Exposure to frosted bulbs?

[P3D Dr. George A. Themelis <DrT-3d@xxxxxxxxxxxxxxxx>]

Dan Wenz wrote:

>I made heavy use of my 1967 Gossen Luna Pro, and ended up with good
>(exposure-wise) shots I doubt I'd have without the trusty meter. In other
>words, start without exposure help if you want, but don't forgo use of an
>inexpensive meter if you're having a problem, after suitable
>experimentation, obtaining a correct exposure. 

That sums it well.  No question that you need a light meter to anything
that is not close to "sunny day"... especially indoors.

BTW, did anyone catch the error here:

>I can do that in my head... I don't need the meter for that...
>f5.6 1/100 -> f11 1/50 -> f22 1/25... What's the big deal? ;) ;) ;)

That sequence is not correct... The apertures change 5.6 -> 8 -> 11 -> 16.
It has to do with the law of squares of something ;)

George Themelis - had too many frosted bulbs for desert tonight...


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