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Shaun
03-04-2009, 03:05 PM
Hi,

To know what size tube rings i would need for my 8" newt should i just measure the diameter
rogerg
03-04-2009, 03:23 PM
Yeap, the outside diameter.
:thumbsup:
mldee
03-04-2009, 04:37 PM
Tube rings seem to come in pretty standard sizes, for an 8" OTA you would need the 230mm rings.
leinad
03-04-2009, 06:11 PM
http://www.myastroshop.com.au/products/details.asp?id=MAS-035