In my demonstration setup, the cameras were placed on a shelf which ended up 6 feet 4 inches from the wall behind me (+ - 2 inches). In the wide photo below, I marked off the back wall in feet from the corner on my left. Use that to compare the view each camera has from their individual images on the page. Since most of the cameras do not list the focal lengths of their lenses, and I didn't take measurements on earlier cameras, all we can do is estimate the angles from these views.

If you want to spend some time to find out what a given camera will show in your room you could do the following experiment.

1. Measure 6 feet 4 inches from where your camera will sit, through where you will be sitting
2. Lay a tape measure on the floor perpendicular to your camera's line of site
3. Compare your room layout to the demo images on this page
4. Stretch 2 lengths of string from your camera position to the point along the tape measure to represent the field of view for the camera you are interested in
5. Or you could just eye-ball it

(All the markers on my image are truly one foot apart on the wall. They appear to be wider on either end due to the distortion of the wide angle lens in the camera used for the test image.)

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