Products

This 2" Questar star diagonal allows the use of 2" eyepieces with the 7" Questar Maksutov. Its 1/20th wave first surface quartz mirror has silver m...

THIS PRODUCT HAS BEEN DISCONTINUED AND IS NO LONGER FOR SALE.  THIS PAGE IS HERE FOR INFORMATIONAL PURPOSES ONLY. This 50mm LRBGC five filter set d...

The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control proces...

The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control proces...

 The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control proce...

The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control proces...

The 17mm TeleVue Ethos 100° field eyepiece is designed for no-holds-barred medium power deep space use with telescopes having focal ratios down to ...

2" prime focus adapter for unvignetted prime focus photography with TeleVue's Pronto, Genesis, TV-101, TV-102, and Renaissance refractors, but can ...

One end of this 2" diameter x 2" long extension tube fits into 2" focuser drawtubes. The opposite end is a 2" diameter eyepiece holder that uses a ...

This 90° 2” mirror-type star diagonal has Everbrite dielectric mirror coatings for 99% reflectivity. In addition to higher reflectivity than a conv...

The TeleVue 2" Eyepiece Barrel Extender increases the telescope back focus distance when you cannot rack out your focuser enough to reach focus wit...

This 90° 2” mirror-type star diagonal has enhanced aluminum mirror coatings for 96% reflectivity. The mirror is overcoated with quartz for long lif...

With a 21mm focal length, the field of this 100° apparent field Ethos eyepiece is nearly 64% larger in area than the 82° field of a "space-walking"...

The TeleVue 2" 22mm Nagler Type 4 replaces the 20mm Nagler Type 2, considered by many to be the finest eyepiece ever made. How do you improve on a ...

An excellent premium-quality low power wide field 2" eyepiece for the serious deep space explorer. The 27mm Panoptic, for example, will give you a ...

This 2" 2x Clamp Ring Big Barlow can be used with any telescope using a 2" focuser. As it is only 4.5" long, it can also be used in most 2" star di...

If you need a very high quality 2x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this uniqu...

This Nagler Type Five eyepiece uses a new six-lens design that reduces the size and weight of this 31mm eyepiece to less than that of the previous ...

An excellent and physically-impressive premium-quality low power wide field 2" eyepiece for the serious deep space explorer. The Tele Vue 35mm Pano...

This is a premium-quality wide field 2" eyepiece for the serious deep space explorer. Because of its long focal length, it is at its best with tele...

If you need a very high quality, very high power 4x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a B...