Starizona Filter Slider 2" to 31mm Unmounted Filter Adapter (SFS-231A)

Starizona Filter Slider 2" to 31mm Unmounted Filter Adapter (SFS-231A)This filter step ring is made specifically with the Starizona Filter Slider system in mind. It steps the M48 threads of a standard 2" filter down to a 31mm unmounted filter holder. There are nylon retaining screws to hold the filter in place. The step ring has a 2" outside diameter, so it can also be used in many other applications in addition to the Filter Slider.

Name: ZWO New narrowband 1

This dovetail bar kit allows you to replace the wider CGE dovetail bar found on most Celestron 11” Schmidt-Cassegrain and 11” EdgeHD optical tubes with a narrow dovetail

The Zeiss Conquest Gavia provides birdwatchers and nature observers with a high-performance spotting scope that is simply great value

Align on the stars using one of four alignment methods to put Virtuoso’s internal GPS to work and track objects like the Sun

1° - 1° with included eyepiece Linear Field of View (@1000 yds) / @1000 m): 110 - 52 ft (37 - 17 m) with included eyepiece Focal Length: 480mm (18

the comfort

When using AstroSolar® Safety Film 5

59 arc seconds Resolution (Dawes): 0

5 focal ratio to f/4

You can even use NexStar Evolution's USB charge port to top off the other devices in your life that need to stay powered on during an observing session

This permitted relatively long eye-relief for very short focal lengths

Fine sandblasting process and anodized finish