Working with aspect ratio

The ratio of the length to width of your image is defined as its aspect ratio.…For example, your HDTV has a different aspect ratio than what your camera shoots.…With its 16:9 aspect ratio, your HDTV shows a wider image than the 3:2 aspect ratio of your camera.…Now, if you have a point-and-shoot camera, it probably has an even narrower aspect ratio…of 4:3, which incidentally is the aspect ratio of standard definition TV.…When you're shooting JPEG images, you can choose something other than the camera's native 3:2 aspect ratio.…

If you're in live view, the camera will show you guidelines for the aspect ratio that you've chosen.…Here in the fourth page of the shooting menu, I have an option for aspect ratio, which is…currently set to its default of 3:2. 3:2,…of course, is the aspect ratio of the camera's sensor, of the LCD screen; it's the native resolution of the camera.…It's also the aspect ratio of traditional 35 mm film.…If I pop this open, I get some up some other options; 4:3, the aspect ratio of standard…