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2. Expeed - Wikipedia

   en.wikipedia.org/wiki/Expeed

   The Nikon D4S's processor is identical to the Nikon D4, marked EI-158, using its processing power with improved software enabling 1080p video capture at 50/60fps, 11 fps photos with improved autofocus, new noise reduction with image-content variable algorithm (context-adaptive) [44] [45] and other improvements. [46] [47]

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

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

   The sequence of lens designations may differ in literature. See also full list of Nikon designations, Sigma designations, Tamron designations and Tokina designations.. Nikon AF-S/Sigma HSM/Tamron USD or PZD: The lens contains an integrated ultrasonic focus motor based on piezoelectricity, which enables quiet or low noise autofocus operation.

4. Kiron Corporation - Wikipedia

   en.wikipedia.org/wiki/Kiron_Corporation

   Kiron Corporation was a subsidiary of Kino Precision Industries, Ltd., a Japanese manufacturer of photographic lenses.Kiron was based in Carson, California, operating in the 1980s primarily as the United States distributor of Kiron lenses, which were offered in a variety of mounts compatible with many popular 135 film manual focus single-lens reflex camera systems.

5. Category:Macro lenses - Wikipedia

   en.wikipedia.org/wiki/Category:Macro_lenses

   Samsung NX 60mm F2.8 Macro ED OIS SSA; Sigma 105mm f/2.8 EX DG lens; Sigma 150mm f/2.8 APO Macro EX DG HSM lens; Sigma 180mm f/3.5 EX DG lens; Sony E 30mm F3.5 Macro; Sony FE 50mm F2.8 Macro; Sony FE 90mm F2.8 Macro G OSS; Sony α Macro 50mm f/2.8; Sony α Macro 100mm f/2.8

6. Extension tube - Wikipedia

   en.wikipedia.org/wiki/Extension_tube

   The precise reduction of the amount of light reaching the imaging plane can be calculated using the inverse square law formula. Extension tubes without electrical contacts will not allow an electronic automatic camera to control the lens, thus disabling autofocus and in some cases forcing a user to shoot wide open unless the lens offers manual ...

7. Lenses for SLR and DSLR cameras - Wikipedia

   en.wikipedia.org/.../Lenses_for_SLR_and_DSLR_cameras

   For example, a 35 mm lens mounted on a full-frame Canon EOS 5D provides a slightly wide-angle view, while the same lens mounted on an APS-C Canon EOS 400D provides a "normal" or slightly telephoto view. In order to more easily compare lens–camera pairs, it is common to use their 35 mm equivalent focal length.