Quote:

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One "relatively" safe means to measure the insertion depth of a late model Visual Paracorr while at its lowest height setting on the tunable top would be to simply place a cotton 'Q'-tip down the side until it rests by gravity on the lens element, and then mark it at the shoulder junction. Then remove it, and stand it up (without any downward force applied), and measure from the table top to the mark on the 'Q'-tip.

CAUTION / WARNING: Again, I warn that I would not wish or intend that anyone scratch a Paracorr in attempting to measure it.

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Depth is 49mm or 1.93"(about as accurate as I can be) between center of lens and shoulder of 2" insertion barrel, tunable top in place at its lowest setting.
Thanks for the Q-Tip idea--I went ahead and cleaned the lens at the same time. It had a lot of dust on it.

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Don Pensack
12.5" Truss Dob, 5" Maksutov
Sustaining Lifetime IDA member, TeleVue junkie

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