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Thread: Pictures very dark with Light tent setup

  1. #1

    Default Pictures very dark with Light tent setup

    Hi all,

    DIYed my own studio light tent but don't know why the pictures taken are so dark.

    Setup is as follows. 1x 24w Energy saving / 125w overhead, 2x 23w Energy saving /120w on both sides. Aluminium foil on the front right side.





    Pictures taken.... very dark.






  2. #2

    Default Re: Pictures very dark with Light tent setup

    Tried using a slower shutter speed?

  3. #3

    Default Re: Pictures very dark with Light tent setup

    Quote Originally Posted by subxero View Post
    Tried using a slower shutter speed?
    Thanks for the advise, but i am using point and shoot camera; Canon A580 in manual mode, so not sure how to adjust shutter speed. Do you mean pushing up the ISO? ISO reads about 80 per shot for the above pics.
    Last edited by torque6; 25th March 2010 at 09:54 AM.

  4. #4
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    Default Re: Pictures very dark with Light tent setup

    Quote Originally Posted by torque6 View Post
    Thanks for the advise, but i am using point and shoot camera; Canon A580 in manual mode, so not sure how to adjust shutter speed. Do you mean pushing up the ISO?
    In manual mode, you should be controlling shutter speed, aperture and ISO yourself.
    The shutter speed should appear as a fraction for the pics you have taken.

    For example, if the shutter speed was 1/500, you can try setting it to 1/250 to get a brighter image.

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    Moderator ortega's Avatar
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    Default Re: Pictures very dark with Light tent setup

    try using the exposure compensation to +EV

  6. #6

    Default Re: Pictures very dark with Light tent setup

    Looking at your setup, it seems that you top light is too far behind, you might want to move it forward to cast the shadow backwards. The above threads are correct. You need to reduce the shutter speed to get a brighter image.

  7. #7

    Default Re: Pictures very dark with Light tent setup

    Quote Originally Posted by torque6 View Post
    Thanks for the advise, but i am using point and shoot camera; Canon A580 in manual mode, so not sure how to adjust shutter speed. Do you mean pushing up the ISO? ISO reads about 80 per shot for the above pics.
    The lightbox is quite white, so it might have fooled the camera to expose it to grey (ie. which is why its underexposed)

    Put in some exposure compensation. Find the Ev button ( or +/- button) and add about +1.
    Should work in Av mode as well.

  8. #8
    Senior Member Numnumball's Avatar
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    Default Re: Pictures very dark with Light tent setup

    Try to compensate EV or lengthen ur shutter duration (e.g 1/1000 to 1/125): -

    U should increase exposure compensation as the camera tends to turn overall bright scene to midge, bear in mind that anything that is brighter in intensity in the frame in real life can be dark in the eventual pic if the shutter duration is short or bright if the shutter duration is long. As cam will always try to judge the exposure by using the principle of 18% gray and neutralize eveything to midge..So u need to dia in ur EV accordingly or employ a longer shutter duration..

    HTH
    Last edited by Numnumball; 25th March 2010 at 10:34 AM.
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    Default Re: Pictures very dark with Light tent setup

    just a note, your white balance is slightly off. the white looks blue. u may want to do a custom if your P&S supports it.
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  10. #10
    Deregistered allenleonhart's Avatar
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    Default Re: Pictures very dark with Light tent setup

    Quote Originally Posted by pinholecam View Post
    The lightbox is quite white, so it might have fooled the camera to expose it to grey (ie. which is why its underexposed)

    Put in some exposure compensation. Find the Ev button ( or +/- button) and add about +1.
    Should work in Av mode as well.
    agree with this one. what i suggest is u take with a various of exposures and just pick the best one.

    and u can photoshop it later with curves, setting white point as the white bg.

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