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Specification

Manufacturer description #1

TYPE: 35mm SLR with through-the-lens light meter and vertical electronic focal-plane shutter. Exposure control fully automatic or manual

FILM AND PICTURE SIZE: 35mm film. 24mm x 36mm

SHUTTER: Vertical run, metal focal-plane shutter. Shutter button lock provided. Automatic electronic shutter: stepless between 8 and 1/1000 sec. Manual electronic shutter: 8, 4, 2, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000 sec. Manual mechanical shutter: B, 1/125 sec. (when battery is dead)

FLASH SYNCHRONIZATION: X contact hot shoe for cordless flash connection. FP + X contacts for conventional flash cord connection. X synchronization at 1/125 sec.

SELF-TIMER: Built-in self-timer with interrupt function. 5-9 sec. delay after tripping shutter release

VIEWFINDER: Pentaprism finder with cross-microprism or split-image focusing screen. 0.88x magnification with 50mm lenses (life-size with 55mm lens). 95% field of view. Dioptry -0.8. "Incorrect exposure range" indicator

FOCUSING: Turn focusing ring until viewfinder image comes into focus

REFLEX MIRROR: Swing-up-and-back, instant-return type, with mirror lock-up lever, and special shock absorbers for minimum vibration

FILM ADVANCE: Single-stroke wind lever. 25° pre-advance and 130° advance angles

EXPOSURE COUNTER: Automatic re-set

FILM REWIND: Rapid-rewind crank lifts clear of body

LENS MOUNT: Pentax bayonet mount. Rotation: 65°

EXPOSURE METER: Silicon Photo Diode-activated, aperture-preferred, through-the-lens meter measures central portion of ground glass at full lens aperture. Match needles for correct exposure on manual. Couples directly to shutter, aperture and film speed settings. Shutter speed and auto/manual setting visible in viewfinder for exposure doublecheck

EXPOSURE CONTROL: Exposure factor control dial: 4x, 2x, 1x, 1/2x, 1/4x for specific exposure control

POWER SOURCE: Two 1.5V silver oxide batteries (Eveready S76E or Mallory MS76H)

METER SWITCH: Meter is ON when shutter button is depressed halfway. Also, when film wind lever is at its pre-advance angle and shutter button is depressed halfway, meter stays ON. Battery check button and lamp provided

Manufacturer description #2

The K2 is the finest, fully-automatic electronic exposure SLR camera in the world. The Seiko MF shutter (a compact, metal focal-plane shutter consisting of 5 fan-like leaves) has been created especially for the K2. The K2 offers 2 exposure determination systems: fully-automatic or match-needle operation. Either system can be used at speeds from 1/1000 sec. to 8 sec. From its new shutter to its new exterior finish, the K2 makes the most of its extremely advanced design in every situation, under practically any conditions.

• Automatic stepless shutter speeds from 8 seconds to 1/ 1000 second.
• A full range of manual electronic shutter speeds from 1/1000 to 8 second, plus B.
• New ten bladed vertical running metal shutter.
• Electronic flash sync at 1/125 second.
• Fast response silicon photo diode adjusts quickly to abrupt light changes.
• Mirror lock-up switch to minimize vibrations.
• 4x to 1/4x exposure factor dial to compensate for difficult lighting situations.
• Human engineflred for surer, easier and faster handling.
• Over 30 matching Pentax bayonet lenses with sure grip focusing ring and improved Super-MuIti-Coating.
• Silver coated pentaprism and a larger mirror mean a brighter viewfinder with no mirror cut-off when using telephoto lenses.
• A complete system of accessories for every photographic situation.
• 5.7" wide, 3.6" high and 3.7" deep with the 50mm SMC Pentax f/1.4 lens.
• The body only is a light 24.2 ozs., with the 50mm f/1.4 lens 33.7 ozs.
• Center weighted metering.
• 8-6400 ASA range to handle today's films.
• Automatic metering for fast action, plus match needle for manual metering.
• Depth-of-field preview.

