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Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Daniel Johnson on April 15, 2003 18:44:02 UTC |
Most Newtonian reflectors don't have enough in-travel in the focuser to allow you to reach focus with a prism inserted, though a few might. Still, there are drawbacks to long focuser tubes on Newts--they stick into the light path when racked in, and require a larger secondary mirror if focus is placed waaaaay out of the tube, as it would need to be for a prism to work well. |
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