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However, it is Pentax’s breadth that is impressive, including its medium format range (the 120 6×7 cameras), as well as the popular 110 Auto. Its technical achievements are many, including the Spotmatic (TTL metering), producing one million SLRs by 1966, TTL auto-exposure, and TTL auto-focus amongst a number of firsts. Pentax introduced the first Japanese SLR and then the first SLR with an instant return mirror. The single lens reflex (SLR) arrived in 1936 and it was the post-war years that saw a flurry of development. Leica went rangefinder, while the likes of Rollieflex pursued the twin lens reflex. With the increased popularity of the roll-film 35mm camera in the form of the Leica 1, the inter-war years were spent trying to solve the viewfinder problem.
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It manufactured military optics during World War 2, was disbanded, then reformed in 1948 when it continued with lens manufacturing, principally for (what became) Konica and Minolta. The camera brand has a long and proud heritage in the camera industry, with a lineage of optics manufacture from the very beginning (for spectacles) through to its eventual purchase by Hoya.
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