Canon Viseur Speed Finder (sportif) et viseur Booster T...

Canon Viewfinders for the F-1 The Canon Booster T viewfinder is interchangeable with the standard viewfinder of the Canon F-1; it allows proper exposure thanks to its light meter even in very low light conditions. It is particularly effective for photomicrography, macrophotography and night photography. Measuring elements: 2 CdS photodiodes Low light (orange scale): center-weighted closed-aperture metering system Bright light (white scale): open-aperture measurement over 12% of the surface Meter sensitivity: 25 to 12800 ASA Illumination of the measurement scale in the finder from 1/4 to 1/60 seconds Illumination of the measurement scale powered on demand for exposures between 1/2 sec and 60 sec Built-in timer for exposures from 1/2 sec to 60 sec Power supply by 6V silver oxide battery Eyepiece shutter Accepts all viewfinder accessories compatible with the standard prism (angle finder, diopter correction) Weight: 350 g The Speed Finder viewfinder is suitable for all types of shots, whether overhead views or reproduction work. This viewfinder is articulated by 180°, and can switch from eye-level viewing to a waist-level finder by a simple rotation of the rear part of the optical system. The Speed Finder’s exit pupil is located 60 mm behind the eyepiece, allowing comfortable viewing in difficult conditions. Magnification with a 50mm: x0.53 at infinity, x0.65 at 1 m Diopter correction: -1 D Weight: 346 g

估價:$420.48

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