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?
>>
Joel,
I think the issue here is that the light levels are so much more
dependent on room reflections which predominate with a bare bulb. The room
*is* the reflector and it varies widely in reflectivity and size.. If you
used the flash for outdoor photography then they could give you a GN but it
would be embarassingly low.
Regards,
Tim Hughes
>>Hi100@xxxxxxx<<
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