Baader ClickLock Mirror Star Diagonal

Unlike traditional thumbscrews that can mar your eyepiece barrels or cause slight misalignment, the ClickLock system uses a 3-point clamping mechanism. A simple twist secures the eyepiece evenly across its entire circumference, ensuring it stays perfectly centered without any wobble or damage.

No, it is designed specifically to avoid that issue. With a full 46.6mm clear aperture, it provides a wide, unobstructed light path that accommodates even large, high-power eyepieces without cutting off the edges of your view.

Yes, the nosepiece is removable. Once removed, you can thread the diagonal directly onto the rear cell of most SCT telescopes, which provides a more rigid connection and saves a bit of optical length.

The proprietary dielectric coating is actually an upgrade. It prevents the surface stresses often found in standard mirrors, maintaining a precise 1/10 wave accuracy that ensures your images remain sharp and undistorted, while also providing 99% reflectivity for a brighter view.

At 584 grams, it has a solid, premium feel, but it is generally manageable for most standard telescope mounts. If you are using a very lightweight setup, you may need to slightly adjust your counterweights to compensate for the added mass at the rear of the scope.

The mirror is built for longevity. The hard-coated surface is scratch-resistant and designed to withstand the rigors of regular field use, meaning you won't need to worry about the coating degrading or losing reflectivity over time.