Introduction of my Telescope
The binocular Telescope in the front page is the ultimate usage of the EMS.
EMS is the Erecting Mirror System invented by me,Tatsuro Matsumoto,Japan.
EMS offers non-reversed upright image with only two reflections.
If you want any further information, please mail me.
It is my pleasure to share my thrilled exprience of EMS with astro-friends.
You can find EMS series and other systems in the next page.

direct image of Astronomical Telescope reversed image by diagonal prism non-reversed upright image by EMS