Overview

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Operation Guides

Updated Jul 30, 2025• by WO Team 2 min read

Basic Set Up

Set up a Dual Scope System On AM3

Set up a Dual Scope System On AM3

Set up a dual scope system on the ZWO AM3 mount by rotating the clamp head properly. Ensure stability and alignment when installing side-by-side telescopes.

Back Spacing Range on Petzval Systems

Back Spacing Range on Petzval Systems

Care & Safety

Cleaning and Maintenance of Telescopes

Cleaning and Maintenance of Telescopes

Learn safe and effective methods for cleaning and maintaining your telescope. Protect optics, prevent damage, and extend the life of your William Optics gear.

Adjusting Instruction

Flattener Back Focus Adjustment

Flattener Back Focus Adjustment

Learn how to adjust back focus on William Optics flatteners using built-in adapters and optional extenders. Ensure sharp stars by fine-tuning optical spacing.

Ultra Flat Back Focus Adjustment

Ultra Flat Back Focus Adjustment

Learn how to adjust back focus on William Optics Ultra Flat. Ensure sharp stars by fine-tuning optical spacing.

Pleiades Series Back Focus Adjustment

Pleiades Series Back Focus Adjustment

Learn how to adjust back focus on William Optics Pleiades telescopes. Ensure sharp stars by fine-tuning optical spacing.

Sensor Tilt Adjustment (Standard)

Sensor Tilt Adjustment (Standard)

Fix distorted star shapes with William Optics’ Tilt Adapter. This guide shows how to diagnose sensor tilt and apply precise adjustments confidently.

Sensor Tilt Adjustment (STX)

Sensor Tilt Adjustment (STX)

Fix distorted star shapes with William Optics’ new Sensor Tilt Xterminator. This guide shows how to diagnose sensor tilt and apply precise adjustments confidently.

WIFD R&P Focuser Tension Adjustment

WIFD R&P Focuser Tension Adjustment

Explore WIFD R&P focuser tension adjustment, including the Quick Tension Knob function and best practices for secure, smooth focusing performance.

R&P Focuser Tension Adjustment

R&P Focuser Tension Adjustment

Explore R&P focuser tension adjustment, including the Quick Tension Knob function and best practices for secure, smooth focusing performance.

Installing Accessories

Installing a M48 Filter

Installing a M48 Filter

Find out where and how to install an M48 filter on William Optics scopes.

Installing EAF on R&P Focuser

Installing EAF on R&P Focuser

Find out where and how to install the ZWO EAF on William Optics scopes.

Installing EAF with K-ASTEC bracket

Installing EAF with K-ASTEC bracket

Find out where and how to install the ZWO EAF with K-ASTEC bracket on William Optics scopes.