Hi Peter,
there hardly is a objective way to compare these, only can relate some personal observations and preferences. Please take them not too seriously though, I have been called a Pentax fanboy often enough
😉
Really I like all of them! The 55mm Takumars are known to be good but imo not regarded highly enough just because they are plentiful and cheap. - which of course is not true for the f2/58mm which is one of the more rare and expensive Takumars, coveted by collectors for being the "only" normal ( 50mm abouts ) SLR lens ever made that is using the Sonnar lens scheme.
About the f2/58mm I remember once having written somewhere that all one has to do is to point it into flowers or foliage and the result will be beautiful. Hm..now looking for samples to show I realize that I don't have all that many good photos that I have taken with it. Bokeh, as is said of Sonnars, sure is beautiful and that makes for good flower pics:
(pics removed due to posting limit)
Now thinking of it I'd say it must be specially good for portraits! - though I have hardly done any, here are two ( on Ricoh GXR M )
taken with a rare Takumar f2/58mm that is for sale by
andreas, on Flickr
taken with a rare Takumar f2/58mm that is for sale by
andreas, on Flickr, Takumar f2/58mm, Ricoh GXR M, Vietnam 2013
( I kept the title as shown on my flickr that says that this copy is for sale. Years ago I used to go to Japan every year and, besides visiting my lovely girl friend then, had been hunting Takumars for myself and to resell too. Now I do not remember if I still have a copy for sale or not, probably, but if so it's back in Austria while I just arrived in Bali )
As mentioned above I very much like all the 55mm Takumars too! Specially the early versions and that because of their individual, a bit different color renditions. Member mpersons13 had noted that too, see post 244:
https://www.rangefinderforum.com/forums/showpost.php?p=2865015&postcount=144
there also seen some samples taken with the Auto Takumar f2/55, the earliest of the 55mm Takumar ( together with the Auto Takumar f2.2/55mm which is said to be identical but made slower to have a cheaper alternative on the market ). A manual lens freak to whom I had once recommended the Auto Takumar f2/55 then had tested it on a "FF" camera and told me that it was, together with another, not a lens made by Pentax and I don't remember which, the sharpest across the frame of all!
Next came the Auto Takumar f1.8/55 in "zebra" design. If I am not mistaken Carl Zeiss Jena lenses then came in zebra designs and Pentax may have imitated that
Auto Takumar f1.8/55mm 'Zebra' by
andreas, on Flickr, taken with Macro Takumar f4/50mm on Pentax K-x
Untitled by
andreas, on Flickr, "zebra" Auto Takumar f1.8/55mm, Pentax K-x
even though it is said that strong outer line of the oof highlights is "not good bokeh", I'd say it's lovely bokeh too
🙂
next came a version of the f1.8/55mm that was the first one that came in a body similar to all later Takumars. Color rendition may have changed to more "neutral" or "balanced".
Nevertheless I consider the colors rendered by later Takumars as very beautiful too
🙂
To mention that, when adapted to mirrorless cameras, I do like the position of the aperture ring "at the front" of the lens as on the earlier Takumars, makes it easier to grab it "blindly"
Auto Takumar f1.8/55mm ( late version ) by
andreas, on Flickr, taken with preset Takumar f2.8/105mm on Pentax K-x
a sample taken on Sony A7:
Untitled by
andreas, on Flickr
then came the Super Takumars, the f1.8/55:
Super Takumar f1.8/55mm by
andreas, on Flickr, taken with Nikkor-S f1.4/50mm on Pentax *istDs
a sample taken on Pentax *istDs:
Untitled by
andreas, on Flickr
The 55mm S-M-C Takumar I do not have, but the again later SMC that is said to be identical optically, incl. the coating, body had changed a bit, now rubberized focus ring instead of fully metal body:
SMC Takumar 55mm f1.8 by
andreas, on Flickr, taken with Auto Yashinon-DX f1.7/50mm
on Pentax *istDs:
mandi by
andreas, on Flickr
best greetings from Bali,
andreas
P.S.: later edit:
oh, and I just remember. I had done sharpness shootouts of 32 old, manual "normal" lenses including all the above
on APS-C sensor with Sony NEX5n:
https://www.flickr.com/photos/kuuan/collections/72157632455712332/
and on Sony A7 "FF" 35mm sensor:
https://www.flickr.com/photos/kuuanslenstests/collections/72157670921126335/