Does anyone know if these are self collimating? I have had trouble with my mirror star diagonal being collimated in my AR5 refractor and thought about buying a takahashi prism diagonal. Any ideas?
Prism diagonals
Started by matt elliott, 02/24/2007 11:13PM
Posted 02/24/2007 11:13PM
Opening Post
Posted 02/25/2007 06:44AM
#1
Matt I use a Williams optics 2" dielectric diagonal on my AR5 and the views are absolutely fabulous. I also use the 2" William optic eyepieces which to me is about as good as I will ever buy at this point. I could'nt be happier with the views I get. I suppose the naglers would be better but I can't imagine how, I am absolutely 100% satisfied with my W O . Cheers, Darrell
Posted 02/27/2007 09:05AM
#2
matt elliott said:
Does anyone know if these are self collimating?
No, they're not (at least no any more than mirror diagonals. If they don't reflect the centre line of one barrel onto the centre line of the other, they're miscollimated, be they prism or mirror diagonals.
If you want it to be well collimated, the optical design is the least of your worries. Quality (of the mechanical design and the assembly) is.
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