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Abbreviations

Sample photos (8)

Specification

Sources of data

• Manufacturer's technical data.
• Asahi Pentax series lenses and accessories booklet (PUB. 06771, 60 pages).
• smc Pentax-A lenses operating manual.
• Honeywell Hot Line Newsletter.
• Pentax LX booklet (PUB. 06511).
• Asahi Pentax MX booklet (PUB. 06241).
• Asahi Pentax MX booklet (PUB. 06241) (March 1981).
• Pentax MV booklet (PUB. 06021).
• Pentax MV1 booklet (PUB. 06036).
• Pentax MG booklet (PUB. 06221) (July 1983).
• Pentax LX booklet (PUB. 06506) (April 1981).
• The many eyes of Pentax booklet (PUB. 06071).
• Pentax cameras booklet (PUB. 06091, 32 pages).
• Asahi Pentax ME booklet (PUB. 06006).
• Pentax ME Super booklet (PUB. 06731).
• Asahi Pentax smc Pentax lenses booklet.
• Pentax lenses and accessories booklet (PUB. 06771) (April 1983).
• Pentax lenses and accessories booklet (PUB. 08051).
• Pentax lenses & accessories - A Comprehensive and Versatile Photographic System booklet.
• Pentax ME Super booklet (PUB. 06726) (March 1981).

Manufacturer description #1

The incredible standard lens everyone is speaking about. A mere 18mm in depth and 110g in weight, it represents the ultimate in compactness. Moreover, offering 10° more coverage than a 50mm lens, it is extremely versatile.

Manufacturer description #2

From the Pentax MV booklet:

One might think it is convenient enough that the MV is one of the world's smallest and lightest SLRs. But, those who purchase it with the new incredible SMC Pentax-M 40mm "pancake" standard lens will find that it also offers the extra convenience of "pocketability".

Protruding a mere 18mm from the front of the camera, this remarkable standard lens enables you to slip the camera into coat pockets, handbags and light luggage. Moreover, those who like to get a little extra into the picture will find that the 40mm standard lens gives them 10° more angle of view than 50mm standard lens; yet it still offers a perspective that is pleasing for portraits and snapshots. In addition, the "pancake" lens is a particularly great lens for hikes, trips and so forth.

Manufacturer description #3

This is the incredible "pancake" lens that everyone has been talking about. Weighing a mere 110 grams (3.88 ozs) and extending a mere 18mm (0.7 in.) from the camera body, it enables you to convert your already compact Pentax into a "pocket" SLR, slipping easily into handbags, coat pockets and light luggage. Moreover, its shorter 40mm focal length gives a perspective which is still natural enough for beautiful portraits and snapshots, while the extra 10° angle of view lets you get more into the picture. And, using today's fast films, it's also fast enough for indoor snapshots without flash. A great lens for hikes, travelling and everyday use.

Manufacturer description #4

The Smallest 40mm Lens in 35mm SLR Photography. This dramatic example of miniaturization sets a new trend and level of excellence in standard lenses. Ultra-compact, it protrudes less than 3/4 inch from the mounting plane and weighs only 3 3/4 ounces. It covers a 56 degree angle of view, 10 degrees more than a 50mm lens, and focuses to 2 feet. Lens construction is 5 elements in 4 groups.

Pentax-M series

The second generation of lenses designed for Asahi Pentax 35mm SLR cameras with bayonet mount. Introduced with Asahi Pentax ME and MX in 1976.

• Miniaturized lenses with average 20% less weight and length than their standard SMC counterparts, but with no sacrifice in quality of construction, resolution, durability or contrast;
• Robust, all-metal design with recessed focusing distance scale;
• Fully automatic diaphragm;
• Support for TTL open-aperture metering;
• Extremely accurate manual focusing with rubberized focusing ring;
• Multi-layer anti-reflection coating.

Other wide-angle prime lenses in the Pentax K system

Lenses with similar focal length