Digital BW, The Print

On 3/24/02 darkroom@... wrote:

>No...that's the point.  Density ratio values are NOT the same as dynamic
>range.  The value of 1 is the step size of density ration values, but NOT of
>dynamic range.  "1" is nothing but a ratio value, as in, 2:1 is twice as
>dark...  Technically, something can be 1.223456:1 times as dark, but the
>density ratio value system is based on :1, and does not accommodate this...

Austin, you are quite correct in making the distinction between density
ratios and dynamic range but your statement that density ratios must be
integers is just plain wrong. I don't know where you get that from,
unless perhaps you are somehow thinking of binary representations. I know
you are fond of asking people to source their statements so I am calling
you on this. Source, please.

-- 
John Brownlow

http://www.pinkheadedbug.com