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Old 02-05-2010, 10:29 PM
Bolts_Tweed (Mark)
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Bolts_Tweed is offline
 
Join Date: Apr 2009
Location: Banora Point NSW
Posts: 480
gday mate - I am pretty sure I have one of the 2 inch backs with the lock ring and a straight 2 inch photographic back out at the observatory.

Let me know if you cant get one and I will measure thread sizes etc when i am next out there.

Mark Bolton
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