providing the science (hardly theory)
simply supports it.
Many, including Fraser, have noted that in RGB some editing can be
done in 8 bit without deterioration at output. There are 3 channels
blending, and multiple inks dithering at output.
This is the digital black and white printing list. Most of the users
here are editing in gray at some point in the workflow, that's one
channel, no others will blend and possibly mask tonal gaps. A priority
for most here is linear continuous tone output in some form, this gets
better by the day. Therefore as output becomes more critically
accurate, the more critical the tonal integrity of the file. When was
the last time Margulis scanned, prepped, and output a single channel
file on a high quality monochromatic output system? Most of these
people are offering nothing relevant to our concerns. Editing an 8 bit
single channel file is throwing out info rapidly.
So as we continue to obsess here about perfect continuous tone output,
inks, printers, drivers, RIPs, curves, whatever, the only relevant bit
depth question is-
Why would you not be going to every conceivable extreme to maintain as
much tonal information as possible in your files?
Tyler