4 
Using the LCD Monitor
Digital photography is all about instant gratification. You snap a picture, and it appears on your LCD monitor almost instantaneously. This gives you a chance to see whether you captured the image you envisioned, or you have an overexposed, out-of-focus dud on your card. And your LCD monitor can do much more than just display your picture. You can get all sorts of useful information, such as the shutter speed, aperture, and other pertinent information about the image. You can even display a spiffy graph known as a histogram that shows the distribution of pixels from shadows (the darkest tones) to highlights (the brightest tones).
The information you can display on the camera LCD monitor gives you the opportunity to examine each image and make sure you got it right “in the camera.” Photographers should always do their best to get it right in the camera and rely as little as possible on programs like Adobe Photoshop ...
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