Does a digital camera still use a lens shutter or focal plane shutter?

Discussion in 'Digital Photography' started by aniramca@gmail.com, Sep 4, 2007.

  1. Guest

    With the new technology in digital imaging and sensors, does a digital
    camera utilize a physical lens shutter (or focal plane shutter in an
    SLR) to let the light passes to the sensor? Or, can the image sensor
    now be electronically turn on and off to allow for the light to
    register in the sensor?
    Thanks for info.
     
    , Sep 4, 2007
    #1
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  2. DBLEXPOSURE Guest

    <> wrote in message
    news:...
    > With the new technology in digital imaging and sensors, does a digital
    > camera utilize a physical lens shutter (or focal plane shutter in an
    > SLR) to let the light passes to the sensor? Or, can the image sensor
    > now be electronically turn on and off to allow for the light to
    > register in the sensor?
    > Thanks for info.
    >


    A shutter.
     
    DBLEXPOSURE, Sep 4, 2007
    #2
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  3. peter Guest

    <> wrote in message
    news:...
    > With the new technology in digital imaging and sensors, does a digital
    > camera utilize a physical lens shutter (or focal plane shutter in an
    > SLR) to let the light passes to the sensor? Or, can the image sensor
    > now be electronically turn on and off to allow for the light to
    > register in the sensor?


    DSLR uses a shutter just like SLR. That is why they have difficulty showing
    preview on LCD screen.

    Compact cameras have no problem with preview. Educated guess says they have
    no mechanical shutter.
     
    peter, Sep 4, 2007
    #3
  4. wrote:
    > With the new technology in digital imaging and sensors, does a digital
    > camera utilize a physical lens shutter (or focal plane shutter in an
    > SLR) to let the light passes to the sensor?


    Yes.

    > Or, can the image sensor
    > now be electronically turn on and off to allow for the light to
    > register in the sensor?


    Yes.

    Depends on type, make, and model.

    jue
     
    Jürgen Exner, Sep 4, 2007
    #4
  5. ASAAR Guest

    On Mon, 03 Sep 2007 19:49:25 -0700, wrote:

    > With the new technology in digital imaging and sensors, does a digital
    > camera utilize a physical lens shutter (or focal plane shutter in an
    > SLR) to let the light passes to the sensor? Or, can the image sensor
    > now be electronically turn on and off to allow for the light to
    > register in the sensor?
    > Thanks for info.


    Both mechanical and electrical shutters are used. Some cameras
    such as some of Nikon's DSLRs use both types of shutters. Most P&S
    cameras don't use mechanical shutters. For a good explanation of
    the whats and whys, see "The Importance of Flash Sync Speed" at :

    http://www.kenrockwell.com/tech/syncspeed.htm
     
    ASAAR, Sep 4, 2007
    #5
  6. Tony Polson Guest

    "peter" <> wrote:
    >
    >DSLR uses a shutter just like SLR. That is why they have difficulty showing
    >preview on LCD screen.



    Within 2 years, the majority of new DSLRs will have live preview.

    Go figure.
     
    Tony Polson, Sep 4, 2007
    #6
  7. Marvin Guest

    Re: Does a digital camera still use a lens shutter or focal planeshutter?

    wrote:
    > With the new technology in digital imaging and sensors, does a digital
    > camera utilize a physical lens shutter (or focal plane shutter in an
    > SLR) to let the light passes to the sensor? Or, can the image sensor
    > now be electronically turn on and off to allow for the light to
    > register in the sensor?
    > Thanks for info.
    >

    Most digicams have no physical shutter. That is why your
    should avoid pointing the camera at the sun at any time. You
    can ruin the sensor.
     
    Marvin, Sep 4, 2007
    #7
  8. Frank Arthur Guest

    "Marvin" <> wrote in message
    news:fJfDi.4189$es2.3355@trndny09...
    > wrote:
    >> With the new technology in digital imaging and sensors, does a
    >> digital
    >> camera utilize a physical lens shutter (or focal plane shutter in
    >> an
    >> SLR) to let the light passes to the sensor? Or, can the image
    >> sensor
    >> now be electronically turn on and off to allow for the light to
    >> register in the sensor?
    >> Thanks for info.
    >>

    > Most digicams have no physical shutter. That is why your should
    > avoid pointing the camera at the sun at any time. You can ruin the
    > sensor.
     
    Frank Arthur, Sep 4, 2007
    #8
  9. Frank Arthur Guest

    "Marvin" <> wrote in message
    news:fJfDi.4189$es2.3355@trndny09...
    > wrote:
    >> With the new technology in digital imaging and sensors, does a
    >> digital
    >> camera utilize a physical lens shutter (or focal plane shutter in
    >> an
    >> SLR) to let the light passes to the sensor? Or, can the image
    >> sensor
    >> now be electronically turn on and off to allow for the light to
    >> register in the sensor?
    >> Thanks for info.
    >>

    > Most digicams have no physical shutter. That is why your should
    > avoid pointing the camera at the sun at any time. You can ruin the
    > sensor.


    Then what keeps the image from forming on the CMOS when you aren't
    taking a picture?
     
    Frank Arthur, Sep 4, 2007
    #9
  10. Pete D Guest

    "Frank Arthur" <> wrote in message
    news:wpgDi.80054$...
    >
    > "Marvin" <> wrote in message
    > news:fJfDi.4189$es2.3355@trndny09...
    >> wrote:
    >>> With the new technology in digital imaging and sensors, does a digital
    >>> camera utilize a physical lens shutter (or focal plane shutter in an
    >>> SLR) to let the light passes to the sensor? Or, can the image sensor
    >>> now be electronically turn on and off to allow for the light to
    >>> register in the sensor?
    >>> Thanks for info.
    >>>

    >> Most digicams have no physical shutter. That is why your should avoid
    >> pointing the camera at the sun at any time. You can ruin the sensor.

    >
    > Then what keeps the image from forming on the CMOS when you aren't taking
    > a picture?


    Nothing. And some are not CMOS.
     
    Pete D, Sep 5, 2007
    #10
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