----- Original Message ----- From: Joseph Tainter Subject: ISO of ca. 1900 film?
> My wife bought a modern poster printed from a ca. 1900 negative, showing > a nice ship under full sail. I am intrigued, because the ship and the > waves it is throwing are quite sharp, even though the ship appears to be > moving at a good speed (judging from the sails and waves). > > I thought film of that time wouldn't have been fast enough to stop such > motion. My impression is that ca. 1900 film had an ISO (ASA?) of about > 6. Under sunny 16, that would yield 1/25 @ f8, which is not fast enough > to stop the action in the shot. > > Just curious. Were there faster films available then? Yer probably right on the film speed. There weren't enlargers back then either. You know how a 35mm neg can look great in contact, and make a horridly soft 8x10? Same thing. William Robb
