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Help Identifying Mirror
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15-06-2017, 08:47 PM
Wavytone
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Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
The box suggests home-made, though the fact someone felt the urge to write the focal ratio and focal length on the back does suggest it was made by possibly a small-volume local shop for Astro-Optical, there were one or two at various times.
Wavytone
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