I felt really, really bad, and guilty. Perhaps I purposely underestimated my collection, so that I could continue buying them without too much guilt. In any case, I broke down the lenses by groups and found that the most duplicated lens was the Pentacon 50mm f1.8, with 5 copies (6 if includes the Meyer-Optik Orestor, essentially the same lens). Perhaps, reviewing and writing this would help me stop and think the next time I see another normal lens.
The German Origin -- 45 count:
Row one, from left to right:
- Pentacon Multi Coated 50mm f1.8 -- M42
- Pentacon Multi Coated 50mm f1.8 -- M42
- Pentacon Multi Coated 50mm f1.8 -- M42
- Pentacon Multi Coated 50mm f1.8 -- M42
- Meyer-Optik Gorlitz Orestor 50mm f1.8 -- M42
- Pentacon 50mm f1.8 -- M42
- Schneider-Kreuznach Exida-Xenar 50mm f2.8 -- M42
- Carl Zeiss Jena Biotar 58mm f2 -- M42
Row two, from left to right:
- Domiplan 50mm f2.8 -- M42
- Domiplan 50mm f2.8 -- M42
- Domiplan 50mm f2.8 -- M42
- Meyer-Optik Gorlitz Primotar 50mm f3.5 -- EXA
- Carl Zeiss Jena Pancolar 50mm f2 -- EXA
- Carl Zeiss Jena Pancolar 50mm f2 -- EXA
- Kilfitt Makro Kilar D 40mm f2.8 - EXA
Row Three, from left to right:
- Carl Zeiss Planar 50mm f1.4 HFT -- QBM
- Rollei Planar 50mm f1.8 HFT -- QBM
- Rollei Planar 50mm f1.8 -- QBM
- Schneider-Kreuznach Retina-Xenon 50mm f1.9 -- DKL
- Schneider-Kreuznach Xenon 50mm f1.9 -- DKL
- Contax Carl Zeiss Tessar 45mm f2.8 -- CY
- Voigtlander Nokton 40mm f1.4 -- Leica-M
Row four, from left to right:
- Meyer-Optik Gorlitz Primoplan 58mm f1.9 -- M42
- Meyer-Optik Gorlitz Primoplan 58mm f1.9 -- M42
- Carl Zeiss Tessar 50mm f2.8 -- M42
- Carl Zeiss Tessar 5cm f3.5 -- EXA
- Carl Zeiss Tessar 5cm f3.5 -- EXA
- Carl Zeiss Tessar 45mm f2.8 -- Fixed from Contaflex
- Staeble-Kata 45mm f2.8 -- L39 (non-standard)
- Carl Zeiss Jena Biotar 5cm f2 -- EXA
Row five, from left to right:
- Schneider-Kreuznach Retina-Xenon 50mm f2 -- Fixed from Kodak Retina
- Schneider-Kreuznach Retina-Xenon 50mm f2 -- Fixed from Kodak Retina
- Schneider-Kreuznach Xenon 50mm f2 -- From Diax IIb
- Rodenstock Heligon 50mm f2 -- From Balda folder camera
- Leidolf Weztlar Triplon 5cm f2.8 -- Fixed from folder camera
- Steinheil Munich Cassar VL 50mm f2.8 -- From folder camera
- Schneider-Kreuznach Radionar 5cm f2.9 -- From folder camera
- Rodenstock Trinar 45mm f2.8 -- From folder camera
Row six, from left to right:
- Voitlander Color-Lanthar 42mm f2.8 -- Fixed from Voigtlander rangerfinder camera
- Voitlander Lanthar 50mm f2.8 -- Fixed from Voigtlander rangerfinder camera
- Voitlander Color-Skopar 50mm f2.8 -- DKL
- Schneider-Kreuznach 50mm f4.5 -- Enlarging Lens
- Rodenstock Omegaron 50mm f3.5 -- Enlarging Lens
- Rodenstock 50mm f2.8 -- Enlarging Lens
- Schneider-Kreuznach Componar 50mm f4.5 -- Enlarging Lens
- Leitz Wetzlar 5cm f3.5 -- Enlarging Lens
The Fast and the Curious -- 9 count:
