BinoViewer for Telescopes 200-400 Although it is a standout

Although it is a standout telescope on its own

then slide the bolt to the end of the slot that is wider

The 55° apparent field

allowing you to easily use the “averted vision” technique to study faint details across a huge field-of-view

BinoViewer for Telescopes 200-400 Although it is a standoutThe BinoViewer is a 1. 25 inch device that uses two matching eyepieces (eyepieces not included) to give you AWESOME two eyed views through your telescope. Because our minds are designed to see the world with both eyes open, when you gaze through a telescope with both eyes, the view is much better. The Explore Scientific BinoViewer features sliding inter pupillary distance adjustment, twist locks to keep your eyepieces safely installed, and a diopter