- Joined
- Jan 30, 2005
- Messages
- 648
- Format
- Multi Format
Use a pyro developer, forget the Rodinal. The pyro stain will increase the actinic DR of the negative without having to resort to long development times.I've been trying to kick HP5+ (8x10) into action with a bit more contrast. So far Rodinal at 1:25 for 8 minutes with constant agitation is not enough, even using a contrast agent (potassium dichromate). My next run will be in the region of 12 minutes. If that doesn't give me what I'm after I'll test Delta 100.
I've seen the wonderful work of Ian Leake who uses HP5+ developed in Rodinal and they are just beautiful.
Use a pyro developer, forget the Rodinal. The pyro stain will increase the actinic DR of the negative without having to resort to long development times.
Don, I have but the exposure time for Pt/Pd under UV light source is too long. The stain is absorbing too much UV.
For my projection printing I do use PMK pyro almost exclusively for all my film processing.
How long is too long for UV exposure?
Don't use PMK. Pyrocat-HD works much better, IMO.12 - 15 minutes for my PMK pyro negatives compared to 3 -5 minutes for my Rodinal/Ilfosol 3 developed negatives and Polaroid 55 negatives.
Too much/excessive exposure can lead to 'bronzing' of the blacks in Pt/Pd printing which is happening with the pyro negatives.
12 - 15 minutes for my PMK pyro negatives compared to 3 -5 minutes for my Rodinal/Ilfosol 3 developed negatives and Polaroid 55 negatives.
Too much/excessive exposure can lead to 'bronzing' of the blacks in Pt/Pd printing which is happening with the pyro negatives.
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