Does this also hold for modern, full-frame 35mm format lenses? Or does
this only hold for smaller image sizes?
Chuck Norcutt
Moose wrote:
>
> Many current mid to high end zooms seem to have optimum apertures at or
> near wide open. It used to be that you could be fairly sure that the
> "sweet spot" of a lens would start about 3 stops down from wide open and
> go for a couple of stops beyond. Now, the optimum aperture is usually
> only a stop or so down and occasionally is wide open. And the sweet spot
> is from wide open to seldom more than three stops down.
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