ZWO EFW 5×2” – Motorized Electronic Filter Wheel for 5 Mounted 2" Filters

The ZWO EFW 5×2” is a motorized electronic filter wheel designed for advanced astrophotography using mounted 2-inch (2") filters. It offers 5 positions to conveniently manage LRGB sets or broadband/narrowband combinations, providing fast, reliable filter switching that is perfect for automated workflows and multi-night imaging.

Key Features

• 5 positions for mounted 2” filters.
• Precise and reliable motorized filter wheel.
• Ideal for large sensors (APS-C / Full Frame, depending on the optical train).
• Rapid filter switching for automated sessions.
• Robust CNC aluminum construction.
• Reduces vignetting compared to smaller filters in many setups.
• USB control.
• Compatible with ASIAIR, NINA, SharpCap, and astronomical software.

Multi-filter imaging for advanced deep-sky

With the ZWO EFW 5×2”, you can build a reliable setup for:

• Full LRGB
• Essential narrowband (e.g., Hα + OIII + SII) with dedicated sets
• Multi-night sessions with repeatable framing and automation
• Setups with fast optics and large sensors (when maximum useful aperture is required)

Perfect for astrophotographers seeking solid performance and compatibility with 2” filters.

Main Technical Specifications

Ideal for

• 🌌 Advanced deep-sky
• 📸 Large sensors (APS-C / Full Frame, depending on the setup)
• 🎨 LRGB and broadband
• ⚙️ Automated workflows with ASIAIR
• 🛰️ Multi-night imaging

Package contents

• ZWO EFW 5×2”
• USB cable
• Screws and mounting accessories
• User manual