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| Category:
Lenses
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| Start Price: |
USD 69.99 |
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| Current Price: |
USD 69.99 |
| Reserve Price: |
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| Time Left: |
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| Bid Count: |
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| Buy It Now Price: |
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| Start Time: |
11/19/2008 |
| End Time: |
11/29/2008 |
| Location: |
Massapequa, New York |
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HIRSCH F/6.3 SCT FOCAL REDUCER Description Converts" f/10 focal ratios to f/6.3. Speeds up Photographic exposure time as much as 50% Expands the field of view on your SCT telescope Great for both visual and photographic use fully multi-coated 4 element lenses Screws onto the rear cell of your Schmidt- or Maksutov-Cassegrain telescope The Hirsch four element, multi coated f/6.3 focal reducer threads onto the rear cell of any Celestron Schmidt Cassergrain or Meade LX series mirror lens telescope or to those of other Schmidt Cassergrain telescopes brands It reduces the telescope's focal ratio by a factor of 0.63, F/10 telescopes are converted to f/6.3 What this means is the f/6.3 focal reducer enables a reduction of the photographic exposure time by about 50 % Our focal reducer will not only shorten the focal length of your telescope, but will also significantly improve the edge of the field of view by flattening the curved focal plane inherent in the Schmidt Cassergrain design. PICTURES BELOW TAKEN USING THE HIRSCH FOCAL REDUCER TELESCOPE USED WAS A MEADE 12" LX-200 AND CANON XTI DIGITAL CAMERA CLICK ANY PICTURE BELOW TO ENLARGE M-42 ORION NEBULA M-31 ANDROMEDA GALAXY M-13 HERCULES CLUSTER EXAMPLE OF USING A FOCAL REDUCER ON THE MOON BELOW. PICTURES TAKEN USING A CELESTRON 8" THE WHOLE MOON IS ABLE TO BE PHOTOGRAPHED OR VIEWED USING THE FOCAL REDUCER. WITHOUT THE FOCAL REDUCER JUST A PORTION OF THE MOON COMES INTO VIEW. THIS IS THE VALUE OF CONVERTING YOUR TELESCOPE FROM F/10 TO F/6.3 MOON COMPARISON THE MOON WITHOUT FOCAL REDUCER USING 8" CELESTRON MOON COMPARISON THE MOON USING FOCAL REDUCER WITH 8" CELESTRON Satisfaction Guarantee If for any reason you are not satisfied with your purchase, you may return it for a replacement or refund of the purchase price. Thanks for looking Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.
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