Friday 6 November 2015

Single Lens Reflex Camera

Sutton ushers in modern photography with a new camera

The modern era of photography began in 1861 with the invention and patenting the world's first single is t lens reflex camera (SLR) camera by photography expert Tomas Sutton (1829-1875). His prototype led to the creation of the first batch of SLR cameras in 1884, with a design that is still in use today. Sutton also assisted jams Clerk Maxwell in his successful demonstration of color photography in 1861.
       In non-SLR cameras, light enters the viewfinder at a slightly different angle to that at which it enters the lens, so the resulting photo can appear different to intended composition. In SLR cameras, a mirror is positioned in front of the lens 
and directs light up into a pentaprism. The light bounces between its edges until enters the viewfinder with correct orientation, as if the viewer is looking directly through the camera  lens. When a photograph is taken, the mirror moves out of yhe way allowing liht to reach the flim or, with digital SLRs (DSLRs), the imagining sensors.
      Now the most popular professional camera format, the SLR camera was the culmination of decades of photographic innovations that began with the production of Louis Daguerre's  daguerrotype and Joes Maximilian Petzval's lens system, which le dto the first mass-produced cameras.
     Although no record of the first production model exists, the camera was first commercially produced in the mid-1800s. By the 1930s it was extremely popular with photographers, allowing and undistorted view od the subject from the correct perspective. DLSRs have all but replaced the traditional SLR, but the principle that Sutton pioneered is still used today.


With the decreasing costs, single-lens reflex cameras like this 1911 Adam's Minex became more popular. 

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