The ZWO 7x50mm Square Filter Wheel is CNC milled from an aircraft-graded aluminum block to provide excellent stability and strength. With quality stepper motors produced by NPM, Japan the ZWO-EFW-7×50 features very high precision and reliable performance. The 50mm square filter profile makes the EFW-7×50 a perfect match for the ZWO ASI461MM Pro cooled CCD camera.

Designed to be rotated in both counterclockwise and clockwise directions the filter wheel provides quick filter selection while in use.

Requiring only 5V DC power allows this filter wheel to be directly connected to the USB 2.0 ports of an ASI cooled camera.