Baader ClickLock Mirror Star Diagonal

The ClickLock system uses a three-point clamping mechanism that grips the entire circumference of your eyepiece barrel rather than pressing a single screw against it. This provides a much more secure, centered hold and prevents the marring or scratching often caused by traditional thumbscrews.

No, the diagonal features a 46.6mm clear aperture designed specifically to accommodate 2-inch eyepieces. This ensures full illumination across the field of view, preventing the vignetting that can occur with smaller, more restrictive diagonals.

Yes. The nosepiece is removable, which allows you to thread the diagonal directly onto standard SCT-style telescope threads. This creates a more rigid, stable connection compared to simply inserting it into a visual back.

Surface accuracy determines how well the mirror maintains the wavefront of light entering your telescope. A 1/10 wave rating ensures the mirror surface is extremely flat and free from the warping often introduced by standard multi-layer coatings, resulting in sharper, more accurate images.

Beyond providing 99% reflectivity for a brighter image, the dielectric coating process is physically harder and more resistant to oxidation than standard aluminum coatings. This makes the mirror surface more durable and easier to clean without risking damage to the optical layer.