ZWEFW7X225

EFW-7X2-25

ZWO

Offering ready access to the filters needed for monochrome astrophotography, the Electronic Filter Wheel 2025 from ZWO is updated from earlier models with convenient USB-C connectivity and enhanced protection from light leakage. The aluminum-housed EFW employs a precise stepper motor and can be rotated clockwise and counterclockwise. The wheel consists of seven positions for 2" mounted or 50.4mm unmounted filters and comes with the necessary adapters for mounting to a telescope back or camera. Power comes from the supplied USB cable plugged into a computer, USB hub, or camera with power outputs. With the ASCOM driver installed, the EFW can be operated through many astrophotography programs.Power & Connectivity Connects to your imaging system via the built-in USB-C port, using the included USB 2.0 USB-A to USB-C cable Draws only 120mA at 5V and runs entirely from a single USB connection no external power supply neededSoftware Support Works seamlessly with ASIAIR, ASIStudio, ASCOM, and the ZWO SDK for flexible control across platforms True plug-and-play design with no driver installation requiredAnti-Light-Leak Design Slot-fit chassis provides a tighter mechanical interface between the top and bottom covers, minimizing potential ingress points for stray light Light-blocking pads on both lateral connection points create additional optical barrier, helping maintain clean, uniform frames during long integrations The motor assembly is fully sealed, improving both light isolation and environmental resistance for more stable operation over timeLightweight, Durable Aluminum Construction CNC-machined aluminum alloy body for a lighter, more rigid structure Internal filter carousel is made from 6061 aluminum alloy, reducing weight while maintaining excellent strength and stabilityAutomatic Filter Changing When paired with control software such as ASIAIR, the EFW enables automatic filter changes during a scheduled imaging session for fully unattended, hands-free astrophotography