SVBONY SV197 Collimating Cheshire Eyepiece for Newtonian Reflector Telescope

The SV197 Cheshire Collimating Eyepiece is a versatile tool designed to fit into 1.25-inch focusers or diagonals, making it compatible with a wide range of Newtonian and SCT reflector telescopes. This eyepiece is essential for ensuring accurate optical alignment, particularly for the collimation of telescope mirrors.

One of the key features of the SV197 Cheshire Collimating Eyepiece is its ability to provide a clear and detailed view during the collimation process. The eyepiece features a peephole at the top, allowing the user to directly observe the results of the collimation adjustments. This makes it easier to center the primary mirror reflection in the secondary mirror, ensuring that the reflections from the Cheshire and the secondary mirror are aligned.

The eyepiece is designed to accommodate different telescope types. For faster telescopes (f/5 and below), the view through the Cheshire eyepiece may be slightly off-center, while for slower telescopes (f/5 and above), the view will be more centered and easier to collimate.

Constructed from durable aluminum using CNC integration, the SV197 Cheshire Collimating Eyepiece is built to last. The crosshairs, which are essential for precise alignment, are made from strong and resilient steel wire, unlike the more fragile copper or aluminum alternatives.

To ensure safe transportation and easy storage, the eyepiece comes packaged in an EVA-lined case. This protective packaging helps to prolong the service life of the product and maintain its high precision.

In terms of specifications, the SV197 Cheshire Collimating Eyepiece has a 1.25-inch connection size, making it compatible with a wide range of telescope accessories and focusers. The overall dimensions of the eyepiece are 141mm x 41mm x 32mm, with a net weight of 156g or 5.51 ounces.

The package includes the Cheshire Collimating Eyepiece itself, along with a 1.25-inch dust cover to protect the eyepiece when not in use. This comprehensive package ensures that users have everything they need to accurately align their telescope's optics.

Whether you're a seasoned astronomer or a beginner setting up your first telescope, the SV197 Cheshire Collimating Eyepiece is an essential tool for ensuring the optimal performance of your viewing equipment. Its precision, durability, and user-friendly design make it a valuable addition to any stargazer's toolkit.

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