In a message dated 11/03/2000 11:20:54 AM Eastern Standard Time,
jowilcox@xxxxxxxxxxxxxxxxxxx writes:
> Based on 60 watts/second, is there a way other than brute empirical testing
> to
> ballpark a guide number for this type of light source?
I would imagine the guide number would be highly dependent on your location -
reflectivity of walls and ceilings, etc... Even regular flashes are affected
by this to some extent, but a bare bulb would probably be affected much more
so.
I suspect you are just going to need to run some tests in different venues.
Why on earth wouldn't they set it up for TTL? (rhetorical question).
Paul Schings
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