NightWaves made a comment on my barn door tracker YouTube video.
As long as the hinge is polar aligned I don't think level is required. Just a habit from using an AZ ALT with degrees for adjustments. If not going the fine adjustment route tapping might work. I've got the cheat of a heavy duty Celestron tripod with fine tune adjustment on it but no bubbles.
I replied.
Indeed, I do not worry about level. I do not have bubble levels on the barn door. But I do worry about the precise polar alignment with increasingly long exposures.
Hope that helps.
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