5-position Filter Wheel for Imaging or Visual Observations by OVL
5-position Filter Wheel for Imaging or Visual Observations by OVL (Optical Vision Ltd, the official Skywatcher distributor in the UK and Western Europe).
This handy, time-saving device is a must-have for astronomers, for both visual and photographic use.
Up to five filters can be installed in the threaded, numbered compartments, and each can be selected for your eyepiece or camera by simply rotating the inner wheel to any of the five click-stop positions.
The filter wheel can be attached to your focuser either by the supplied 1.25” nosepiece adaptor or via a T-thread.
One compartment can be left empty for unfiltered viewing.
The robustly constructed filter wheel is supplied with a 1.25” focuser nosepiece, 1.25” eyepiece adaptor, T-2 camera adaptor and locking ring.
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.
This filter wheel will be a good addition to any ZWO CMOS USB camera that we sell (please make sure that your telescope otherwise have enough back focus, of course, e.g. Newtonian telescopes would usually have a back focus issue, unless modified or specially designed for astrophotograpy...)