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Pentax 645D
Pentax 645D

Pentax-FA 45-85mm f/4.5 @ 45mm

I’m showing only the f/11 results on this page, because I have no means of verifying focus, with the f/4.5 - f/8 results showing some haze suggesting that focus might have been off just a bit. Since most users of an f/4.5 lens are concerned with what is possible at f/11, that will have to do, because I was not successful with focusing in achieving better wide-open focus.

The Pentax SMC FA 45-85 has superior performance to the Pentax-A 45mm f/2.8, which cannot deliver sharp edges or corners.

See also the full-width crops for each aperture further below.

Crops

Test scene is the same mosaic as the other tests.

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Since 2006, Diglloyd Advanced Photography is the authoritative review and reference for DSLRs and their lenses: Canon and Nikon primarily, but also Pentax and some medium format. Reviews of key DSLRs are included, but the primary focus is on lens performance. Also included is a wealth of technique and workflow approaches.

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