ZWO 5 Position Electronic Filter Wheel for 2" Filters

The ZWO 5 Position Electronic Filter Wheel (EFW) for 2" filters offers a seamless solution for astrophotographers needing automated filter switching during imaging sessions. Designed to hold up to five 2" mounted or 50.4 mm unmounted filters, it is ideal for both monochrome and color camera users working with LRGB or narrowband SHO sets.

With USB 2.0 connectivity and full ASCOM and ASIAIR compatibility, the ZWO EFW allows quick and precise control of filter selection directly from your imaging software. It features direct mounting capability to ZWO's APS-C and full-frame cameras, supporting optimal backfocus and efficient light path alignment. Its lightweight and durable build, paired with thoughtful accessories like darkening rings and multiple adapter plates, makes it a powerful addition to any imaging setup. Whether you’re automating a monochrome workflow or integrating with ZWO’s OAG-L system, this filter wheel brings control, flexibility, and convenience to your deep sky imaging experience.

• Filter Capacity: 5 positions
• Compatible Filter Sizes:
  • 2" mounted filters (≤7.5 mm height)
  • 50.4 mm ± 0.5 mm unmounted filters
• Backfocus Consumption: 20 mm
• Connection Interfaces:
  • Front: M54 threads, direct to OAG-L
  • Rear: M54 threads, direct to ZWO Pro cameras
• Data Interface: USB-B 2.0
• Power Requirement: No external power required
• Control Compatibility: ASCOM, ASIAIR, major PC software
• Material: CNC-machined aluminum
• Weight: 500 g
• Warranty: ZWO – 2 Years
• SKU Number: ZWO-EFW-5X2
• Model Number: EFW-5x2

• EFW 5x2 Filter Wheel Body
• 2 m USB 2.0 Cable
• Bag of Six M2.5x6 Screws
• Bag of Seven Filter Masks
• Phillips Screwdriver
• Bag of Twenty-Three M2x4 Flat Screws
• M54M to M48F Adapter
• M54M to M42F Adapter
• Darkening Ring Set (4 pieces)