ZWO EFW Filter Wheel
Best compact filter solution for dedicated imaging enthusiasts
This precision-engineered filter wheel eliminates stray light with a redesigned, sealed housing, ensuring cleaner frames for deep-sky imaging. The upgrade to a USB-C interface and a fully enclosed motor provides a more reliable, modern connection for automated, hands-free filter switching.
$299.00
at
Agena AstroProducts
More Electronic Filter Wheel options
Who it's for
- Astrophotographers using existing ZWO hardware for a unified workflow
- Users with limited back-focus distance in their telescope setups
- Serious imagers requiring perfect frame calibration and automated filter changes
Who should skip it
- Photographers using non-ZWO cameras who prefer universal compatibility
- Perfectionists shooting in light-polluted areas or near bright sources
- Owners of specialized or non-standard thickness astronomical filters
Performance breakdown
Build Integrity
CNC-machined aluminum provides a rigid, lightweight housing for delicate optics.
Light Leak Prevention
Structural seals and light-blocking pads effectively eliminate stray photon interference.
Software Integration
Seamless compatibility with ASIAIR and ASCOM ensures effortless, automated imaging workflows.
Mechanical Reliability
Weather-resistant motor design ensures consistent, hands-free filter rotation in field conditions.
Imaging Train Compatibility
Slim 20mm profile minimizes back-focus issues for complex telescope setups.
Connectivity Standards
Modern USB Type-C interface offers a secure, reliable data connection.
Key Specs
Filter Capacity
7 Slot
Filter Size
36mm unmounted
Filter Thickness
1.9 - 3.5 mm
EFW Thickness
20mm
Power & Connectivity
USB Type-C
Weight
1.1 lbs
Material
Aluminum alloy
Software Support
ASIAIR, ASCOM, ZWO SDK
Motorized
Yes
Know before you buy
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Ask Metto anything about the ZWO EFW Filter Wheel before you decide.
