reflex camera

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reflex camera

a camera in which the image is composed and focused on a large ground-glass viewfinder screen. In a single-lens reflex the light enters through the camera lens and falls on the film when the viewfinder mirror is retracted. In a twin-lens reflex the light enters through a separate lens and is deflected onto the viewfinder screen

Reflex Camera

 

a camera equipped with a mirror viewfinder, which may be located outside the camera chamber and have its own lens (for example, the Liubitel’, Neva, and Rolleiflex cameras) or may be installed directly in the camera chamber, with sighting through the main lens (for example, the Zenit, Saliut, Kiev-10, Exacta, and Practica cameras).

The viewfinders of modern reflex cameras are equipped with auxiliary wedge-shaped focusing units for rapid and precise adjustment of the lens for sharpness. In a reflex camera with the viewfinder inside the camera chamber, the observed image coincides with the image formed on the film, since both are created by the same lens. This feature of the reflex camera allows the photographer to frame the picture precisely, to adjust the depth of the image space for the object to be photo-graphed, and to measure the illumination of the object. Reflex cameras are especially well suited for operation with inter-changeable lenses, since the mirror viewfinder eliminates the necessity of correcting the framing and the focusing of the camera after changing lenses.

reflex camera

[′rē‚fleks ‚kam·rə]
(optics)
A camera in which a mirror is used to reflect a full-size image of a scene on a ground glass so that the composition and focus may be judged.
References in periodicals archive ?
In addition, Sony will increase production capacity for mainly large sized "Exmor" used in Digital Single Lens Reflex cameras.
said it has begun shipment of some digital single-lens reflex cameras produced in Thailand, following the suspension of operations in the wake of massive floods.
said Thursday it will postpone the scheduled launch of its single-lens reflex cameras and headphones, as its manufacturing bases and product suppliers in Thailand have been affected by the devastating flooding.
said Thursday it swung back into the black in the first half of fiscal 2010 due to strong sales of digital single-lens reflex cameras and compact cameras as well as cost reductions.
In conjunction with the groundbreaking Nikon FX-format D3, the D3X tops off a collection of flagship level, rugged, professional caliber digital single lens reflex cameras engineered to excel in all types of professional photographic disciplines from photojournalism and sideline sports, to commercial in-studio applications.
In 1987, production of interchangeable EF lenses for Canon EOS-series AF (autofocus) single-lens reflex cameras began at the company's Utsunomiya Plant.
Current product categories include point and shoot products, long zoom products, digital single-lens reflex cameras, and accessories such as lenses.
The recently launched compact camera has similar hardware with the A6000, while the A5000 and A5100 have the same photographers' demographics - new users who upgrade from smartphone or compact point-and-shoot cameras and step up from the basic digital single-lens reflex cameras.
The chapter on cameras focuses on high-definition American Television Systems Committee (ATSC) formats and incorporates a wider range of camera types, including digital single-lens reflex cameras and consumer-grade units.
2 percent, to 1,749 yen after it suspended output at its mainstay plant for single-lens reflex cameras.
Canon said it enjoyed a solid recovery in sales of laser printers and other office equipment in the reporting period and global demand for digital single-lens reflex cameras remained brisk.
said Thursday it has adopted the Greek letter alpha as the brand for digital single-lens reflex cameras it will put on the market this summer.