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Sunday, April 1, 2007

Digital Exposure Essentials


Getting the exposure right is at least as important when shooting digital as when shooting film

Digital Exposure Essentials

Digital Exposure EssentialIn order to have a proper exposure, how much light needs to hit the image sensor of your camera when you press the shutter release? This is the basic question of exposure, and two factors determine the answer: ƒ-stop and shutter speed. You can let the camera choose these for you or choose them yourself in one of your camera's manual modes. Either way, the amount of natural light at your location must first be measured—and measured accurately.

There’s a common misunderstanding that if you capture images in RAW format as opposed to TIFF or JPEG, you don’t have to worry about proper exposure because you can fix any problems later in editing. This certainly isn’t true. The image sensor of your camera is only capable of handling a certain range of exposure, from light to dark. Go past that in either direction, and the sensor simply isn’t going to capture those details. And no editing program can fix what was never there to begin with. The goal is to capture the best possible images initially, so you maximize your camera’s capabilities and have minimal problems when editing them in your computer. Here are some tips to help you do that.

 


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