HP5+ rated @ 200 in Rodinal??

[TPPhotog]

Yep, you've gussed it I've been playing again but I can't find any times for HP5+ rated @ 200 in Rodinal.

From what I've found already it looks like it will need a 1+100 dilution, but your valued experience and suggestions are once again very welcome.

Kind regards Tony

 

[titrisol]

That is a 1 stop overexposure?
IMHO If I were using 11min @1+50 (as per digitaltruth) for 400, I'd go with 8 minutes @1+50 for 200

A quick search in google showed this:

Dead Link Removed
Chris Waller , aug 20, 2004; 04:41 a.m.
I used to shoot HP5 at 160 ASA and dev in Rodinal, 1:50, 20 C, 9 minutes. I downrated the film to reduce contrast (I was using a condenser head at that time). I have enlarged to 16x12 from 35mm negs and while grain was visible it was, as Lex noted, an attractive grain, very sharp and 'crystalline'. I have also shot 120 HP5, devved in Rodinal at 1:50 and obtained excellent results. For my own tastes I find that manufacturers' quoted development times give too much contrast.

 

[gainer]

AGFA considers 0.65 to be the normal contrast index. HP5+ will not reach that CI in Rodinal 1+50. Their table for HP5+ in Rodinal 1+100 specifies reduced CI.

Most of us consider 0.65 to be on the high side of normal, especially those who use condenser enlargers.

I have found the maximum CI of HP5+ in Rodinal 1+50 to be about 0.61. If you try to go beyond that, you get more base fog.

 

[titrisol]

Oh, 0.65 Ci is kinda high.
Even though HP5 is a low contrast film, 0.61 should be good enough.
I've tried (anmd enjoy) APX-100 in Rodinal with the times they give for CI 0.55

 

[TPPhotog]

Hello folks,

Sorry I've not been back earlier but not felt too well today due to ye olde dam brain chemicals

I souped the HP5+ at 20C for 8 mins 1+50, filled and inverted during the first 30 seconds and then one inversion every 30 seconds. They are still drying at the moment but dry enough to see they are quite contrasty and as far as I can tell have shadow detail and no blown highlights. Might be a few days before I'm up to printing but I think they are very nearly nailed.

Many thanks for the suggestions and the additional information posted here. I'm frequently pushing HP5+ up to 1600 but for some reason never got around to pulling it. Shows what a good effect being here on APUG has on me

Kind regards Tony

 

[voceumana]

www.digitaltruth.com has "The Massive Development Chart" and indicates Rodinal 1:100 for HP5+ at EI 160, develop for 20 minutes for "low contrast".

Charlie