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2. List of Nikon F-mount lenses with integrated autofocus motor

   en.wikipedia.org/wiki/List_of_Nikon_F-mount...

   All Nikon zoom AF-lenses have focal length encoders added. Nikon AF-P: The lens contains a pulse motor (utilizing stepping motors) to focus smoother and quieter than previous drive systems. Nikon AF-I, Sigma/Tamron/Tokina: no designation: The lens contains an integrated focus electric motor. The Nikon type was produced from 1992 to 1996 and is ...

3. Kenko (company) - Wikipedia

   en.wikipedia.org/wiki/Kenko_(company)

   Kenko Co., Ltd. (株式会社ケンコー, Kabushiki-gaisha Kenkō) is a Japanese manufacturer and trading company of photographic accessories, especially known for its teleconverters and filters. [1] [2] Located in Tokyo, it has been producing conversion lenses since the 1960s. It produces camera lenses under the Kenko [3] and Tokina brand names

4. Extension tube - Wikipedia

   en.wikipedia.org/wiki/Extension_tube

   Extension tubes are sometimes confused with teleconverters, an optical component (i.e., containing lenses) designed to increase effective focal length. A close-up lens also enables focusing closer for macro photography but, unlike an extension tube, a close-up lens actually is an optical element.

5. Nikon F-mount teleconverter - Wikipedia

   en.wikipedia.org/wiki/Nikon_F-mount_teleconverter

   AF-S Teleconverter TC-14E II. The Nikon F-mount teleconverters are a group of magnifying lenses mounted between the lens and camera bodies using the Nikon F-mount.Currently, 1.4x, 1.7x and 2x converters are available separately; a fourth, the 1.25x, is available only with Nikon's newest 800mm supertelephoto lens.

6. File:Nikon PK-12 14mm extension tube, F mount.jpg - Wikipedia

   en.wikipedia.org/wiki/File:Nikon_PK-12_14mm...

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7. Nikonos - Wikipedia

   en.wikipedia.org/wiki/Nikonos

   Offered by third parties; no Nikon extension tubes were produced. Nikon Close Up Kit, which included a close-up lens that attached to the front of either the UW 28 mm, W 35 mm, or W 80mm Nikonos lenses, a frame support bracket, and three field frames (one for each lens) to produce near-macro image ratios (approx range of 1:5 to 1:3, depending ...