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young dark blonde girl posing with an old camera on wooden chairs in the old historic room with wide variety of antique and vintage items
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Young Dark Blonde Girl Posing With An Old Camera On Wooden Chairs In The Old Historic Room With Wide Variety Of Antique And Vintage Items

The focal-plane shutter operates as close to the film plane as possible and consists of cloth curtains that are pulled across the film plane with a carefully determined gap between the two curtains (typically running horizontally) or consisting of a series of metal plates (typically moving vertically) just in front of the film plan. The focal-plane shutter is primarily associated with the single lens reflex type of camera's, since covering the film rather than blocking light passing through the lens allows the photographer to view through the lens at all times except during the exposure itself. Covering the film also facilitates removing the lens from a loaded camera (many SLR's have interchangeable lenses).
Complexities
Professional medium format SLR cameras (typically using 120/220 roll film) use a hybrid solution, since such a large focal-plane shutter would be difficult to make and/or may run slowly. A manually inserted blade known as a dark slide allows the film to be covered when changing lenses or film backs. A blind inside the camera covers the film prior to and after the exposure (but is not designed to be able to give accurately controlled exposure times) and a leaf shutter that is normally open is installed in the lens. To take a picture, the leaf shutter closes, the blind opens, the leaf shutter opens then closes again, and finally the blind closes and the leaf shutter re-opens (the last step may only occur when the shutter is re-cocked).

File information
Filename:543512.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#young #dark #blonde #girl #posing #old #camera #wooden #chairs #historic #room #wide #variety #antique #vintage #items
Filesize:347 KiB
Date added:Mar 12, 2013
Dimensions:800 x 1167 pixels
Displayed:147 times
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