Hello folks,

Does anyone of you have data on developing efke 100 sheet film at its nominal speed in Agfa Rodinal? At digitaltruth.com, I only found sheet film data about *push* processing at 200 (14 minutes in 1+50)resp. 400 ASA (24 minutes in 1+50) - the times equal the pushing times for 35mm -, and there is 35mm data on slightly pull processing it at 80 ASA (5 minutes in 1+25). Can I use that 35mm data for sheet film? Do you have experience about processing it at 100 ASA (say 6 minutes in 1+25 as a guess)?

Cheers,

-- David Haardt (david@haardt.net), June 18, 2001

Answers

Hi David, 6 to 8 at 1:25 might be a good guess, but I'd think that would be for a fairly rainy day. 1:50 or 1:75 for a landscape at 8 to 12, but I'm guessing. Best, David

-- david clark (doclark@yorku.ca), June 18, 2001.

Start with times for a comparable film like Agfapan 100, although Efke is likely to have fuller emulsion speed compared to Agfapan.

-- David Stein (heavelyuao@mailexpire.com), June 18, 2001.

You might try conducting your own film speed test, and then you would know the correct speed and procedure for your equipment. Pat

-- pat krentz (patwandakrentz@aol.com), June 18, 2001.

I used to develop their 120 roll film in Rodinal (1:100) for 11 minutes at 75 degrees to obtain an EI of 100. That was 10 years ago.

-- Ed Buffaloe (edb@unblinkingeye.com), June 19, 2001.

David,

I just got my shippment from Fotoimpex in Berlin. Their website has these developing times etc for PL100 http://www.fotoimpex.de/Technik/Entwicklertab/entwicklertab.HTM

Cheers and Good Luck!

-- Martin Reis (mreis@tafelmusik.org), July 26, 2001.