ZWO EFW 7×36 mm – Motorized Filter Wheel for Unmounted Filters

The ZWO EFW 7×36 mm is a motorized electronic filter wheel designed for advanced astrophotography with monochrome cameras and large sensors. It supports 7 unmounted 36 mm filters, offering maximum flexibility for complete LRGB + narrowband configurations, with a compact optical train and fast, reliable filter switching.

Main features

• 7 positions for 36 mm unmounted filters.
• Precise and reliable motorized filter wheel.
• Rapid filter switching for automated sessions.
• Compact design for tidy optical trains.
• Robust and lightweight CNC aluminum structure.
• Ideal for APS-C sensors and larger (depending on light cone and filter-to-sensor distance).
• USB control.
• Compatible with ASIAIR, NINA, SharpCap and astronomical software.

Perfect for LRGB + Narrowband

With 7 positions, you can easily manage:

• Complete LRGB set
• Hα, OIII, SII filters (or duo/tri-band)
• Specialized filters (IR-pass, UV/IR-cut, etc.)

An ideal solution for multi-night imaging and fully automated workflows.

Key technical specifications

Ideal for

• 🌌 Advanced deep-sky astrophotography
• 📸 Monochrome setups with LRGB + SHO filters
• 🧩 Multi-night imaging and automation
• 🎯 APS-C sensors (and larger, if the optical train permits)
• ⚙️ Setups controlled via ASIAIR

Package contents

• ZWO EFW 7×36 mm
• USB cable
• Screws and mounting accessories
• User manual