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Does anyone know what the (r+l) means?
Posted : March 7, 2022 3:53 pm
Right and Left
I'd say the sum of the vertical angle on both left and right faces was out of spec.
Posted : March 7, 2022 8:18 pm
Topic starter
I'd say the sum of the vertical angle on both left and right faces was out of spec.
Thanks for replying! I never paid attention to the (r+l) before until someone pointed it out. In my opinion, it's too much information because I already know I'm taking direct and reverse readings. Who came up with the terms left face and right face??ÿ
Posted : March 8, 2022 6:25 pm
Those terms are really old - predates glass circle instruments - and probably goes back to the days of vernier instruments where the circle was physically on one or other side of telescope and where you stood to read it.
Posted : March 8, 2022 6:41 pm