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rolandlinda3
Carpal Tunnel
Reged: 01/24/06
Posts: 1596
Loc: Crozet VA 22932
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Re: Summary--VideoCAM Use on Non-guiding Mounts
07/30/08 10:51 AM
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The f ratio for the Dob is 4.5. You can see plenty of results/sketches using the dob and the MallinCAM cameras by going to Members Galleries and doing a search on rolandlinda3 (name of gallery). There is a sketch of the Lagoon, but as expected it only covers the core region because the aperture and focal length yields a FOV that is quite a bit smaller. While the details are EXCELLENT with this combination, to use the setup unguided would be like chasing a cat after a mouse. So it is our primary scope for video use and study, but it is not the scope choice for wide field nor is it good for unguided scope applications, which is the subject of this thread. Fundamentally, narrower field of view and better light gathering generally translate to poor use for unguided situations -- even though the scope may be excellent and the camera doing what it is supposed to.
Roland
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