-----Original Message-----
From: Gareth Knight <gknight@xxxxxxxxxxxxxxxxxxx>
>Hi,
>
>If f8, is really f7.7, this makes quite a difference to me. I have a
>nice Sekonic light meter, which returns its readings in whole f stops
>plus a decimal increment. For instance, it might display 1/125 and
>f8.7. If I'm using slide film, which has such a small margin of error
>anyway, I would like to know that, in this instance I can safely set
>the lens to f8 (since it is actually f7.7) rather than round up to
>f11. In this case, rounding up to f11 might have produced
>underexposure outside the slide film latitude.
>
>Could someone produce a true f-stop table ?
>
This requires a lens marked in T-numbers. This should revive the discussion
a bit.
Doug
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