Cytat:
M42 (Pentax Screwmount): 45.46mm
Info: The most popular mount right now, some lenses are highly overpriced, really good in 50-135mm range. Can't really recommend anything wider than 35mm. You can even use darkroom enlargers for some super-macro.
Best lenses:
Almost any 50mm will be pretty good if you will get a nice copy, some of them are exceptionally good even now.
Takumar - everything from them will be great. Next to Zeiss, highest prices on the market, 50 1.4 is considered as the best 50mm on M42 and one of the best 50mm ever made. SMC versions are the best - newest and much better coating, although Super version are still worth looking into.
SMC 24 2.8
SMC 50 1.4
SMC 50 1.8 SMC 55 1.8
SMC 135 2.5
SMC 85 1.8
Super Takumar 85 1.9
Fujinon - almost as good as Takumar.
EBC 50 1.8
Carl Zeiss Jena - expensive, well build, amazing quality. Comes with different markings and colors, the best are with "MC" in the name for multi coating. Can't go wrong with them.
Carl Zeiss Jena Flektogon 35 2.8
Carl Zeiss Jena Pancolar 50 1.8
Carl Zeiss Jena Biotar 58 2
Carl Zeiss Jena Sonnar 135 3.5
Yashica - available on C/Y and M42, great lenses, similiar in build and IQ to Zeiss Jena.
Yashinon 50 1.7 ML
Porst - German rebrand of some popular lenses.
55 1.2 (!!!)
Helios - cheap copies of some Zeiss' models, weird, swirly bokeh.
44-4, 44-7 etc. - 58 2.8 - copy of Zeiss Biotar, really interesting lens, known for bokeh.
40-2 - 85 1.5 - portrait beast, sick prices on ebay, production of this lens started again few weeks ago, new version is sold two times cheaper than the ebay 30 years old version...
Jupiter - old russian lenses, considered as pretty good, especially the longer ones.
Jupiter 37A 135 3.5
Jupiter 21M 200 4
Tair - ??
Tair 11A 135 2.8 - bokeh
Mir - good old Russia.
Mir-1V 37 2.8
Telezenitar - ??
Telezenitar APO 135 - considered as the best 135mm available on M42.
Pentax K: 45.46mm
Info: Same lenses as for M42 only different adapter is needed. In M42 mount thet are called SMC Takumar so it's basically the best you can get.
Best lenses:
Same as M42, named as "Pentax" instead of "Takumar".
Contax/Yashica (CY): 45.5mm
Info: Not as popular as M42 which is good for prices. Zeiss made some amazing glass for Contax, better than the M42 versions, marked as T , contuinued until now on modern mounts.
Best lenses:
Yashica 50 1.7 ML
Zeiss Planar 1.4 T *
Zeiss Distagon 35 1.4 T *
Zeiss Vario-Sonnar T 35-70 3.4
I could basically list all of them.
Olympus OM: 46mm
Info: Highly underrated manual lenses, the Zuiko series is considered to be very, very good. Some of them are still expensive.
Best lenses:
Zuiko 50 1.4
Zuiko 50 1.8
Zuiko 28 2.8
Zuiko 100 2.8
Zuiko 200 4
Nikon F: 46.5mm
Info:
Manual glass from Nikon is considered as great, prices are high. Can mount on new Nikon DSLRs.
Best lenses:
105 2.5 AI-S, AI, any pre-AI
Leica R (SLR): 47mm
Info: Expensive! Not really sure if worth investing.
Best lenses: 50 2
Mamiya 645: 63.3mm
Info: Medium format, ???
Best lenses: ???
Hasselblad V-Monut: ??mm
Info: Medium format, xpensive, heavy and big, IQ??
Best lenses:
Hasselblad Makro-Planar 120/4 CF T*
??
Samyang lenses
Info: New brand of Korean lenses, exceptional quality, incredibly low price. Actually much better than almost any stuff I mentioned here, although more expensive.
Best lenses:
8 2.8 fisheye
14 2.8 IF ED UMC Aspherical
85 1.4 IF MC Aspherical - often compared to Canon 85 1.2L 35 1.4 - often compared to Canon 35 1.4L
Voigtlander lenses
Info: Really good pancake, wide angle and pretty interesting macro-portrait lens. Good build quality, high prices.
Best lenses:
20 3.5 Color-Skopar
40 2 Pancake
90 3.5 Macro
Carl Zeiss ZE lenses
Info: Very expensive, all about quality, 50 1.4 is actually considered as not as good as the rest.
Best lenses:
50 2 Macro-planar - pretty much the best 50mm you can get
Basically any other lens
Any other mount/company I missed?