Ludovic Stefanicki’s Recommendation for Rollei Infrared 400

Developer

Dilution

Time

Temperature

E. I.

Rodinal

1:50

12 m

20° C

3 to 6

Comments:  Gentle continuous agitation for the first minute, then 3 inversions every minute. Rollei's recommendation E.I. 25 is not working for me. I rate it between 3 and 6, and bracket +/- 1 stop. I get consistent results. I use an Infrared R72 filter.