PMK+ but no stain

[Tor-Einar Jarnbjo]

Glad my guess seems to have helped.

Yes, thanks a lot for even just suggesting something I might have done wrong and then even being spot on instead of trying to explain to me that I just don't see the stain.

The quality is not the best, but here is a picture of the negative developed in PMK with amidol (upper) and the negative developed in PMK without amidol (lower):

 

[Andrew O'Neill]

Skip the amidol.

 

[voceumana]

Pyro developed negatives are supposed to have less visual contrast than printing contrast, especially when used with graded papers. The Pyro stain provides a high contrast to the blue and near UV light to which the paper is most sensitive. The stan can mask the highlight contrast when used with VC papers--maybe an advantage or disadvantage depending upon the particular image.

 

[Alan Johnson]

Can you see any difference in the tanning between the negatives with and without amidol?
Amidol may act like sulfite and reduce the cross linking of the gelatin.

 

[Tor-Einar Jarnbjo]

Can you see any difference in the tanning between the negatives with and without amidol?
Amidol may act like sulfite and reduce the cross linking of the gelatin.

No, not really.

 

[Alan Johnson]

Since it is well known that PMK alone produces tanning with a relief image, from what you have mentioned in posts 10 and 30, there seems to be a difficulty in seeing tanning when amidol is added which makes the observations rather inconclusive.