Row one, from left to right:
- Canon EF 50mm f1.2L -- EF
- Canon nFD 50mm f1.2L -- nFD
- Canon FD 55mm f1.2 S.S.C -- FD
- Canon FL 55mm f1.2 -- FL
Row two, from left to right:
- JML TV Lens 50mm f0.95 -- C-Mount converted to E-Mount
- Canon FL 58mm f1.2 -- FL
- Kowa 50mm f1.2 -- Projection Lens
- Kodak Ektagraphic 50mm f1.2 -- Projection Lens
- Lomo 50mm f1.2 -- Projection Lens
The Russian Connection -- 11 count:
Row one, from left to right:
- Zenith Helios-44M-4 58mm f2 -- M42
- Helios-44M 58mm f2 -- M42
- Helios-44M 58mm f2 -- M42
- Helios-44-2 58mm f2 -- M42
Row two, from left to right:
- Arsat 50mm f2 -- Nikon F
- Helios-103 53mm f1.8 -- Kiev/Contax
- Helios-103 53mm f1.8 -- Kiev/Contax
- Jupiter-3 5cm f1.5 -- L39
Row three, from left to right:
- Jupiter-8M 5mm f2 -- Kiev/Contax
- Jupiter-8M 5mm f2 -- Kiev/Contax
- Industar-2 50mm f3.5 -- M42
Canon Legacy -- 8 count:
Row one, from left to right:
- Canon FD 50mm f1.4 S.S.C -- FD
- Canon FD 50mm f1.4 S.S.C -- FD
- Canon nFD 50mm f1.4 -- nFD
- Canon FL 50mm f1.4 -- FL
Row two, from left to right:
- Canon FD 50mm f1.8 -- FD
- Canon FD 50mm f1.8 -- FD
- canon FL 50mm f1.8 -- FL
- Canon EF STM 40mm f2.8 -- EF
Pentax Love -- 7 count:
Row one, from left to right:
- Macro-Takumar S-M-C 50mm f4 (1:2) -- M42
- Macro-Takumar 50mm f4 (1:1) -- M42
- SMC Pentax-A 50mm f2 -- K-Mount
Row two, from left to right:
- SMC Takumar 55mm f1.8 -- M42
- SMC Takumar 55mm f1.8 -- M42
- Super-Multi-Coated Takumar 55mm f1.8 -- M42
Row three:
- SMC Pentax-M 45mm f2.8 Pancake -- K-Mount
The [Mostly] Japanese Club -- 15 count:
Row one, from left to right:
- Auto Chinon Multi-Coated 55mm f1.4 -- M42
- GAF 55mm f1.4 -- M42
- Auto Chinon 55mm f1.4 -- M42
- Auto Chinon 55mm f1.7 -- M42
- Auto Chinon 55mm f1.7 -- M42
Row two, from left to right:
- Vivitar 50mm f1.9 -- M42
- Vivitar VMC 50mm f1.7 -- M42
- Olympus F.Zuiko 50mm f1.8 -- M42
- Mamiya-Sekor 55mm f1.4 -- M42
- Sony 50mm f1.8 -- E-Mount
Row three, from left to right:
- Yashica Yashinon 50mm f1.9 -- M42
- Yashica ML 50mm f1.9 -- CY
- Nikon Series E 50mm f1.8 -- F-Mount
- Auto Topcor 5.8cm f1.8 -- Topcor/EXA
- Haiou-64 (Seagull) 58mm f2 -- MD
The Minoltas -- 8 count:
Row one, from left to right:
- Minolta Rokkor-X PG 50mm f1.4 -- MC/MD
- Minolta Rokkor-PG 58mm f1.4 -- MC/MD
- Minolta Rokkor-X 50mm f1.4 -- MD
Row two, from left to right:
- Minolta Rokkor-PF 55mm f1.7 -- MC/MD
- Minolta Rokkor-PF 55mm f1.7 -- MC/MD
- Minolta Rokkor-PF 55mm f1.7 -- MC/MD
Row three, from left to right:
- Minolta Rokkor-QF 50mm f3.5 macro -- MC/MD
- Minolta Rokkor-X 45mm f2 -- MD
The Family Portrait -- 123 count:
This picture includes some of the lenses not in any of the group pictures above. This does not include 2 Xenar 45mm f2.8 DKL and a Leica-R 50mm f2 which I couldn't find (and possibly others as well). Also some 50mm lenses still mounted to the cameras.
