Telescope

Discussion in 'Beyond the Basics' started by dsten, Apr 5, 2005.

  1. dsten

    dsten TPF Noob!

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    Hello all
    There's something I'm not understanding about hooking an slr up to a telescope or spotting scope. Isn't the magnification of the telescope set by the eyepiece? So, if you take off the eyepiece and put on an adapter and your camera, what is the magnification going to be?
    Thanks in advance
     
  2. Hertz van Rental

    Hertz van Rental TPF Noob!

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    The telescope itself has a degree of magnification, the eyepiece just increases this which is why you can get different eyepieces.
    Attaching a camera in place of the eyepiece makes the telescope work like a telephoto lens. To work out the degree of magnification you need to find out the focal length of the 'scope. This should be in the manufacture's technical specs - or you can use a tape measure.
    You may find some useful info here (it's a splendid site anyway).
    http://skyandtelescope.com/howto/imaging/default.asp
     

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