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These are also the only two SLRs that ever offered a choice of full- or half-frame exposures, switched by a lever on top of the camera. The frame size can be changed between 24×36 landscape and 18×24 portrait in mid-roll. Autorex is the name for the domestic Japanese market. In Germany the camera was also sold as Revue Auto-Reflex.
NATO Accessory Rail (STANAG 4694) The NATO Accessory Rail (NAR), defined by NATO Standardization Agreement (STANAG) 4694, is a rail interface system standard for mounting accessory equipment such as telescopic sights, tactical lights, laser aiming modules, night vision devices, reflex sights, foregrips, bipods and bayonets to small arms such as rifles and pistols.
It is similar in concept to the earlier commercial Weaver rail mount used to mount telescopic sights, but is taller and has wider slots at regular intervals along the entire length. The MIL-STD-1913 locking slot width is 0.206 in (5.23 mm). The spacing of slot centres is 0.394 in (10.01 mm) and the slot depth is 0.118 in (3.00 mm). [8]
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.
Several alternative mounting methods to using action threads exist. Barrel press fit Pressing the barrel into the receiver to achieve a press fit is an alternative to using action threads which has been used on firearms such as Anschütz Fortner , Anschütz Model 54 , [ 61 ] AKM [ 62 ] and Sauer 101 .
Most sizes of VESA mount have four screw-holes arranged in a square on the mount, with matching tapped holes on the device. The horizontal and vertical distance between the screw centres respectively labelled as 'A', and 'B'. The original layout was a square of 100mm. A 75 mm × 75 mm (3.0 in × 3.0 in) was defined for smaller displays.
DIN 41494-7 Dimensions of cabinets and suites of racks. DIN 41494-8 Components on front panels; mounting conditions, dimensions; DIN IEC 60297-3-100 (see above in IEC section) A rack's mounting fixture consists of two parallel metal strips (also referred to as posts or panel mounts) standing vertically. The posts are each 0.625 inches (15.88 mm ...
Locomotive frame of a LNER Gresley Pacific locomotive during construction. A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of some kind.