Digital BW, The Print

In a message dated 3/15/06 4:21:53 PM, bard960@... writes:


> As far as black and white printing is concerned, has anybody in the
> group observed any significant difference in prints from RAW files vs
> prints from JPG files shot in B&W setting? The answer would be
> relevant to memory card capacity. The question came to me reading
> Bruce Fraser's "Understanding Digital Raw Capture" where he
> writes "...JPEG does a decent job of preserving luminance data..."
> that are the data we are after in B&W photography.
> 

Certainly the worst compression in Jpeg is in the colors, not the 
luminance... but you are asking if shooting 256 fixed levels per channel (Jpeg, Tiff, 
what have you), versus the thousands that RAW gives you, is enough. Not for many 
of us...

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


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