Bintel 303mm
Tube rings

Robust tube rings for telescopes with a outer tube diameter of 303 mm. The rings can be flipped open for easy telescope attachment. They are equipped with a M6 threaded bore on their both flat bases.

On the inner side, there's a felt layer to prevent scratches and to compensate for small differences in diameter.

High quality, cast-aluminum mounting rings that can be used for mounting telescope tubes on various mounts or on guidescope rails. All rings are hinged, felt-lined and have clamp-style rings for easy mounting or repositioning of the optical tube. The large clamp knob permits easy handling in all conditions, with or without gloves. The base of the rings is threaded for 6mm metric screws (not included but available at most hardware stores). Gunmetal grey finish. Each ring weighs Xoz/Yg (Coming soon). Price shown is for a set of 2 rings.