8/27/2023 0 Comments Helios lens cahrt![]() ![]() This table necessarily lacks detail that has important implications. the Contax Kiev or the Canon 7) have two mounts, for either of two kinds of lens. See the Links section below for some of our sources.Ĭertain bodies (e.g. The data in this table has been compiled from a variety of sources including our own pages, the Cornell University camera mount list, and William-Jan Markerink's lens flange distance table. The table can be sorted by any of these parameters by clicking the sort icons in the table header. The table below lists known camera lens mounts by name, register (Flange Focal Distance), and mechanical description. Some lens manufacturers specifically design lenses to be relatively easy to convert to any one of several different proprietary mounts. (Even with a greater register, there may be mechanical limitations.) Adapting a lens designed for a smaller register either (a) requires an optical adapter (which lowers image quality), or (b) prevents focussing beyond a certain distance. ![]() In principle a mechanical lens mount adapter can be created for a camera with a given register (aka Flange Focal Distance or FFD) that will mount lenses designed for cameras of any greater register. In contrast to camera manufacturers' desire for incompatibility, consumer demand for interchangeability has driven the development of lens mount adapters and interchangeable mount systems by third-party lens manufacturers. The primary motivation for the proliferation of lens mounting systems and the incompatibility between different manufacturers' mounting systems is vendor lock-in the desire to force a consumer to continuing buying hardware of a given brand by assuring their hardware will not be compatible with other brands. A few additional variations or combinations are rarely used such as multi-start threaded screw mounts. Most lens mounts fall into one of several categories of mechanical operation: threaded screw, bayonet, or breech lock. Some are unique to a particular device or manufacturer (and protected by patent) for some, the patent has expired and others again are designed to be shared by cameras from multiple manufacturers. Still and motion picture cameras, as well as other optical equipment, use lens mounts. A lens mount is a mechanical and also sometimes an electrical interface between a camera and a lens that allows cameras to have interchangeable lenses. ![]()
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