Alstar Superior Multiple 5 Position Telescope Review

The telescope side of the filter wheel comes supplied with a 2" adapter, allowing you to quickly and easily attach it to your focuser. The very short design also permits the use of devices with short back focus such as Newton or Dobson telescopes. Filter positions indicated by the numbers 1-5, takes any standard 2" filter. It's very sturdy aluminum housing makes it also suitable for heavy cameras, accessory-side T-2 and M48 threads. The filter wheel interior is absolutely light-tight - allowing you to image without any reflections or stray light. It's construction is impermeable to light and thus ensures reflection-free astrophotography. This 2" filter wheel lets you use up to 5 different filters and change them within just a few seconds, you can also leave your filters mounted in the filter wheel, as they are optimally protected from dust and damage there. Please note: your focuser will require 20mm of inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel.