This 2" filter wheel lets you use up to 5 different filters and change them within just a few seconds. Whether for astrophotography or visual observing - your filters are always ready to use. Use the filter wheel with UHC, OII, CLS and other filters, for example - which lets you quickly and easily find the best filter when visually observing.Imagine you have a camera mounted on the telescope and have to switch between different filters and quickly as possible. This is only possible using a filter wheel. A handy rotary wheel offers you incredibly fast switching between up to 5 different filters. Each filter position is designated by a number, which lets you know which filter is currently in the beam path.Open the filter wheel and screw up to 5 different filters into it. These can be RGB and luminance filters for astrophotography or wide-band and narrow-band filters for visual observing. You can also leave your filters mounted in the filter wheel, as they are optimally protected from dust and damage there.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 filter wheel also has a T-2 thread on the telescope side for other adapters. On the accessory side, you will also find a T-2 and M48 thread. You can connect your camera or eyepiece connector here.The filter wheel interior is absolutely light-tight - allowing you to image without any reflections or stray light.