What is bulb mode on digital camera

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By: hypergurl.com

If you recall an earlier post on night photography, we talked about the importance of setting your camera's shutter speed to full seconds. This enables enough light in so your photograph doesn't end up too dark or black. Some camera's however, only...

Added: 30 April 2008 Views: 189

Path : Art

Photography

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What is bulb mode on digital camera

Digital camera bulb mode - what is it and when would you use it.

This enables enough light in so your photograph doesn't end up too dark or black. Some camera's however, only allow you to set a shutter speed of up to 30 seconds maximum. Note, this means the camera will take a full 30 seconds to shoot the photograph. But what if you want to set your shutter speed for longer than 30 seconds? This is where bulb mode comes in. Bulb mode lets you take a photograph using longer than 30 second exposures.

Take this image below for example.

example of long exposures

This photograph is a good examle of long exposures as it was taken over 213 seconds. Astrophotographers who enjoy taking photo's of stars, moons and comets, also make effective use of bulb mode as well. Photographing the sky at night time can easily involve exposure times that last hours.

When you put your camera on bulb mode (check manual) the shutter will remain open for as long as you keep the shutter release button pressed down. Of course one problem with this is that you don't want to be standing there pressing the shutter button down for 213 seconds. Therefore I recommend using a remote shutter release. Many remote shutters that are made for SLR digital camera's can be locked in place. Before purchasing a remote shutter release make sure it has a locking option. This locking replaces the need for you to hold the button down. Then when times up, you simply need to unlock the remote, releasing it to finish the shot.

Quick Summary:

What is bulb mode?

Bulb mode allows you to take a longer exposures than your automatic shutter settings normally allow.

When should you use bulb mode?

When photographing the horizons at night time, such as when taking images of the stars or moon etc. Or when you need to increase your shutter speed longer than shutter priority allows you to.

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What is bulb mode on digital camera
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