Fujifilm S602 Zoom - Bulb setting ?

Discussion in 'Fuji' started by Alan, Feb 2, 2007.

  1. Alan

    Alan Guest

    Evening all

    I am not an accomplished (or even particularly experienced) photographer.

    Last year whilst out trekking in Wyoming I attempted to take some night
    time pictures of the starlit sky using my Fujifilm S602 camera but could
    not find a way of increasing the exposure beyond 15 seconds.

    Looking around I notice reference to a bulb setting - I suspect my
    camera does not have such a setting, but I would be grateful if any one
    could confirm my suspicions or a way around my problem.

    Kind regards

    Alan
     
    Alan, Feb 2, 2007
    #1
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  2. Suspicions confirmed. I think your camera, in common with most
    similar spec'd cameras, does not have a bulb setting. The reason?
    Sensor noise builds up too much over long periods - and some (most?)
    of this type of sensor will overheat, making the noise worse and
    potentially damaging it.. Most p&s cameras that *do* have a 'bulb
    setting, still have a time limit that will prevent hours-long star
    trail type shots.

    The only workaround is to take extra exposures and 'add' them, if you
    do this, you may also wish to look up 'dark frame subtraction'...
     
    mark.thomas.7, Feb 2, 2007
    #2
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  3. Alan

    Joel Guest

    Well, usually in order to control all the settings you may have to use
    MANUAL mode.
     
    Joel, Feb 3, 2007
    #3
  4. Alan

    Alan Guest

    Thanks for this - I suspected as much.

    Alan
    ps I assume p&s is "point and shoot"?
     
    Alan, Feb 3, 2007
    #4
  5. Alan

    Paul Mitchum Guest

    You can increase the exposure beyond 15 seconds by taking a number of
    15-second exposures and then 'stacking' them in Photoshop (or any other
    software that lets you do this). The noise is additive (each exposure
    adds a lot of noise), but it's better a grainy picture than no picture
    at all.

    Obviously, it works best on a tripod with a remote for triggering the
    shutter.

    HTH.
     
    Paul Mitchum, Feb 3, 2007
    #5
  6. Alan

    Canopus Guest

    I tried out the same with my Fuji S602Z in the Egyptian desert. Try
    adjusting the shot using an editor back home. I used Histogram adjustment
    (Levels in PS) and was amazed by the results. Converting to negative so
    that stars are black against white background also helps clarification,
    it's what astronomers do.
     
    Canopus, Feb 6, 2007
    #6
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