Quote:
Originally Posted by Kerosene
From the brief view of the stars that I had tonight, it seems that the problem is mostly horizontal. I was seeing two stars, next to each other, neither one of them appeared to be above or below the other.
Am I in for a collimation baptism by fire?
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Maybe yes!
It would be a bit unusual. OK, check carefully with the tests - stable on tripod, looking at that distant rooftop/gutter. Carefully look into each eyepiece in turn and inspect all edges of the field of view until you are absolutely sure how they differ - vertically, horizontally or both. Move them to put a small object at the left, top, right, bottom of the left field of view and see where it is in the right field of view. Try the test at a few different IPDs.
If you are out horizontally only, have a good look at the barrels. I have seen a pair of binoculars with one of these screwed on cross-threaded so it was pointing like Marty Feldman's eyes!