Digital BW, The Print

This is my understanding as well, Eddie.
 
 My approach is much the same as Ginny's. I archive at least 90% of my
finished images as 8 bit files having done all modifications in PS
while in 16 bits. 
Those images I feel are worthy, 5-10% or so, I store in 16 bit format.
It saves me a lot of space AND, more importantly, I'm not so
interested in those 'run-of-the-mill' images...so 8 bits is fine with
me, even long-term.

Howard 


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Edward Wiseman"
<pahts@...> wrote:
>
> I'd like to "jump-in" if I may..
> If one chooses that sometime in the future when he/she has MORE
knowledge of
> editing an image via PHOTOSHOP or whatever, they stand MORE of a
chance of
> getting a better PRINT IMHO, if their "new-found" knowledge is
applied to a
> 16 bit  image..As for printing out this "final" image file, the printer
> itself cares not whether the image is 16 or 8 bits, but will express the
> information  much BETTER in the form of a print that has been EDITED
in 16
> bit..
> 
> 
> Just my 2cents..
> 
> Eddie Wiseman
> 
> 
> ----- Original Message ----- 
> From: "ginnylady33" <ginnylady33@...>
> To: <DigitalBlackandWhiteThePrint@...m>
> Sent: Monday, March 20, 2006 8:33 PM
> Subject: [Digital BW] Re: Archiving images on DVD?
> 
> 
> "You are quoting things again that are not true"
> 
>  'Again'?
> 
>  What are you referring to John? Be specific. If you are going to take
> a shot at me, be specific.
> 
>   As I said,  I could not tell a 16 bit from an 8 bit print. Not one
> of my discerning photographer friends could tell a 16 bit from an 8
> bit print. If neither myself nor any of my 3 critical photographer
> friends can tell an 8 bit from a 16 bit print, I'm not going to store
> finished images at 16 bits. I value most what my eyes tell me
> regarding image quality. The prints made from 8-bit files look just
great!
>  I welcome you to store your images in 16 bit format. But, I would
> seriously doubt that one can tell the difference between a 16 bit and
> 8 bit print.
>  Let's really investigate the matter...setup a double blind study.
> Let's do it. It must truly be double-blinded. Prints made from 16 bit
> files vs. prints made from 8 bit files from the same image. Let's see
> if anyone can consistently tell the difference.
> 
>   Best Regards
>   Ginny
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "John Moody"
> <moodymz3@> wrote:
> >
> > Ginny,
> > You are quoting things again that are not true; print drivers are
> not _only_
> > 8-bit.  There are print drivers with a complete 16-bit pipeline;
> this has
> > been discussed numerous times.
> >
> > I have owned an LS-8000 for years, and I'm also a member of that
> list.  Your
> > impression that "The vast majority of people agree" 8 bits is
enough, is
> > generally opposite of my impression, but that's OK, I just hope that
> people
> > consider the few pennies saved on storage before they toss away so
many
> > tones.
> >
> > 16-bit storage is required if you want to preserve the quality of
> the scan
> > you just made, period.
> >
> > Best regards,
> > John Moody
> >
> > -----Original Message-----
> > From: DigitalBlackandWhiteThePrint@...m
> > [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of
> > ginnylady33
> > Sent: Monday, March 20, 2006 6:32 PM
> > To: DigitalBlackandWhiteThePrint@yahoogroups.com
> > Subject: [Digital BW] Re: Archiving images on DVD?
> >
> > Th topic of 8 vs 16 bit storage has been discussed extensively on the
> > LS-9000 forum. The vast majority of people agree that there is no
> > point storing images that have already been corrected at 16 bits. 8
> > bits is just fine.
> > A quote follows from the conclusion of the thread.
> >
> > As with everything, there will be other opinions.
> >
> > In truth, I tried hard looking at prints made from 8 bit and 16 bit
> > files and there was no difference visible. I then asked 3 photographer
> > friends if they could pick out the 16 bit prints and they could not.
> > End of story for me.
> > (The guys I asked are really good and have critical/discerning eyes.)
> >
> > "Storing and printing 8 bit vs. 16 bit will never show any difference
> > because the printer driver only works in 8 bit. However, if you open
> > an image and do any extensive editing of the colors, retouching faces,
> > or any transformation of the RGB values into other values you can then
> > run into posterization problems. Think of it this way. Adjusting 256
> > shades (8 bit) into 128 shades has lost half of the visible(?)
> > information. Converting both results to 8 bit for printing will only
> > result in an error of 1 or 2 out of 128 and you can't probably see it.
> > Transforming 65,535 shades (16 bit)  into half the space gives 32,765
> > remaining shades. To visualize the issue, set your monitor card to
> > High Color (16 bit) and view some of your pictures that have nice
> > blends (blue sky or skin tones) and then look at the same in True
> > Color (32 bit). You can see the difference. If it didn't matter, our
> > monitor cards would still be only 4 bits per RGB color.
> >
> > The bottom line is that 16 bit storage is only appropriate if you will
> > want to do significant editing to the image before printing it. When
> > printed or viewed you cannot see the difference because the devices
> > are only 8 bits, 256 shades of each color."
> >
> > Best Regards
> > Ginny
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> 
> 
> 
> 
> 
> 
> 
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