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The AR-mount lenses may be divided into several types, based mostly on cosmetics. When the Autoreflex T was introduced in 1967, Konica added a lever to signal the widest aperture setting for the through-the-lens (TTL) in-body light meter; Konica also offered a free service to retrofit the earliest AR-mount lenses with the new lever.
When Sony took over the system in 2006, [14] 12 lenses were rebranded as Sony A-mount lenses and launched alongside 6 new designs and 2 teleconverters. [15] Of the dozen rebranded lenses, most are optically, mechanically and electrically identical to their Minolta predecessors and differ only in their outer appearance, however, three have seen ...
The A3 camera consists of dual CCDs with two 300mm lenses mounted on a special motor controlled axis that is attached to the frame, a fast compression and storage unit, and a dual frequency GPS. During flight, sequences of frames are exposed in a cross-track direction at a very high speed, providing a FOV of up to 106 degrees. High resolution ...
Sony released the following A-mount cameras since 2006. ... Full frame CMOS Auto-lock Accessory Shoe (4-pin iISO) 2.00 Professional 2009-08-27 2009-09
The system used a lens mount called A-mount, with a flange focal distance 44.50 mm, one millimeter longer, 43.5 mm, than the previous SR mount from 1958. The new mount was wider, 49.7 mm vs. 44.97 mm, than the older SR-mount and due to the longer flange focal distance, old manual lenses were incompatible with the new system.
Minolta SR-mount lenses can be broken into three broad generations with some overlap: [5] Pre-MC (1958): Lenses with manual, preset, and automatic diaphragms, without the meter coupling (MC) tab on the aperture ring to signal the f-stop that was selected to the in-body light meter. MC (1966): Lenses with automatic diaphragms, with the MC tab.
The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component.
The Touit lenses are produced for a Fujifilm X-mount and Sony E-mount. [44] Because Fujifilm did not share the specifications of the X-mount, Carl Zeiss never received officially the license for releasing X-mount lenses. The Touit lenses are therefore non-certified. [45] Touit Distagon 12mm f/2.8 wide angle lens; Touit Planar 32mm f/1.8 normal lens