Lex wrote:
>
> The easiest way to remember guide numbers (for me, anyway) is
> to use ASA 100
> and 10 feet as a reference point. Some flash units, like the
Note that the Olympus flash model number usually gives away the guide
number, but in meters. This means with 100 ISO film I can shoot at f4 and 8
meters with a T32 (GN=32, meters), or f2.5 (f2.8 ?) with a T20.
Wayne Harridge
Ivanhoe, Victoria, Australia
http://www.geocities.com/wayneharridge/
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|