Manufacturer description #3

The new Asahi Pentax K Series - the first Pentax system based on the long-awaited K bayonet mount. Foolproof, handy, sure, the K bayonet mount is a "first" that was well worth waiting for. And the new mount is not all that's new about the Pentax K Series. By achieving the highest standards of electronic, optical and mechanical engineering, the new 35mm SLR K Series offers far greater possibilities for all levels of photographic skills.

From now on, there will be three Pentax series available simultaneously: the S Series based on the conventional screw mount, the 6x7 ideal-format system, and the new K Series.

The new Pentax K Series consists of three 35mm SLR models: the K2, the KX and the KM.

The K2 is the cream of the K Series. It is the newest fully-automatic exposure SLR camera and incorporates the unique, vertical-drop Seiko MF (Metal Focal-plane) shutter. A wide range of shutter speeds - 1/1000 to 8 sec. - is available, on either automatic or manual setting.

The new Pentax KX is a through-the-lens metering SLR with a brighter viewfinder to give you complete information. A convenient system of matching needles is located on the right hand side of the viewfinder, and the selected speed and aperture are always visible within the viewfinder.

The Pentax KM is essentially the Spotmatic F camera (the world's most popular fine camera), updated and improved with the new K bayonet mount.

A second part of the new K Series is the brand new line of interchangeable lenses - SMC Pentax lenses. In addition to being equipped with the new K bayonet mount, these new lenses have Super-Multi-Coating on many more glass surfaces, including some which are not exposed to the air. This makes for truer color reproduction and virtually eliminates ghost and flare. Standard focal length SMC Pentax lenses are: the 50mm f/1.4, the 55mm f/1.8 and the new 50mm f/1.2 - the first lens of this type the world has ever seen.

New K Series lenses are uniquely easy to mount. Less than a quarter of a turn does it all - even couples the automatic diaphragm elements and the open-aperture metering elements. And thanks to a raised bump on the lens, SMC Pentax lenses can be mounted with ease, even in the dark.

Four years ago, Asahi Pentax pioneered the application of Super-Multi-Coating to photographic lenses. Since then, the benefits have become universally recognized: up to 99.8% of all available light is directed to the film plane; color reproduction is truer; clarity and brightness are hightened; ghost and flare are virtually eliminated, etc. It's no wonder Super-Multi-Coated lenses are highly valued by photographers around the world!

Even since we started it, we have been making Super-Multi-Coated lenses under the name SMC Takumar. Now that these lenses have been upgraded - with multi-coatings applied to many glass surfaces which previously were only single-coated, we have also given them a new name: SMC Pentax lenses. SMC Pentax interchangeable lenses - even better light transmission, along with the new K bayonet mount.

Because the Pentax K bayonet mount is such an important feature of the new K Series, it deserves a bit more attention.

1. Less than a quarter turn locks it on. No other mount offers such ease of interchangeability. With a twist of only 65°, the lens is securely mounted, with both the automatic diaphragm elements and the open-aperture metering elements firmly coupled simultaneously.
2. Imaginatively designed mounting indicators. Simply by matching up the red dots - one each on the lens and the body - mounting can be done easily. Even in the dark, just by matching up the raised bump on the lens barrel with the lens release lever, lenses can be mounted by touch alone.
3. Exact placement of lever makes for safe, accurate interchanging of lenses. Lenses can be changed safely and easily by holding the camera upright, unlocking the lens by pushing the lever with the thumb, and then turning the lens barrel. Human engineering was the guideline for the positioning of all K Series handling parts.
4. Inner mount diameter is a wide 45mm. To accomodate faster lenses, the inner diameter of the K mount is a full 45mm. For added brightness also, a 50mm f/1.2 lens is being offered for the first time as a standard focal length lens.
5. Using conventional screw-mount lenses. Use of the Mount Adaptor K is an inexpensive way of adapting SMC Takumar screw-mount lenses to the new K bayonet mount. This adaptor plays the role of "liason bridge". Because the distance from the K mount to the film plane is 45.5mm, the same as for the S Series, the adaptor has been designed so that coupling takes place in the inside part of the bayonet mount. When using this adaptor, all focusing, up to infinity, is possible. However, apertures must be set manually, and open-aperture metering lenses require stop-down metering.

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