I have just started using a 294MC instead of a DSLR.
I used to take my flats using the AV mode of the DSLR and that worked perfectly. I have a flat field generator that produces a nice even light source.
I have understood that I should use at least 4 second exposure for my flats with the 294MC. I have turned my flat field generator down to a minimum but it is still too much. In order to dim it further I could use a tee-shirt or a piece of paper. Which would give me the best flats?