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Old 01-06-2020, 07:25 PM
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billdan (Bill)
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billdan is offline
Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,538
I guess for daytime checking you would need some sort of target to aim at. Like a grid of some kind bolted to a fence that you can point the scope at.
The image taken of the grid would show tilt if the lines are not parallel.

Like this Sudoku grid but bigger.
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Last edited by billdan; 02-06-2020 at 12:42 AM. Reason: grammar
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