RE: Dmax of VD prints

[Sandy King <sanking@clemson.edu>]

Keith Gerling wrote:

>Thanks, Sandy.  At least this is beginning to make some sense.  If I
>interpret your words correctly, using the same negative for both kallitype
>and Van Dyke (no "correctness-checker" on my end!) would result in a flatter
>Van Dyke print, which is entirely the case in my situation.
>


Yes, you would get a flatter print with VD than kallitype,  if  (1) 
you were using a negative with a very high shadow value density and a 
relatively low density range and 2) exposure was carried out to just 
reproduce textured whites.

On the other hand the actual DR requirements of VD and traditional 
kallitype are very similar, so if you have an optimum negative (one 
with a low shadow value density and with a total DR of about 1.4-1.6) 
you should get prints from the two processes with similar tonal 
values and Dmax.


Sandy King