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You are here:Home » Shutter of Digital Camera

By Abhishek Ghosh July 12, 2012 3:04 pm Updated on July 12, 2012

Shutter of Digital Camera

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Shutter of Digital Camera is a light-proof,mechanically movable element in a camera which controls the during of exposure time to make the image sensor exposed. Film cameras used rotating shutter for the same function. In Digital cameras, the shutter mechanism is implemented electronically.

 

Technology implemented in Shutter of Digital Camera

 

Shutter is immediately situated behind the lens and actually were used in some old film cameras. Shutters in front of the lens is not in use now and were used in the early days of photography.

Central locking Shutter has flexible curved blades which open radially for the time duration of exposure. The central locking is usually located between the front and the rear lens group.

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There are various other Shutter mechanisms like Diaphragm shutter, rotary disc shutters etc.

 

Importance of Shutter mechanism of a Digital Camera

 

Shutter of Digital Camera

 

The control of slow shutter speeds with remote trigger or cable release can be found under the name B (ulb), T (ime), M (oment) trigger for regular exposure time. Mechanically controlled shutter speeds are usually are focal plane shutter which opens up to 1/1.000 second, central locking shutter on the other hand gives up to 1/500 second. The shortest purely mechanical shutter speed is 1/4000th seconds.

Shutter lag is the time between pressing the shutter and the response of the camera to open the aperture. In old days this lag had an importance, but now this shutter lag has least importance in DSLR cameras. Shutter cycle is the whole process of pressing the shutter, opening up of the aperture and then coming back to neutral position again.

The life expectancy of a mechanical shutter, which is the number of shutter cycles it has undergone. In case of most digital SLR camera, there is a lifetime of the shutter system which can be approximately calculated from using various softwares. The importance is that, after a typical number of firing, the shutter mechanism starts to malfunction and this is an worthy point to check while buying an old DSLR camera.

 

SignatureTagged With camera shutter importance , shutter on digital cameras , what is a shutter on a digital camera , where is the shutter in dslr camera position
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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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Comments

  1. AvatarDoris says

    December 24, 2012 at 2:00 pm

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    Between your wit and your videos, I was almost moved to start my
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