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Don't Forget Focal Reducers

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Posted by Daniel Johnson on October 11, 2002 03:19:38 UTC

One good way to a broader image with a Meade or Celestron Schmidt-Cassegrain is to get the f/6.3 focal reducer, which both shortens the focal length and corrects some off-axis aberrations. Whatever eyepiece you have, it will give a broader, lower-power field. With the 35mm Panoptic you already have, reducing the f-ratio to 6.3 will give a magnification of only 45--so low that you could use it only under the darkest skies, since your pupil can barely dilate to accept such a large exit pupil. You might even need a shorter-focal-length eyepiece, like 26mm.

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