Skywatcher Collimation Eyepiece Cheshire 1.25″

The Skywatcher Collimation Eyepiece Cheshire 1.25″ is a classic and reliable tool for perfectly aligning the optics of your telescope. With this accessory, you can accurately collimate the mirrors of Newton and Schmidt-Cassegrain telescopes in minutes, without electronic tools or batteries.

The Cheshire eyepiece combines two functions in one instrument: a reticle for centering and a reflective 45° surface that projects a bright ring of light into the light path. This allows you to see immediately if the main and catch mirrors are correctly aligned.

The reversible eyecup prevents disturbing light from the side, allowing you to collimate even during the day. Thanks to the 1.25″ mount, the eyepiece fits in almost any focuser. A standard adapter can be used for 2″ focusers.

The solid aluminum design ensures durability and precision, without the need for calibration or power supply. This makes the Cheshire eyepiece an ideal tool for both home use and travel, indispensable for owners of Dobson telescopes who transport their instrument regularly.

Application

The Skywatcher Cheshire Collimation eyepiece is suitable for all Newton and Schmidt-Cassegrain telescopes.
What you can do with it:

• Accurate alignment of main and catch mirrors
• Checking the centering of the optical axis
• Easy collimation in daylight or dusk
• Ideal for Dobson and travel binoculars that are moved frequently

Specifications

Optical & mechanical
Type: Collimation eyepiece (Cheshire)
Telescope connection: 1.25″
Suitable for: Newton and Schmidt-Cassegrain telescopes
Reticle: Yes
Reflective surface: 45° polished aluminum
Material: Full aluminum
Eyecup: Foldable against stray light
Length:Compact and portable design

Usage & compatibility
Application: manual collimation
Adapter compatibility: 2″ via standard adapter
Power Supply: Not required