[pure-silver] Re: Pyro Stain
- From: Sandy King <sanking@xxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 31 Dec 2004 11:54:48 -0500
Howard,
If you like to see an H&D curve showing the difference between the
way a PMK and Pyrocat-HD negative prints on VC paper, with the
comparison negatives developed to the same CI (as measured by Blue
mode of densitometer) I have made the comparison using Arista VC
paper and would be happy to send you a copy of curve, or perhaps best
post it to the technical gallery on apug.org. There is a very
distinct and clearly visible difference in the look of the curve,
even when the negatives are developed to the exact same CI, which
should surprise no one since so many people have already commented on
the difference.
Sandy
>At 09:07 PM 12/26/2004 -0500, you wrote:
>>Howard,
>>
>>I won't be able to do that for a while because of travel plans. What
>>does one need to make this kind of measurement, a spectrophotometer?
>
>
>Yes, a vis/uv spectrometer is what is needed. I do not have one available
>since I moved to New Mexico. That is why I thought of the Clemson
>Chemistry department. I will do some checking after school starts up in
>Santa Fe to see if one of the local schools may have the needed equipment.
>Will let you know, and if all else fails, will probably see you at APIS or
>at PhotoArts Santa Fe, July 8-17, 2005 (shameless commercial plug).
>
>
>
>
>=============================================================================================================
>To unsubscribe from this list, go to www.freelists.org and logon to
>your account (the same e-mail address and password you set-up when
>you subscribed,) and unsubscribe from there.
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
