The ZWO EFW motorized filter wheel accommodates 8×1.25" mounted or 8×31 mm unmounted filters, allowing motorized filter changes via a computer, ZWO ASIAir, or ToupTek Stellavita. An excellent match for cameras with sensors up to 20 mm in diameter.
The filter wheel features T2 threads on both sides, ensuring a simple and secure connection between the telescope and camera. It also offers screw mounting options for the manufacturer’s cooled cameras, allowing the filter wheel to be positioned closer to the sensor to help minimize vignetting. The device connects to a computer via USB 2.0 and can be easily controlled with any compatible software after installing the ASCOM driver.
The ZWO EFW motorized filter wheel is housed in a high-quality aluminum body, measuring just 20 mm in width and weighing 530 grams. Thanks to its slim design, it can be positioned remarkably close to the camera sensor, eliminating concerns about vignetting even with fast telescopes.
The updated filter wheel features a USB-C connector and additional shielding against stray light.
