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What is the full form of DSLR


DSLR: Digital single-lens reflex

DSLR stands for digital single-lens reflex. It refers to a digital camera that integrates optics and mechanism of single-lens reflex camera with the digital imaging sensor. In simple words, it is a digital camera which uses mirror to direct the light from the lens to viewfinder. The viewfinder is a hole which lies on the back of the camera and used to preview the image before you capture it. DSLR camera comes with interchangeable lenses. It enables you to swap lenses to get different views of a scene.

DSLR full form

DSLR Camera Parts

The key components of a DSLR camera are:

  • Lens
  • Reflex mirror
  • Shutter
  • Image sensor
  • Matte focusing screen
  • Condenser Lens
  • Pentaprism
  • Eyepiece/Viewfinder
DSLR

How a DSLR works

  • Light enters the camera through the lens and strikes the reflex mirror
  • The reflex mirror reflects the light vertically upward to the focusing screen
  • Light passes through focusing screen and enters the pentaprism which is a block of glass
  • Pentaprism redirects the light through two separate mirrors then diverts it towards viewfinder
  • The viewfinder gives you the live preview of the image
  • Now when you click the button to take a photo the reflex mirror flips upward and blocks the vertical path of light to keep it straight towards image sensor
  • The shutter opens up and the light reaches the image sensor

Some of the advantages of DSLR camera over simple digital camera:

  • Speed
  • Picture Quality
  • Interchangeable lenses
  • Optical Viewfinder
  • Large ISO range
  • Easy editing
  • Low noise
  • Faster focusing
  • High quality in low light
  • Ability to use filters
  • Dust removal system
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