I have worked out an equation for the Paracorr setting.
The setting = (0.365 + adp tk - dim f)/0.12
Where:
0.365 = three combined measurments of the Paracorr.
(I'll explain futher if anyone wishes.)
adp tk = flange thickness of the 1.25 to 2 inch adpter used.
0 if using a 2in ep.
0.16 in for the old style paracorr adapter.
I don't have this dimension for the new style. I'll add it if someone will measure it and send it to me.
dim f = the distance of the eyepiece focal plane (field stop) below the top of the ep barrel (surface that sets of the top of the draw tube).
Positive = focal plane inside draw tube,
negative = focal plane above draw tube.
(see TeleVue ep specs for a drawing, bottom of page).
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Re: List of Paracorr settings for all brands of EP
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