Saturday, April 15 2006, 8:56 PM
EKFE 5x7
Well, where do I start? This one took a bit of thinking and working. I first tried using HC110 but the shadow detail was just horrible so changed dilution but still no dice, so after a few test I decided not to waste any more film and use a different developer. I ended up using Rodinal and that seem to be the ticket.
I ended up with a 1:50 dilution of Rodinal, but I learned a very important thing, and that is I need at least .7 ml of solution for every 20 sq in (1 4x5 sheet) of film. To play it safe though, I will use at least 1 ml or very close to it.
For 5x7 I will use the following dilutions with Rodinal;
# Sheets Water ML Chem. ML Chem. Per Sheet
1 220 4.3 (4) 4
2 220 4.2 (4) 2.15
3 300 5.8 (6) 1.96
4 400 7.8 (8) 1.96
5 500 9.8 (10) 1.96
6 510 10 (10) 1.67
I am not sure if I can use the expert drum with 6 - 5x7 sheets, as I don't know if there is enough developer to be able to give the proper results. So I will not risk it and just use 5 sheets max with the drum. Better to be safe than sorry.
After much testing I finally nailed the film down and to my surprise the EI is only 40. I was really hoping it would have been a faster film.
Developing time was 9 min 45 sec in Rodinal 1:50 at 20C with a 5 minute water pre rinse and a 1 minutes water stop bath in a Jobo with lift using a Expert Drum.
Zone 1 reading; .11, just perfect.
Zone 8 reading; 1.2, and I am in heaven.
I will get my N-1, N+1 and N+2 dialed in later as it took me forever to get this dialed in just for N.
Conclusion;
Efke 100 rated at 40
Rodinal 1:50; 9 min 45 sec; 20C; 5 min prewash; 1 min water stop bath
