Rodinal works great-VP has fine grain, and the edge effects work nicely. So nicely that you can get Mackie lines if you don't use a pre-soak and tilt the tank for pour-in. IIRC I used 1:75 13 min at 75 F.
Can't tell you how much time to add for the OD factor tho'
Thanks fschifano. You mention going with manf's times but in using D76 what agitation did you use - the Ed Buffalo one, the Ilford one or one in between? Given the age of the film and Ed' agitation I am inclined towards Ed's but what agitation did you go with?
Claes. Just one more question. Is your recommended development time of 9 mins for Rodinal based on 20 degrees C? John Welton's recommendation on Ed Buffalo's site is 10 mins at 22 degrees centigrade and this is based on EI 80 instead of ISO125. As exposure at EI 80 suggests that a shorter development time might be better than at ISO 125, this suggests that I should maybe go for at least the full 10 mins which is what you use for RO9 even if this is at 20 degrees centrigrade.
However knowing your temperature will help me decide by how much I should maybe go beyond 10 mins. I think that based all of the above facts I should go for at least 10 mins and maybe 10% more which is 11 mins.
Thanks
pentaxuser
It can't be any earlier than about 1957, since that's when Verichrome Pan replaced Verichrome.
There may be a graphic date code printed on the edge of the film, but there may not. The plant code is a dot somewhere in the Kodak Safety Film lettering.
The classic looking yellow paper went on for a long time. At least until the 1980's. Note the film speed -- is it 80, 100, or 125? Is the Kodak logo serif or sans-serif?
For reducing fog I came across a quote on a blog (silverbased.org) referring to a table of developing agents on page 455 from CEK Mees The Theory of the Photographic Process (1942) which he says the image to fog ratio appears generally to be around twice as good at 15 C than at 25 C.The first three negs had developed OK but had high base fog as I was warned about.
pentaxuser
You wrote, "If no-one has any answers on this combo, I might be prepared to go for some Ilford ID11 on the basis that Ed Buffalo gives 7 mins for D76 at stock and that D76 and ID11 are very similar. I noticed that the agitation times however for D76 exceed those for ID11 considerably. Ed recommends constant agitation for the first 30 secs then 10 secs every 30 secs whereas ID11 is first 10 secs then 10 secs every minute."
I haven't used Verichrome Pan for a long time, but when it was freely available I used it all the time. Back in the day, I used Microdol-X and D-76 but preferred D-76. ID-11 is functionally equivalent so that won't be a problem. Just use the manufacturer's recommended time of 7 minutes at full strength or 8 minutes diluted 1+1 at 20 deg. C.
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