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First K-mount version A-position, electrical contacts Screw drive, with contacts for serial communication Two contacts for Powerzoom Aperture ring abandoned Small image circle In lens autofocus motor electromagnetic aperture control K (K-series, M-series, LX) M, Av M, Av M, Av M, Av X X X X KA (A-series, P-series) M, Av M, Av, Tv, P M, Av, Tv, P
A second founder of Holosun, Sun Wenhui, is potentially affiliated with the CEO of Surpass, Sun Jianhua who is also subsequently the CEO of Huanic Corporation. Relationship between the two companies was potentially confirmed as Hwoyoung branded products have been discovered to have Holosun markings on them, possibly due to packaging mistakes.
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, [ 1 ] and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01 .
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.
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.
On Jan 9, 2012 Sigma announced its first two lenses for Micro Four Thirds, the "30mm f / 2.8 EX DN and the 19mm f / 2.8 EX DN lenses in Micro Four Thirds mounts". [58] In a press release posted on January 26, 2012, Olympus and Panasonic jointly announced that "ASTRODESIGN, Inc., Kenko Tokina Co., Ltd. and Tamron Co., Ltd. join[ed] the Micro ...
The idea behind these mounts was 'one lens, any mount'. A retailer, for instance, only had to keep one lens model and a few, cheap mounts, rather than many lenses in every different lens mount. It allowed automatic aperture, aperture indexing/metering facilities. Mounts were offered in almost all popular fittings.
The Micro Four Thirds system (MFT or M4/3 or M43) (マイクロフォーサーズシステム, Maikuro Fō Sāzu Shisutemu) is a standard released by Olympus Imaging Corporation and Panasonic in 2008, [1] for the design and development of mirrorless interchangeable lens digital cameras, camcorders and lenses. [2]
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