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1200 tracking accuracy at 3100mm focal length
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Bobby Middleton <bobm@...>
I've tried a Nikon teleconverter with my 12.5" f/7 newt on the AP 1200 GTO
mount. It figures out to be 3100mm focal length at f/10 with the teleconverter. I did some 2 hour exposures of NGC 891 and M-82. Tracking was excellent. The AP 1200 is certainly up to the difficult task of tracking at long focal lengths. See the pics at: NGC 891 http://www.koyote.com/users/bobm/ngc891.htm M-82 http://www.koyote.com/users/bobm/m82.htm Bobby Middleton |
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John J. Kasianowicz <surpher@...>
Nice images! The picture of M82 has a lot of detail.
I've tried a Nikon teleconverter with my 12.5" f/7 newt on the AP 1200 GTOfocal lengths. See the pics at: |
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