>: Does anyone know how many stops of error is produced by using a *clear*
>: focusing screen, like the 1-5, 1-6 and 1-7, in an OM-1 or OM-2 camera?
Does
>: it vary with lens focal length??
>
>A small test with the 1-7 in the OM-1 and OM-3, using the 300mm/F4.5,
reveals
>that using the meter of the OM-1 will underexpose with about 3 stops. This
>means
>that you can compensate with the dial setting (3 stops slower) when you're
>using
>200 ASA film or faster.
Thanks Hanz. So I set the ASA dial to "25" when I'm using ASA200 speed film?
--
Be Seeing You.
Dirk Wright
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