DSLR Full Form

By | May 20, 2020
DSLR Full Form

DSLR Full Form is Digital Single-Lens Reflex camera. It is a digital camera that functions based on combining the optics and the mechanisms of a single lens reflex camera with a digital imaging sensor. A single lens reflex camera is a one which uses a mirror and Prism system that enables the photographer to view the picture through the lens and capture it. In the reflex design, light travels through the lens and then to a mirror that intends to send the image to the viewfinder. The single lens helps the viewfinder present an image that will be the same as the image captured by the camera’s sensor.

DSLR Full Form

Design of a DSLR camera

The key components of a DSLR camera and their functioning are:

  • Lens– Light enters the camera through the lens and strikes the reflex mirror
  • Reflex mirror– The reflex mirror reflects the light vertically upward to the focusing screen
  • Shutter- The focal-plane shutter opens and the projected image is captured.
  • Image sensor– Converts light received on the camera into a digital image
  • Matte focusing screen and Condenser Lens – Light passes through focusing screen via a condenser lens enters the pentaprism.
  • Pentaprism – Pentaprism redirects the light through two separate mirrors then diverts it towards viewfinder.
  • Eyepiece/Viewfinder– The viewfinder gives you the live preview of the image.

Features in DSLR camera

  • Mode dial

Access to automatic scene-mode settings with modes such as program, aperture-priority, shutter-priority, and full manual modes. Scene modes vary from camera to camera, and often include landscape, portrait, action, macro, night, and silhouette, among others. 

  • Interchangeable lenses

The ability to exchange lenses, to select the best lens for the current photographic need.

  • HD video capture

Offers a movie mode capable of recording high definition motion video.

  • Live preview 

Ability to show the optical viewfinder’s image on the LCD.

  • Sensor sizes 

Image sensors in Digital Single-Lens Reflex camera, full form of DSLRs come in various sizes. The resolution of DSLR sensors is measured in megapixels. Extra features- This camera, in addition to having live preview, can record in the infrared and ultraviolet spectra of light, 3D photography

Advantages over the normal camera

  • Photo quality: Lack of noise in the photo (digital noise) due to larger image sensors is one advantage of DSLR over other cameras 
  • RAW mode: DSLR captures more detail, and allows more flexibility in editing photos enhancing overall photo quality.
  • Speed: DSLR camera focuses on the subject faster than a compact digital camera.
  • Frame rate is the number of frames per second a camera can take. A digital SLR camera is usually good at taking a sequence of photos of a moving subject and can keep re-focusing as the subject moves. 
  • DSLR turns on instantly as soon as it is switched on, compared to other cameras
  • When a compact camera zooms out, the motor whirrs and the lens extend slowly whereas Digital SLRs don’t work in this motorized way. The lens zooms by turning the lens barrel, giving an instant zoom.
  • Flexibility- The quality of the lens is poor about the lenses available to digital SLRs. Lenses on digital SLRs have wide apertures which are much wider than the zoom lenses on compacts. This means that the speed of the shutter can be faster because more light can enter the camera
  • The small flash on top of compact cameras is no match for the powerful flash that is available for digital SLRs. 
  • SLR also eliminates Red eye.
  • Dust entering the chamber is prevented through “dust cover” filter right behind the lens mount in DSLR.
  • Higher ISO settings.

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