Focusing Ring

Some articles on focusing, focusing ring, ring:

Canon EF 85mm Lens - EF 85mm F/1.2L USM
... new large element required a new clutched electronic manual focusing mechanism that does not exist on any other lenses to handle the specialized element ... It features a wide rubber focusing ring and a distance window with infrared index ... This lens uses a floating front extension focusing system, powered by a ring type USM motor ...
Canon EF Lens Mount - Controls and Features
... Focusing ring This control, found on most EF lenses, is used for focusing the lens ... It is usually a ring on the lens body, that can be turned ... Zoom ring This control is found on many EF zoom lenses ...

Famous quotes containing the word ring:

    Genius resembles a bell; in order to ring it must be suspended into pure air, and when a foreign body touches it, its joyful tone is silenced.
    Franz Grillparzer (1791–1872)