Re: [OM] Various lens sharpness numbers at various apertures

[Ingemar Uvhagen]

gma wrote:

> Also, rule of thumb: "A lens will be at its' sharpest when stopped down
> 2 to 4 stops from wide open." So an f/2 lens could be expected to be
> sharpes at f/4 and f/5.6 and f/8.

Thanks for that "rule of thumb"!
Learning all the time...

--
Regards/
  Ingemar Uvhagen
  Gislaved, Sweden





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