ZWO EFW User Manual

苏州振旺光电有限公司
Suzhou ZWO Co., Ltd.
EFW
Quick Guide
Thank you for purchasing a ZWO Electronic Filter Wheel (EFW). This manual will introduce
you to your EFW and prepare you for the first use. Please take the time to thoroughly read
this Quick Start Guide and if you have any additional questions, please contact us at
info@zwoptical.com

ZWO EFW Specifications

General

Filter Wheel Type	Electronic
Connection	USB 2.0
Material	Aluminum
Number of Positions	5 or 8
Filter Size	1.25" or 36mm
Compatibility	ZWO cameras
Power Supply	USB powered
Weight	Varies by model (e.g., 0.5kg for 5-position 1.25")

Summary

Introduction

Filter Installation

1.25" and 2" Mounted Filters

Instructions for installing 1.25-inch and 2-inch mounted filters into the EFW.

31mm, 36mm & 51mm Unmounted Filters

Instructions for installing 31mm, 36mm, and 51mm unmounted filters using M2 screws.

Connecting EFW to Camera

Driver Installation

ASCOM Platform Installation

Prerequisite step to install the ASCOM platform before the EFW driver.

ZWO EFW ASCOM Driver Installation

Guide for downloading and installing the ZWO EFW ASCOM driver.

Troubleshooting Common Problems

Filter Stuck or Incorrect Position

Addresses issues where the EFW gets stuck or fails to reach its correct position.

EFW Spins or Stops Incorrectly

Troubleshooting advice for continuous spinning or incorrect stopping of the EFW.

7-Position EFW Carousel Error and Balance

Addresses carousel errors and filter balance issues in a 7-position EFW.