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Until 2018, all third party lenses were manual except from the three Zeiss Touit lenses. In 2019, Viltrox introduced a 85 mm f/1.8 AF lens lacking an aperture ring. [39] In April 2020, the same company introduced a 33 mm f/1.4 lens with an aperture ring. Two more Viltrox lenses, 23 mm f/1.4 and 56 mm f/1.4, are announced for 2020. [40]
Brand Ref. Model Intro. Focal Length Aperture Opt. Stab. Wgt Filter Size ⌀ Len. Min Focus Magnification Wide Angle Tele photo ; Min Max Max Min Max Min
The FTZ adds 30.5 mm to the length of the attached lens, which is the difference in flange distance between the Nikon F-mount (46.5 mm) and the Z-mount (16 mm). Nikon FTZ II: Same performance as the FTZ, [ 30 ] but without the integrated tripod foot for easier vertical shooting with the Z 9.
Sony NEX-5 E-mount. The E-mount is a lens mount designed by Sony for their NEX ("New E-mount eXperience" [1]) and ILCE series of camcorders and mirrorless cameras. [2] The E-mount supplements Sony's α mount, allowing the company to develop more compact imaging devices while maintaining compatibility with 35mm sensors.
Minolta AF 100–200 mm f /4.5, typical of original lens styling, with narrow straight-ribbed focusing ring at front, distance window, diagonal rubber-ribbed zoom ring While most auto-focus lens designs were new developments, some optical constructions were derived from Minolta SR-mount lenses .
The M system has an 18 mm flange focal distance (compared to 20 mm for RF and 44 mm for EF and EF-S) and a 47 mm throat diameter (compared to 54 mm for EF, EF-S, and RF). As it is designed for use with an APS-C -sized image sensor , it features the same crop factor (of roughly 1.6) as the existing EF-S lens mount.