Thread: New ultra-flat eyepiece series from APM
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Old 30-06-2017, 10:54 PM
Wavytone
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New ultra-flat eyepiece series from APM
http://www.apm-telescopes.de/en/eyep...eyepieces.html

There's a thread over on CN about these, they were designed specifically for APM and the internal construction is shown.
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