Ok, so I've left my run a bit late to be practicing for the transit, but I did finally get my film mounted last week and managed a few practice shots through and between clouds this afternoon. I have about a 7" aperture of film on my 8" newt, with T-ring/MPCC on the Canon 450D. I've seen people using ISO 100 and 1/100 and faster. 1/500 seemed a good compromise this afternoon.
I guess my real question though is should I shoot for a dim image expecting to have to stretch it later, or shoot for final expected "brightness" (or a tad less) on the Quick Preview window as I go?
Any recommendations appreciated.
P.S. I've also got a Toucam - should I be collecting video and stacking in preference to the DSLR?