The Skywatcher Collimation Eyepiece Cheshire 1.25″ is a precision tool that allows you to quickly and accurately align your telescope's mirrors. Correct collimation is essential for sharp, high-contrast images - and with this accessory you can do it in just minutes, without electronic tools.
The Cheshire eyepiece combines a reticle for centering with a reflective 45° plane that projects a light ring into the light path. This allows you to see immediately whether the main and catch mirrors are properly aligned. The folding eyecup prevents disturbing light from the side, allowing you to work comfortably even during the day.
This collimation eyepiece fits into any 1.25” focuser and can also be used in a 2” focuser with a standard adapter. Its compact, all-metal design makes it a durable tool that will last for years, ideal for both home use and on the go.
For owners of Dobson telescopes or Newton reflectors who regularly transport their telescope, this accessory is indispensable. After each move, you can easily check that your optics are still perfectly collimated using the Cheshire eyepiece.
Application
The Skywatcher Cheshire Collimation eyepiece is suitable for all Newton and Schmidt-Cassegrain telescopes.
What you can do with it:
- Accurate adjustment of main and catch mirrors
- Checking the centering of the optical axis
- Aligning in daylight or under the stars
- Essential for Dobson telescopes that are frequently transported
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
Eyecup: Foldable, prevents stray light
Material: Aluminum
Usage & compatibility
Application: manual collimation
Adapter compatibility: 2″ via standard adapter
Power Supply: Not required
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