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09-10-2015, 01:32 PM   #1
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Location: Boston
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420mm f/6.5 for $600? has the following for sale:

Might make for a decent birding scope.


09-10-2015, 02:30 PM   #2

Join Date: Jan 2011
Location: New York
Posts: 4,630
I can confirm that it works well for astrophotography, based on the results a friend gets with it.

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420mm f/6.5, k-mount, pentax lens, slr lens
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