Posted: Sat Sep 18, 2021 12:20 pm Post subject: |
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eggplant wrote:
jamaeolus wrote: |
This is just a guess, but the little hole in the side of the focus knob should have a grub screw. A small screw that "locks" the knob onto the focus shaft. If that is loose it might give the symptoms you describe. it is probably an allen type but is possibly flathead orperhaps philips. See if you can tighten that screw. |
Apart from this + any other defects, you might need to adjust your expectations- telescopes with this style of focusing knob focus very slowly, by design. Allows accuracy, but slow. |