Собрал 55-ки с одинаковой оптической схемой (6 элементов в 5 группах); отличаются друг от друга символически: внешний вид, габариты, вес, качество просветления, количество лепестков диафрагмы, МДФ и максимальное увеличение, минимальная и максимальная диафрагма. Картинка, в связи с неизменной оптической схемой, видимо будет отличаться гомеопатически - в силу небольших конструктивных различий. Может и тема оживёт - владельцев-то много наверняка, а открывать новую ветку по каждому ... SMC/S-M-C/Super-/Auto-/Takumar 55mm F1.8 1: Takumar, the original variant: Takumar 55mm F1.8 10 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJjjWeoA 2: Auto-Takumar, first version: Auto-Takumar 55mm F1.8 (ver. 1) 10 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJk0ACur 3: Auto-Takumar, early second version. Despite the name Auto-Takumar this lens has a fully automatic diaphragm like the later Super-Takumar lenses. The aperture ring turns the opposite way compared to all later lenses: Auto-Takumar 55mm F1.8 (ver. 2 early) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJkUuuek 4: Auto-Takumar, late second version. Despite the name Auto-Takumar this lens has a fully automatic diaphragm and looks like the later Super-Takumar. The aperture ring turns the opposite way compared to all later lenses: Auto-Takumar 55mm F1.8 (ver. 2 late) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJkffYfL 5: Super-Takumar, first version. This version can be recognized on its fine ribs on aperture ring and that the smallest F-stop (F16) is to the right on the ring: Super-Takumar 55mm F1.8 (early) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJkrwQ8G 6: Super-Takumar, second version. This version can be recognized on its fine ribs on aperture ring and that the smallest F-stop (F16) is to the left on the ring: Super-Takumar 55mm F1.8 (ii) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJl3I2UO 7: Super-Takumar, latest version. This version has coarse ribs on aperture ring: Super-Takumar 55mm F1.8 (late) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJlDm21j 8: Super-Multi-Coated Takumar: Super-Multi-Coated Takumar 55mm F1.8 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJlQee28 9: SMC Takumar. This final version has a rubberized focus ring and open aperture metering with the Spotmatic F, ES and ESII: SMC Takumar 55mm F1.8 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html#ixzz5DJlgSsvK И ближайшие "родственники", но уже чуток темнее: Auto-Takumar 55mm F1.9 10: The F1.9 55mm lens only existed in the Auto-Takumar series and it is a very rare lens. Auto-Takumar 55mm F1.9 10 blades Read more at: https://www.pentaxforums.com/lensreviews/Auto-Takumar-55mm-F1.9.html#ixzz5DJmyEuPa SMC/Super-/Auto-Takumar 55mm F2 11: Auto-Takumar: Auto-Takumar 55mm F2 10 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJnU7ckW 12: Super Takumar, first model, early version: Fine ribs on aperture ring; aperture ring turns the "wrong" way: Super-Takumar 55mm F2 (model 1 early) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJnlNw00 13: Super Takumar, first model, late version: Fine ribs on aperture ring; aperture ring turns the "correct" way: Super-Takumar 55mm F2 (model 1 late) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJo14mnC 14: Super Takumar, second model, early variant: Coarse ribs on aperture ring: Super-Takumar 55mm F2 (model 2 early) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJoIT231 15: Super Takumar, second model, late variant with open aperture metering: Super-Takumar 55mm F2 (model 2 late) 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJoZNsZO 16: SMC Takumar, rubberized focus ring, open aperture metering: SMC Takumar 55mm F2 6 blades Read more at: https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJomJisP Auto-Takumar 55mm F2.2 17: This is the second and last 55mm F2.2 lens produced by Pentax. It features a semi-automatic diaphragm. Auto-Takumar 55mm F2.2 10 blades Read more at: https://www.pentaxforums.com/lensreviews/Auto-Takumar-55mm-F2.2.html#ixzz5DJpy0cSl
Вот такой: Auto-Takumar 55mm F2 - 10лепестков (https://www.pentaxforums.com/lensreviews/SMC-Super-Auto-Takumar-55mm-F2.html#ixzz5DJnU7ckW)