Celestron M42 Spacer Ring Kit

Attain the perfect backfocus distance for your camera and maximize imaging performance with the Celestron M42 Spacer Ring Kit. Designed for Schmidt-Cassegrain, EdgeHD, and RASA 8 telescopes, this kit ensures that stars appear as pinpoints, eliminating elongated or distorted edges in your images.

Key Features:

• Adjusts Backfocus Distance – Three different M42 spacer rings (7.5mm, 12mm, 30mm) for precise camera-to-telescope alignment.
• Universal Compatibility – Works with ZWO, Atik, and other CCD/CMOS cameras, plus DSLR setups with T-rings.
• Premium Build Quality – Machined aluminum with black anodized finish, glare-threaded interiors for maximum contrast.
• Secure and Easy to Use – Knurled edges provide a firm grip for easy threading and unthreading.

Quick Guide for Usage:

• 7.5mm – Ideal for ZWO cameras on RASA 8
• 12mm – Works with Atik cameras on RASA 8
• 30mm – Converts ZWO cameras with filter slider to the 55mm backfocus standard for Schmidt-Cassegrain and EdgeHD telescopes

This essential accessory helps achieve sharp, high-quality astrophotography with optimized spacing for different camera setups.