ZWO Electronic Filter Wheel EFW Gen2 - 5 x 2"

Name: ZWO Electronic Filter Wheel EFW Gen2 - 5 x 2"
Brand: ZWO
SKU: ZWO-EFW-5x2-25
Price: 419.0 CAD
Availability: InStock

by ZWO

SKU ZWO-EFW-5x2-25

CA$419.00 - CA$419.00

CA$419.00

CA$419.00 - CA$419.00

CA$419.00

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5x positions
Compatible with 2" and 50mm filters
Anti Light Leak Design
Modern USB-C Interface

Availability:

Backordered
Contact us to know when we will receive our next ones!

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More information

Description
Specifications
In the Box
Downloads

ZWO Electronic Filter Wheel (EFW) Gen 2 Overview

The next generation ZWO EFW Gen 2 brings a series of subtle but meaningful upgrades for astrophotographers who want dependable, automated filter management. Its redesigned internal structure reduces light leakage, the mechanics rotate more smoothly, and the exterior has been streamlined for a cleaner, more modern look. Nothing flashy. Just better where it counts, so your workflow stays stable, reliable, and quietly improved.

Anti Light Leak Engineering

Long exposures demand strict control over stray light. The Gen 2 EFW introduces several structural improvements.

Upgraded Sealing Structure

A redesigned slot fit chassis tightens the interface between the top and bottom covers, reducing potential ingress points.

Dual Light Blocking Pads

New lateral light blocking pads add an extra shield, helping maintain clean, uniform frames during long integrations.

Fully Enclosed Motor Compartment

The motor housing is now sealed, increasing both light isolation and environmental resistance for more stable, long term operation.
Filter Compatibility
- 2" Mounted Filters: Compatible with mounted filters where the unthreaded part of the filter cell measures less than 7mm, and the threaded part less than 2.7mm.
- 50mm Round Filters: Compatible with unmounted filters that are 1.5 to 3.5 mm thick
Automated Filter Switching

The motorized, bidirectional system enables fully automated filter changes. When paired with ASIAIR or other supported software, the EFW can change filters seamlessly during a scheduled sequence. This is ideal for unattended, multi filter imaging sessions.
Software Support

The motorized, bidirectional system enables fully automated filter changes. When paired with ASIAIR or other supported software, the EFW can change filters seamlessly during a scheduled sequence. This is ideal for unattended, multi filter imaging sessions.
- ASIAIR
- ASIStudio
- ASCOM
- ZWO SDK
Refined Exterior and Interface Upgrades
- Cleaner, more modern look with laser engraved details
- Streamlined exterior for a cohesive, professional appearance
- USB C interface replaces the legacy USB B port for a more robust, reliable, and convenient connection
Lightweight, Rigid Construction
- CNC machined aluminum alloy body for excellent strength at lower weight
- Internal filter carousel made from 6061 aluminum alloy for durability and smooth rotation
- High precision stepper motor ensures consistent indexing and long term reliability

Slots	5x
Supported Filters	2" Mounted Filters: Compatible with mounted filters where the unthreaded part of the filter cell measures less than 7mm, and the threaded part less than 2.7mm. 50mm Round Filters: Compatible with unmounted filters that are 1.5 to 3.5 mm thick
Effective Thickness	20mm
Weight	540g
Interface	USB-C
Power Consumption	120mA at 5V

- EFW Body
  
  × 1
- M2.5 6mm Screws
  
  × 6
- M2 4mm Screws
  
  × 26
- 0.5m USB 2.0 Cable
  
  × 1
- 2m USB 2.0 Cable
  
  × 1
- Filter Masks
  
  × 10
- M54M-M48F Adapter
  
  × 1
- M54M-M42F Adapter
  
  × 1
- M54M-M48F 2mm Adapter
  
  × 1
- Phillips Screwdriver
  
  × 1
- Download Software