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Old 30-12-2020, 09:29 PM
Rainmaker (Matt)
Strictly Visual......

Rainmaker is offline
 
Join Date: Jun 2019
Location: Oz
Posts: 615
Yes Glen, they have corners, which make it possible to identify the four separate reflections when using an autocollimator........ two face left, the other two reflections face right so you can identify them when collimating.....

https://www.catseyecollimation.com/acexplain.html

Last edited by Rainmaker; 30-12-2020 at 09:51 PM.
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