Pentax K 50mm lenses
Tests: Please note that these tests were made with the means at hand, not in a "scientific" way. See here.
Two SMC Pentax 1.8/55mm bought with the KX and KM.
The bayonet successor to the SMC Takumar...
SMC Pentax-M 2.0/50mm, on the MV.
To complement its "M" series bodies, Pentax released a new range of lenses, more compact.
Tests: Two excellent lenses. The 2.0/50 M series is a little weak on the edges at full aperture.
SMC Pentax-A 2.0/50mm, bought for 5€ in a second hand fair, september 14th, 2014.
The front ring (filter screw) was bent, I replaced it with another from a wreck.
The optical design is identical to that of the M; the barrel is different, with a "A" position on the aperture ring for use of "program" mode.
SMC Pentax-M 1.7/50mm, With Christophe's LX.
Like new!
SMC Pentax-M 1.4/50mm, Given by Gilles Collas (may 2018).
This lens was stored in an attic, there was fungus on all the lenses. I did what I could, now there is dust instead...