The majority of DSLR's and compacts on the market today, allow you to adjust your exposures - bracketing is a means of adjusting your DSLR camera or compact camera so that you have a little more light or less light entering the lens to that suggested by your IR camera.
Bracketing will actually help you further when photographing in infrared - allowing you to take several infrared images at slightly different exposure settings ... simply adjust your exposure for each shot - you might want to adjust your shutter speed or your aperture depending on the subject you are photographing.
If you need to keep everything in sharp focus, you would opt to keep your shutter speeds fast whereas if you want to blur movement, you would set your preferred shutter speed to something quite slow and adjust your aperture.
AEB stands for auto exposure bracketing and this is where you can set your camera to automate your bracketed shots - in other words, each time you press the shutter button, your camera will capture your infra-red image at an adjusted exposure setting - the AEB settings usually allow for a series of 3 shots to be captured.
In a nutshell, press the shutter button to get a 'normal' exposure, an 'under' exposure and an 'over' exposed shot.
Most cameras which can be used for digital infrared photography actually have built-in bracketing but rest assured, if your camera doesn't have this feature, it will more than likely have an exposure compensation feature which will allow you to manually adjust your exposures whilst using one of your auto exposure modes.
TIP: DSLR's and advanced compacts can be set to 1/2 f-stop increments and / or 1/3 f-stop increments.
Happy Bracketing
Jane Newman.co.uk
Jane Newman.co.uk
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