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I have one of these but my scope is good in appearance but had rough handling. enough to take a few teeth out of the drive gear. The images are terrible but the bump that took out the drive gear is probably what bumped the secondary mirror 1/8" from the center of the corrector. I suspect this is why the focus is always mush. does your 8001 have good optics?
Hi, Thanks for the interest. I have had this scope since 1989 bought new surplus from Paulis Wholesale Optics today named Astroptx. (www. astroptx.com). He still has B& L sct parts. Regarding my 8001. yes, the optics are great.(See my Mars images) Very good detail on Mars visually as well. Have been using it in the Haas unequal double star project and it has resolved some very tough targets such as 90 Herculis which is 1.5" with a secondary that is 3-1/2 magnitudes fainter than the primary making it a tough challenge for a 6- 8 inch. Hope you can get your scope straightened out. The classic scope forum has many experts at telescope repair/restoration..you might want to post there maybe someone can help . If the secondary holder is loose it can usually be tightened (or loosened) without removal of the corrector plate by exerting a pulling outward pressure on the outside secondary plate while rotating CCW to loosen or CW to tighten. My secondary rotated & loosened once while doing a collimation. However the hole in the corrector was the same diameter as the secondary holder so it remained centered. All I needed to do was rotate the outside plate CW and it snugged up...(there is a rubber gasket under the threaded inside portion of secondary holder that grips against the inside of corrector glass surface). Probably best to keep the same rotational orientation if possible. Astroptx might have the gear you need. It's worth a try. You can contact Fred Pauli at firstname.lastname@example.org. He accepts paypal. I bought a RA motor for the 8001 from him a year ago to replace one that was buzzing.
Thanks for the comments and good luck on getting your 8001 in shape.
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