Tele Vue 13.0 Nagler Type 6 (EN6-13.0) BestForAstrophotography and the field of view

and the field of view (40 - 60°) works well for terrestrial observations as well as for views of the Moon

It's like having your own personal tour guide of the night sky

Place the plastic covers on the lens when not in use to reduce the dust collection

The Televue 4" Ring Mount slips around the tube assembly of the telescope while the bottom of the 4" Ring Mount attaches to any alt-azimuth or equatorial mount that uses a 1/4-20 attachment bolt

Tele Vue 13.0 Nagler Type 6 (EN6-13.0) BestForAstrophotography and the field of viewYou don't have to sacrifice field in order to gain sharpness and power. And, you're not limited to slow scopes, or have to squint through tiny eye lenses. These are the lunar and "planetary" eyepieces with field to spare. Nagler Type 6 The 7 element, Nagler Type 6 design is based on the original patented Nagler design. This new 7 element design update for the short focal length Nagler deserves its own designation. Using different exotic materials,