Used ZWO 2" Blue Imaging Filter Seestar The minimum tripod height has

The minimum tripod height has also been lowered per user feedback

An excellent collectible for any space enthusiast

Dobson was well known for constructing large aperture reflecting telescopes capable of deep sky viewing

The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing - about 3 times brighter than traditional bahtinov masks

This 90° 2"mirror-type star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatings for 99% reflectivity which provides higher contrast and resolution during critical planetary

Used ZWO 2" Blue Imaging Filter Seestar The minimum tripod height hasPRICE DROP: Was $50, now $40!!! This 2'' blue filter was part of a set of 4 2'' ZWO LRGB filters, which we are selling individually. It is in excellent condition, with clean glass and coatings. Comes in its original jewel case. ZWO's 2" filter design boasts excellent 92% transmission at passband, great optical coatings, and good color separation. The LRGB filters have a mechanical thickness of 5mm, with an additional 2. 5mm added for the thread. The