an 80B filter is recommended along with exposing the film at ISO 12 for normal results
It is mainly used in bleach baths
and designed to facilitate vertical shooting without the need for multiple setups
1250mm Focal Length
VISHAY SFH6206-2T Optocoupler, Transistor Output, 1 Channel, DIP, 4 Pins, 60 mA, 5.3 kV, 63 % Sensei SDR-7255 an 80B filter is recommendedThis is a Optocoupler, Transistor Output, 1 Channel, DIP, 4 Pins, 60 mA, 5. 3 kV, 63 % product from VISHAY with the model number SFH6206 2TProduct details No. of Channels 1 Channel CTR Min 63% Collector Emitter Voltage V(br)ceo 70V Optocoupler Case Style DIP No. of Pins 4Pins Product Range Forward Current If Max 60mA Packaging Cut Tape Isolation Voltage 5. 3kV Other details Brand VISHAY Part Number SFH6206 2T Quantity Each (Supplied on Cut Tape)