I intend to use my Bronica SQ-am in very low temperatures and 40 centigrades below the freezing point is not uncommon here in northern Norway where I live.
I'm worried about film getting brittle and tear or crack when the motor winder advances frames in these temperatures, and I'm wondering if its possible to advance the film manually and very carefully at low speed by using the advancing knob located in the film-back. Is this possible at all, and will it cock the shutter?
I have experience with advancing film manually with my ETRSi in 20 centigrades below zero, and I noticed very small cracks in the edge of the film roll, so 40 below really worries me taking into account that the SQ-am winds the film rather fast.