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Old 07-06-2020, 09:36 AM
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Sunfish (Ray)
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Tilt diagnosis

Hoping for a little more advice. A little lopsided tilt. Here are two images of the same object , one with the camera on the West side of the mount almost upside down, and the inverted view after a flip from the camera on the East side of the mount. Shows tilt on different sides of the image.

I think perhaps this is focuser movement in my FS102.

Any other suggestions? Joshua has fixed my other tilt problems ,making a better 72 mm OAG to Tak tube adapter ( plenty of stars and guider camera focus travel now ) and every thing else is threaded together with zwo adapters.
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Old 07-06-2020, 02:19 PM
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Joshua Bunn (Joshua)
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Hi Ray.
If the only thing that changed was a meridian flip, you're probably right, either tube flexure (colimation) or image train flexure. Try taking an image at the zenith and an image at 45 degrees altitude and compare them...


Josh
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Old 07-06-2020, 08:21 PM
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Sunfish (Ray)
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Thanks Joshua. I will tighten up the focuser and test as suggested.
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