Re: Are 256 shades of grey enough dynamic range for silver? or platnum?

Mark,

here is a book that really covers this issue of tones in an image very well—
also the issue of sharpness of image:

http://ctein.com/booksmpl.htm

Best Wishes,
Mark Nelson
Purchase the book @
www.PrecisionDigitalNegatives.com
Credit Card & Paypal now accepted
www.MarkINelsonPhoto.com

In a message dated 9/29/04 1:42:46 AM, gum-printer@qwest.net writes:

> Hi folks,
>
> I have been lurking for years on the list. perhaps since 1993 or 1994.
> Most of the time whenI read about people asking questions someone
> very qualified has already answered.
>
> I have been making Gum Prints since 1989 and have done
> Silver Cyanotype and Collotype and have made paper negatives.
>
> Since 1992 I have been doing digital photo manipulation.
>
> Any way I have been making enlarged negatives on APHS film with some
> success..
> About a year ago I bought a  16 K Film recorder. It makes beautiful
> 4 x 5 negatives or positives.
>
> It seems that they look correct but I can't help but wonder how
> big of a dynamic range that 256 shades of grey really is.
>
> I know that it depends somewhat on what the medium one chooses
> to use to interpet the negative. I am thinking of  silver as a kind of
> starting point.
>
> Does anyone know of any objective way to evaluate this?
>
> Thanks,
>
> Mark A. Morrill
>
Received on Wed Sep 29 12:21:40 2004