The ToupTek AFW is a motorized filter wheel for 8 x 1.25" & 31mm filters. The AFW has M54 x 0.75 female threads on either side to minimize vignetting with large sensors. The main body of the filter wheel is CNC machined from a single piece of aircraft aluminium, sandblasted and anodized for a high quality finish. With a thickness of 20mm, the AFW is easy to fit in most common imaging trains. The AFW is powered and controlled via a single USB 2.0 port. This can be connected either to your imaging computer or through the USB 2.0 hub found on ToupTek's ATR3 series cooled CMOS cameras. Specifications Compatible filters 8 x 1.25" & 31mm, 7 x 36mm or 5 x 2" & 50mm round (depending on model) Ports USB 2.0 Power supply USB 2.0 Optical thickness 20 mm Camera connection M54 x 0.75 female Telescope connection M54 x 0.75 female Weight 510g Items Included Filter Wheel body USB 2.0 cable 2m Screws and screwdriver M42 male - M54 male 1mm adapter M48 male - M42 female adapter M54 male - M48 female 16.5mm adapter Filter masks for 31mm unmounted filters Screws and washers for filter masks Downloads ToupTek software and drivers User manual