Developing time for 4x5 FP4 with XTOL in BTZS Tubesgreenspun.com : LUSENET : Large format photography : One Thread
Having a bit of trouble finding a starting time to develope some 4x5 Ilford FP4 using XTOL 1:1 in BTZS Tubes, Any help would be appreciated. Thanks to all, Billy
-- Ngyuen "Billy" Kok (firstname.lastname@example.org), January 21, 2002
I have homemade tubes which only hold about 60ml and I find I get more reliable results using full strength Xtol rather than 1:1 in these tubes. My times with *full* strength (at 20C with constant agitation):
Measured: 4.5 min N-0.5 with EI 50
Estimated: 5 min for N with EI 64; 6 min for N+1 EI 80; 8 min for N+2 EI 125.
I never tried to go lower contrast than N-.5 because of the very short processing times that would require.
-- Eric Pederson (email@example.com), January 22, 2002.