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Has Anyone seen this Polarex/Unitron turret eyepiece holder before?
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21-11-2012, 06:13 PM
UniPol
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Join Date: Jul 2006
Location: Lithgow, NSW
Posts: 1,685
Unihex's/RES's use the same prism diagonal as standard right angle diagonals so there is no difference in back focus.
UniPol
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