Leon said:
I rated the film at 1600, but in hindsight, I think next time I'll go for 1 or 2 thirds stop slower ... I used 1:1:100 at 21 degrees for 23 mins using 1 min constant inversions then 4 inversions every 3 mins.
Decided to follow Leon's advice for 35mm Delta 3200 (EI 1600) in pyrocat and described in the quote above. Followed it exactly except I use sodium carbonate rather than potassium so used ratio of 1+5+94 using total quantities of 3ml A, 15ml B and 282 ml water.
Results are really good - there is grain as expected but it is really nice tight grain and the tonality is extremely good.
I attach a couple of scans - one of a picture (scanned neg) using this combo and one a detail from the scan (neg again) to show the grain pattern in detail.
I used spot metering placing the face on zone VI.
Bascially I think this is a really good combination and will be using again and also will try in 120 format. Thanks Leon and others on this thread. Also, you might be interested I reported back on another recent thread about pyrocat and efke 100 in 120 format.