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Unertl Optical Company. Unertl Optical Company, Inc. was a manufacturer of telescopic sights in the United States from 1928 until 2008. They are known for their 10× fixed-power scopes that were used on the Marine Corps ' M40 rifle and made famous by Marine Corps Scout Sniper Carlos Hathcock during the Vietnam War.
A review by Imaging Resource emphasised its "excellent high ISO performance" and "excellent print quality". [26] In September 2010 Pentax announced the K-r, a 6 frames per second 12.4 megapixel camera [27] and the K-5, a 7 frames per second 16.3 megapixel camera. [28] These cameras use a new, faster autofocus system, SAFOX IX. [29]
Pentax 02 Standard Zoom (2011) — 28–80 mm equivalent; Pentax 03 Fisheye (2011) — 17.5 mm equivalent; Pentax 04 Toy Lens Wide (2011) — 35 mm equivalent; Pentax 05 Toy Lens Telephoto (2011) — 100 mm equivalent; Pentax 06 Telephoto Zoom (announced in 2012) — 83–249 mm equivalent; Pentax Adapter Q for K-Mount Lens (announced in 2012)
AN/PVS-4 (Night Vision Sight, Individual Served Weapon, AN/PVS-4) is the U.S. military designation for a specification of the first second generation passive Night vision device. The AN/PVS-4 first saw widespread use during the Gulf War and later some deployment in the Iraq War and has since been replaced by modern third-generation weapon sights.
Japan. 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 ...
Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...
"Pentax 645D" camera with "smc PENTAX-DFA 645 55 mm F2.8 AL" lens. The Pentax 645D is a digital single-lens reflex camera introduced in 2010. It is approximately the same size and shape as the earlier film models, and the lens mount accepts older manual and auto-focus lenses. It features a 40 megapixel CCD sensor manufactured by Kodak.
1962: Pentax launched the world's first diagonal fish-eye lens for 35mm SLR cameras. That lens was the Takumar 18mm F11 Fish-eye. [ 1 ] 1965: Pentax introduced the 6x7 SLR medium format system. 1967: Pentax introduced the world's most efficient fish-eye lens with a maximum brightness of f/4. Takumar Fish-eye 17mm f/4.