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.The filter wheel interior is absolutely light-tight - allowing you to image without any reflections or stray light.

Simply Rotate to Change Filter

• 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.

Space For Up to 5, Well Protected, Filters

• 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.

M54 and M48 Threads on Both Sides of The Wheel

The telescope side of the filter wheel comes with a 2" adapter, allowing you to quickly and easily attach it to your focuser. The filter wheel also has a M54 thread on the telescope side for other adapters. On the accessory side, you will also find a M48 thread. You can connect your camera or eyepiece connector here.

Attaching an Eyepiece:

• For visual use, you will need to attach the camera adapter and 2" eyepiece adapter to the Multiple Filter Wheel. To do this, thread the two adapters onto the back plate of the wheel assembly. Once the adapters are completely attached, unscrew the knurled thumbscrew until it is flush with the inside surface of the adapter and insert a 2" eyepiece. Secure the eyepiece by tightening the thumbscrew.

Attaching a Digital Imager:

• If you are using a digital imager that features T-threads, you can attach it to the Multiple Filter Wheel. If your digital imager has a 1.25" nosepiece, remove it to expose the T-threads. Now simply thread the imager onto the camera adapter via a "M48x0.75 (2" Filter) Female to M42*0.75 T / T2 Male Thread Telescope Adapter" (Not Include), and then thread the adapter onto the rear plate of the filter wheel assembly. You can lock your camera or digital imager in a preferred position by using the camera adapter's locking ring. Once you have positioned your camera or imager, rotate the knurled locking ring counter clockwise until it locks the camera or imager into place. Note: This process requires an additional interface "M48x0.75 (2" Filter) Female to M42*0.75 T / T2 Male Thread Telescope Adapter"

Attaching a Camera:

• The Multiple Filter Wheel can be extremely useful for astro-imaging with a camera body, be it a SLR camera, CCD, or CMOS device. To attach a SLR camera to the filter wheel, use the included camera adapter. Attach the side of the camera adapter without the knurled lock ring to the rear plate of the wheel assembly by rotating it clockwise until tight. Now thread your SLR camera T-ring onto the exposed T threads. Note: The filter wheel arrives with the camera adapter preinstalled, this process requires an additional interface.

Please Note:

• Your focuser will require 22.5mm of inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel.
• Care/Storage:Feel free to leave your 2" filters installed in the wheel during storage. To avoid excessive dust buildup, be sure to attach the dustcaps prior to storing, and use a foam-lined accessory case. The foam-lined box your Multiple Filter Wheel arrives in also acts as a convenient storage container.