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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.
The Micro Four Thirds system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of 19.25 mm, covering an image sensor with dimensions 17.3 × 13.0 mm (21.6 mm diagonal).
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 .
Canon full-frame cameras have used the EF lens mount since 1987. In comparison with that mount, the RF mount's inner diameter is the same at 54 mm. [1] The RF mount's flange focal distance at 20 mm is much shorter than that of the Canon EF and EF-S mounts at 44 mm.