What is the difference between telescope zoom and zoom lenses in reference to canon lense for rebel xti?
Monday, May 3rd, 2010 at
12:27 pm
that's what i meant telephoto zoom versus reg zoom. i assume the telephoto zoom is much better?
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Hellooooooo Nurse!
Telescope lense is a fixed Focal length like 200, 500 whatever
Zoom lense are a vriable focal length meaning the go from 25-70, 70-210,200-500
Tele scope vs. Tele photo. A scope is generally used to view using your eye. While there are adapters for using a camera on a telescope, there is no simple way to control the aperture and none of the automatic features of your camera will work except the Aperture Priority exposure setting.
A photo lens is a much more involved piece of glass. It has to cover the whole negative or sensor area with even light, excellent sharpness and no aberrations. In addition, the telephoto lens has to have an automatic aperture and have a mounting ring that matches the camera body you are using.
This is but a short list.
Umm telescope zoom is a zoom lenses….. I dont get the question. Theres telephoto lenses, and a telescope attachement but I really dont get your question.
Telephoto is a lenses that focuses on a subject. Most people think it means to zoom in on a subject but telephoto is meant not to zoom but to fill a frame with a single or very few subjects. Telephoto is great for protraits, sports, and wildlife photography.
Wide-angle through telephoto zoom is a general purpose lens. Its great for most events and is usually a walk around lens. 24-105mm is an example of a wide angle through telephoto.
Wide angle isnt better than telephoto. It depends on what you need the lens for. Thats why pros carry more than one camera with a telephoto and another camera with a wide angle.