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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

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Coronado BF thread size

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Fenrir
The Sun?
The Sun?
Posts: 10
Joined: Mon Sep 14, 2015 7:32 pm

Coronado BF thread size

Post by Fenrir » Sat Apr 08, 2017 6:25 pm

Hello,

Could someone tell me what the thread size + pitch of a Coronado BF is please? I have unscrewed the BF
from a Coronado diagonal and want to make an adapter for it.
The thread diameter measures around +/- 33mm.

Thanks,

Pieter

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