Forum: Pentax SLR Lens Discussion
04-16-2017, 05:17 AM
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It depends on what you are doing overall with your lenses.
I would keep all in in one mount if these are the only 3 lenses you have.
As for the individual lenses, I have the K105 and it is soft until f5.6 but is a great portrait lens because of this, optically I think the K is similar to the M42 lenses , the M100 is quite different
If the super tak 1.4 is the 8 element version I would keep it. But even if not f1.4 gives you something
As a result I would lean to the m42 lenses, but then I have both a K kit and an M42 Kit so keep them all
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