lens ring
51Nikon F-mount — The Nikon F of 1959 embodies the original F mount. Type Bayonet External diameter 44 mm Tabs 3 Flange 46.5 …
52Keratoconus — Classification and external resources The conical cornea that is characteristic of keratoconus ICD 10 H …
53eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
54Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …
55Pentax K mount — The Pentax K mount, sometimes referred to as the PK mount , is a lens mount standard for mounting interchangeable photographic lenses to 35 mm single lens reflex (SLR) cameras. It was created by Pentax in 1975, [cite web | url =… …
56Nikkormat — Nikomat Nikomat FT Type 35mm SLR camera Lens mount Nikon F mount Focus manual Exposure Man …
57Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …
58Macro photography — is close up photography; the classical definition is that the image projected on the film plane (i.e., film or a digital sensor) is close to the same size as the subject. On 35 mm film (for example), the lens is typically optimized to focus… …
59Minolta — Fate Merged Successor Konica Minolta Founded 1928 Osaka, Japan Defunct August 5, 2003 …
60Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …
