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Byron Davies

M-52, NGC-7635, SH2-157, SH2-158, SH2-159, SH2-161, NGC-7510

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Photon Instruments 127mm f/9 Achromat

Posted by Clayton Cramer 04/16/2005 07:00AM

Photon Instruments 127mm f/9 Achromat

Like many Chinese achromats, bargain-priced optics, less impressive mechanical components.


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