Glossary of Digital Photography Terms

Can’t remember the difference between a pixel and a bit? Resolution and resampling? Turn here for a quick refresher on that digital photography term that’s stuck somewhere in the dark recesses of your brain and refuses to come out and play.

For more information about a topic, check the book’s index.

24-bit image: An image containing approximately 16.7 million colors.

Adobe RGB: One of two color space options available on your camera; determines the spectrum of colors that can be contained in the image. Adobe RGB includes more colors than the default option, sRGB, but also involves some complications that make it a better choice for advanced photographers than beginners.

AEB: Auto Exposure Bracketing, a feature that automatically records three exposures: one at the selected exposure settings, one using settings that produce a darker image, and one using settings that produce a brighter image. It’s a useful tool for ensuring that at least one exposure is good when you shoot in tricky lighting.

AE lock: A way to prevent the camera’s autoexposure (AE) system from changing the current exposure settings if you reframe the picture or the lighting changes before the image is recorded.

AF mode: Short for autofocus mode. A setting that determines whether the camera locks focus when you press the shutter button halfway, continuously adjusts focusing up to the time you take the shot, or chooses which of the two strategies to employ. See ...

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