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  2. Pentax 6×7 - Wikipedia

    en.wikipedia.org/wiki/Pentax_6×7

    Pentax 6×7 front Pentax 6×7 top Pentax 6×7 side Pentax 6×7 back. The Pentax 6×7 (called "Pentax 67" after 1990) is a SLR medium format system film camera for 120 and 220 film, which produces images on the film that are nominally 6 cm by 7 cm in size (actual image on the film is 56 mm × 70 mm), made by Pentax. It originally debuted in 1965 ...

  3. Pentax cameras - Wikipedia

    en.wikipedia.org/wiki/Pentax_cameras

    In June 2013 Pentax announced the successors to the K-30, the K-50 and K-500. Both are mid-level DSLRs, the K-500 being a stripped-down version of the K-50, having no weather seals and less-advanced electronics. [36] [37] Pentax K-500 uses 4 AA batteries (rechargeable Lithium battery is optional), while Pentax K-50 uses rechargeable Lithium ...

  4. Pentax - Wikipedia

    en.wikipedia.org/wiki/Ricoh_Pentax

    Pentax Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha) was a Japanese camera and optical equipment manufacturer. Currently, it exists as the Pentax Life Care Business Division of Hoya's medical endoscope business, as well as the digital camera brand of Ricoh Imaging, a subsidiary of Ricoh.

  5. Pentax K-mount - Wikipedia

    en.wikipedia.org/wiki/Pentax_K-mount

    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. A number of other ...

  6. Pumping station - Wikipedia

    en.wikipedia.org/wiki/Pumping_station

    A four pole or six pole AC induction motor normally drives the pump. Rather than provide large open passages, some pumps, typically smaller sewage pumps, also macerate any solids within the sewage breaking them down into smaller parts which can more easily pass through the impeller. The interior of a sewage pump station is a very dangerous place.

  7. Category:Pentax DSLR cameras - Wikipedia

    en.wikipedia.org/wiki/Category:Pentax_DSLR_cameras

    Articles related to the digital single-lens reflex cameras manufactured by Pentax. Pages in category "Pentax DSLR cameras" The following 30 pages are in this category, out of 30 total.

  8. Pentax Spotmatic - Wikipedia

    en.wikipedia.org/wiki/Pentax_Spotmatic

    The Pentax Spotmatic refers to a family of 35mm single-lens reflex cameras manufactured by the Asahi Optical Co. Ltd., later known as Pentax Corporation, between 1964 and 1976. All Pentax Spotmatics used the M42 screw-thread lens mount which was developed after World War II by Zeiss and Praktica. Asahi Optical used the name Takumar for their ...

  9. Rotary vane pump - Wikipedia

    en.wikipedia.org/wiki/Rotary_vane_pump

    An eccentric rotary vane pump Another eccentric rotary-vane pump design. Note that modern pumps have an area contact between rotor and stator (and not a line contact). 1. pump housing 2. rotor 3. vanes 4. spring. A rotary vane pump is a type of positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In ...

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