Godfrey
somewhat colored
Most older mechanical cameras are limited to a minimum shutter time of 1/1000 or 1/500 second. Many have a maximum shutter time of 1/25 sec (eg: Leica II series); Leica III have a slow speed gear train that allows timed exposures up to 1 second. For this reason, the rule of thumb I've used is to shoot films with ISO 40-100 for daylight and ISO 200-400 for indoor situations. This has been a reasonable rule of thumb since the 1960s.
Cameras with electronically timed shutters generally have an expanded range of exposure time settings and are thus more versatile about what film speeds they can use in broader circumstances.
G
Cameras with electronically timed shutters generally have an expanded range of exposure time settings and are thus more versatile about what film speeds they can use in broader circumstances.
G