Dovetail rails, also called dovetail rails, are mostly used to mount telescopes on an astronomical mount. These rails are also often used to attach other accessories to the telescope tube, such as a guide tube or a camera.
Two standards have been established in astronomy: the relatively narrow rails introduced by the Japanese manufacturer Vixen and the wider Losmandy rails . The latter have a width of 3 inches and are mainly used for heavy optics. The Arca Swiss standard for clamps on photo tripods comes from photography.
Most astronomical mounts are designed for one of the two standards. Medium-sized mounts are often equipped with a dual mount saddle that can accommodate both standards.
Special features of this rail:
- Camera screw mount with 1/4 "photo thread
- Thread adapter 1/4 inch to 3/8 inch included
- Rubber inserts against slipping and twisting
- Laser engraved scale with fine division
- 3 slots for attaching the camera
Thanks to the side clamping plate, a firm clamping without traces on the rail is possible.