ZWO OAG-L with 12*12 Prism & 1.25" Holder - OAG-L type-binocular-accessories About the TeleVue TV76 APO

About the TeleVue TV76 APO Refractor Telescope - Evergreen

Sturdy latitude adjustment screw with easy to read scale and integrated Bubble level

and innovative features that fully support large telescopes

Some correctors were designed mainly for astrophotography

This Sky Mentor Image Rectifier Universal Erecting Prism is a new roof design for Newtonian Reflector Telescopes

ZWO OAG-L with 12*12 Prism & 1.25" Holder - OAG-L type-binocular-accessories About the TeleVue TV76 APOAn OAG, or off axis guider, offers a better way to guide when used with longer focal length telescopes when compared to traditional guide scopes, which can add unwanted weight, balance and possible flexure issues. An OAG also lets you guide at the same focal length as your telescope. This is especially important to focal lengths beyond 1000mm. The ZWO OAG L Off Axis Guider has a large prism size of 12*12mm, far bigger than standard ZWO OAG's prism