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Old 20-08-2015, 02:23 PM
glend (Glen)
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glend is offline
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 6,032
Why not use the 2" GSO ED Barlow which is 2x but customised based on extension used. The Baader MPCC MkIi will fit inside the extension ahead of the barlow. Low cost option if you have the coma corrector which already has the right spacing for the Canon.
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