Planning to go shoot some long exposure test rolls this weekend and wondered if anyone
could offer advice from experience shooting long exposures with an XPAN2, for reciprocity?
I've shot lots of long exposures with my digital cameras (5D3 and a6300) using Lee Big Stopper 10 ND filter,
and I've just bought a Super Stopper 15 stop ND for both full frame 100mm and the Seven5 size for my XPAN....
So using a SuperStopper 15 stop their guide says a shot that meters 1/500th becomes 1 minute...
but then reading the reciprocity of TriX it says the compensation for a 1 minute is 9 minutes (!)
which is pushing the maximum bulb exposure I can do with an XPAN2
I'd appreciate any sage advice - use TMax (with better reciprocity) instead?
I suspect the best thing I can do is to lock off a shot, and shoot half a dozen shots,
with fixed F stop & varying the exposure time all the way to maximum...
and see what works
Also intrigued by this comment:
"if you plan on doing a lot of night exposures, it can be worth your while to check out
Fuji Acros 100. There is no reciprocity effect until 120 seconds of exposure!
This means that Acros, though nominally slower, can be effectively "faster" at nightime
than some 400 speed films. Image quality is top notch."
is Acros still available?