DSLR full form Digital Single-Lens Reflex
A digital single-lens reflex camera is
a digital camera that combines the optics and the mechanisms of a single-lens
reflex camera with a digital imaging sensor, as opposed to photographic film.
DSLR is an
abbreviation of digital single-lens reflex.
During the 2000s, DSLRs highly replaced
film-based SLRs, and in the early 2010s, regardless of the rising acceptance of mirrorless system cameras, DSLRs persists the most general type of
interchangeable lens camera in use.
In 1975, Steven Sasson the Kodak engineer
developed the first digital still camera, which used a Fairchild 100×100 pixel
Charge-Coupled Device.
Components of DSLR Camera
Following are the main components of a DSLR
camera,
·
Lens
·
Reflex mirror
·
Shutter
·
Image sensor
·
Matte focusing screen
·
Condenser Lens
·
Pentaprism
·
Eyepiece/Viewfinder
Working of DSLR
·
Through a medium of
lens, light enters the camera and collides with the reflex mirror.
·
The reflex mirror
throws back the light to the focusing screen in the vertically upward
direction.
·
The passing of light
happens through focusing screen and it enters the block of a glass which is a
Pentaprism.
·
Pentaprism directs the
light towards different direction through two discrete mirrors then redirects
it towards viewfinder.
·
The viewfinder
provides a user the live preview of the image.
·
The reflex mirror
overturns upward and obstructs the vertical path of light to keep it directed
towards image sensor, when a user clicks the button to take an image.
·
The light reaches the
image sensor, when the shutter opens up.
Advantages of DSLR
·
Speed and picture
Quality will be good
·
Interchangeable lenses
·
Optical Viewfinder
·
Large ISO range
·
Easy editing and low
noise
·
Faster focusing and
high quality in low light
·
Ability to use filters
·
Dust removal system
Disadvantages
·
Size is large and
weight is heavy
·
Strenuous in
accomplishing simple tasks
·
Hard to carry during
shoot
·
Complicated in
settings
·
Cost is higher
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