MATSUMOTO-EMS | 天体望遠鏡革命 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. I think my web-diary is a bottle-mail to be thrown into the cyber ocean. I beleive there must be someone in the world who shares my feelin