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Pentax 645D
Pentax 645D

Pentax-A 200mm f/4

How good is the manual focus Pentax-A 200mm f/4? My first attempt was met with abject failure, since I found it impossible to focus accurately either by eye, or using the autofocus assist function.

I returned to this scene another day when the lighting was brighter, and I worked hard (by eye) to get just-right focus. The results follow below.

Test scene

This is the entire frame as shot, crops follow.

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Pentax 645D + 200mm f/4, test scene

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