On Wed, 28 Feb 2007 10:31:22 -0500, J. C. O'Connell wrote
> what about the K/200/4 version? (sorry I havent
> done any comparisons, I no longer have any
> more m versions of that one). Based on the fact
> that the K200 is the same as the superb smct version,
> I'd bet its at least as good as the others..
> jco

I've not compared the K 200/4 to the M 200/4 despite owning the K. However a 
couple of years back I tested M 200/4, A 200/4, A 70-210/4 and FA 80-320 (at 
200mm)against each other on film, the M 200/4 appeared sharpest with best 
definition followed by a close call between A 70-210/4 and FA 80-320, both 
had slighty higher contrast than the the M 200/4 with the FA 80-320 having a 
slightly warmer rendering but were not quite as sharp. A 200/4 came dead last.

The test was carried out with a Pentax MZ-3 mounted on a tripod, using cable 
release, manual focus, Refconverter A @ 2x mag. Three apertures on each lens 
f/4, f/5.6 & F/8 in the case of the FA 80-320 the aperture in use was 
slightly smaller.

John

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