Pentax K1000

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Pentax K1000

Without lens, showing the K mount and mirror.

Top view, showing the controls.
The Pentax K1000 (originally marked the Asahi Pentax K1000) is an interchangeable lens, 35 mm film, single-lens reflex (SLR) camera. It was manufactured by Asahi Optical Co., Ltd. (renamed PENTAX Corporation in 2002; acquired by Hoya Corporation in 2008) from 1976 to 1997, originally in Japan. It uses a horizontal travel, rubberized silk cloth focal plane shutter with a speed range of 1/1000 second to 1 second, along with Bulb and a flash X-sync of 1/60 second. It is 91.4 milimetres tall, 143 mm wide, and 48 mm deep, and weighs 620 grams. It was finished in black leather with chrome trim only. (Unlike most SLRs of its generation, there was no all black version.) However, the early production Pentax K1000 SE (see below) bodies had brown leather with chrome trim.
The introductory US list price for the K1000 body with SMC Pentax 55 mm f/2 lens was $299.50. In 1983, a K1000 with SMC Pentax-M 50 mm f/2 lens listed for $220; in 1988, the body only was $210, but $290 with SMC Pentax-A 50 mm f/2; in 1993, the body only was $263. The body plateaued at $315 in 1994 and remained there until discontinued. Note that SLRs usually sold for 30 to 40 percent below list price.
The K1000 is the simplest member of Asahi Optical's Pentax K-series SLRs, whose other members are the Pentax K2, KM, and KX, all introduced in 1975, and the K2 DMD (1976). All have the same basic body design, but with differing feature levels, internal electronics, and external controls and cosmetics.
The K1000's extraordinary longevity makes it a historically significant camera, despite its very ordinary design. Although the K1000 was already obsolete when it was first released, its inexpensive simplicity was a great virtue and earned it an unrivaled popularity as a basic but sturdy workhorse, particularly suited to educating inexperienced photographers. The Pentax K1000 eventually sold over three million units.
Contents
1 Features
2 Design History
3 References
4 External links
//
Features
The K1000 was an almost all metal, mechanically (springs, gears, levers) controlled, manual-focus SLR with manual exposure control. It was completely operable without batteries. It only needed batteries (one A76 or S76, or LR44 or SR44) for the light metering information system. This consisted of a center-the-needle exposure control system using a galvanometer needle pointer moving between vertically arranged +/ over/underexposure markers at the right side of the viewfinder to indicate the readings of the built-in full-scene averaging, cadmium sulfide (CdS) light meter versus the actual camera settings. The meter did not have a true on/off switch and the lens cap needed to be kept on the lens to prevent draining the battery when the K1000 was not in use.
The viewfinder also had a focusing screen with a microprism spot focusing aid. The Pentax K1000 SE substituted a split image rangefinder plus microprism collar focusing screen. The K1000 SE is otherwise identical to the regular K1000, except that the SE's from the first few years of production used brown leather instead of black.

A Pentax K1000 SE
The K1000 was often sold with a version of the SMC Pentax 50 mm f/2 lens. The K1000 accepted all manual focus lenses with the Pentax K bayonet mount, introduced in 1975 with the Pentax K-series SLRs. This included the K-A mount lenses introduced in 1983. Manual focus lenses made by Asahi Optical were the SMC Pentax, SMC Pentax-M and SMC Pentax-A types.
In addition, almost all lenses with the Pentax K-AF and K-AF2 autofocus lens mounts (introduced 1987 and 1991, respectively) would also work in manual focus mode. The exceptions are Pentax's newest SMC-Pentax FA J (1997) and SMC-Pentax DA (2004) types, which lack an aperture control ring. They will mount on the K1000, but have restricted functionality. Asahi Optical sold the Mount Adapter K to allow their older Takumar screw mount lenses (see below) to be used on K mount cameras (with limitations), but it is now a collector's item. In 2006, Pentax said that it had manufactured more than 24 million lenses over fifty years that could provide at least some functionality on the K1000. The number of independently manufactured Pentax-compatible lenses is also huge, but indeterminate.
Except for having an enormous variety of lenses with the popular K mount to choose from, the K1000 had fewer features compared to higher level SLRs of the mid 1970s. It had a slower flash synchronization speed of 1/60th second, a lower-quality sleeve-bushing equipped shutter and film advance mechanism, no self timer, no depth-of-field preview, no mirror lockup, no interchangeable focusing screens, no motor drive option, and no autoexposure.
The K1000 did accept any non-dedicated hot shoe mounted...(and so on)

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