The ToupTek large (7×2 inch) automatic filter wheel has a 7 position carousel for 2-inch mounted (threaded) filters. This size filter is appropriate for camera sensors up to full-frame 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. With the standard extenders and adapters included in the package, the ToupTek AFW can reach 55mm back focal distance perfectly with any ToupTek cooled camera. It is also compatible 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.
