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Time exposures at Night?

eddiestardust
Apprentice

Hi,

 

I just purchased a Canon EOS Rebel T3 1100 D Camera and I would like to know if I can take time exposures.

I'm an Astronomer and I will be trying to take exposures of the sky at night.

 

Any help would be greatly appreciated!

 

Thanks,

 

Ed Murray

3 REPLIES 3

Tim
Authority

eddiestardust,

You would be able to use the EOS Rebel T3 to take night time exposures.  You simply set it up on a tripod, lock it in place and use the BULB setting while the camera is in Manual. 

 

This [the Bulb setting] will let you hold the shutter open as long as you wish.  To avoid camera shake you may want to use a remote to trigger the shutter, such as  RS-60E3.  If you are using an Image Stabilized lens, be sure to deactivate the IS function.

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Lunaaby11
Apprentice

The idea of a tripod is essential; About the expousure, you need to decide between expousure and the aperture of the diaphragm and make a kind of "perfect mix", in this way you could capture all the light... I think the only way to know it is to try a few times.

eulothg
Contributor

The Two Hosers Photo Show just did a podcast on photographing star trails.  You might find it useful...

 

http://twohosers.com/the-two-hosers-photo-show-107-star-trails/

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