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Hi Alex, I've been around the block more times than I can count, being in my 66th yr of AP, and over the years have tried every method of PA known to
man. The reason my PA is inconsistent is that I am using a photographic
tripod without any slow motion controls. The two axes are a bit sticky to
move by hand making accurate PA difficult, so if I am lucky enough to get close I leave it at that. I am getting better with a decent compass[local
deviation is only 1 deg] and a digital inclinometer.
I'll just keep soldiering on.
raymo.
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