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Thread: How to take arbitrarily long exposures

  1. #1
    New Member
    Join Date
    Aug 2008

    How to take arbitrarily long exposures

    Are there any digital cameras being produced that have the option to keep the lense open for up to an hour [ or any length of time] to capture a subject in very low light

  2. #2
    Join Date
    Apr 2008
    California, USA
    Real Name

    Re: Help needed

    Nearly all digital SLR cameras have a "bulb mode", which does just that. You can take an exposure all the way until the camera battery runs out, if such a long exposure is needed. Even then, you could use a battery pack to extend the potential exposure time to twice as long.

    The only disadvantage is that longer exposures have an increased tendency for fixed pattern noise.

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