The ToupTek 8×1.25 inch Automatic Filter Wheel features a 8 position carousel for 1.25mm mounted (threaded) or 31mm unmounted filters. This size filter is appropriate for small camera sensors including planetary cameras up to four-thirds (with a higher focal ratio) without vignetting.

The filter wheel is 20mm in optical length and has M54F threads at both ends. It may also be bolted to other components such as cameras or off-axis guiders.

ToupTek AFW can reach 55mm back focal distance perfectly with any ToupTek cooled camera. The extenders and adapters you need are included in the package. It also works with other cameras with 17.5mm back focal distance or 12.5mm back focal distance.

ToupTek Filter Wheel supports USB2.0 interface and also is powered through the USB2.0 connection. Users simply needs to connect the filter wheel with any PC control device then the filter wheel is good to go.