Agfa Copex Rapid 50 - developer and ISO

[blee1996]

Hi

I recently tried one 120 roll of Agfa Copex Rapid (exposed at ISO 50) and Kodak Technical Pan (exposed at ISO 25) each in the same pot of TD-3 developer (1:1:8, 14 min at 70F). The Kodak TP looks a bit thin but very scannable, but the Copex came out almost totally transparent with very faint images. I did under-expose both a bit, due to lack of compensation for bellows extension. But I'm surprised that the negatives looks so different.

Now my question is: what kind of ISO do you guys get from Copex Rapid with your developer? I have the following other developers to try next:

1) Rodinal: 1+100 and 18 min at 68F ?
2) Adox FX-39 II: 1+19 and 9 min at 68F ?
3) Clayton F76+: 1+19 for 9 minutes at 68F ?

Thanks!

 

[loccdor]

I used 510-pyro 1+300 1 hour stand development. It was still quite contrasty but would work for overcast or until about sunny f/11 days. I shot it at 50. Negatives weren't thin but it's pushing the brightness range.

Rodinal might work but you should consider 1+150 or 1+200 and extending time and reducing agitation.