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Set on his APM140-BINO!
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Comment by Matsumoto/管理者のコメント;
Congratulations on the completion of the super-simple-mechanism!
Innovation of Astronomical Telescope
正立ミラーシステム(EMS)を開発した松本龍郎のサイト。 たった2回の反射で天体望遠鏡の像を正立像にします。
Tatsuro Matsumoto; Inventor of the EMS, Erecting Mirror System. EMS offers non reversed upright image with no additional undesirable abberations.