NEEWER 9"/230mm Rail Bar Vixen Style Dovetail Plate, Metal Mounting Plate Saddle with M6 1/4" 3/8" Camera Screw for Telescope Mount Adapter OTA Equatorial Tripod Sky Astrophotography, QR003

【Universal Compatibility】 Featuring a Vixen dovetail at the base, this mounting plate is compatible with all Vixen standard turntables of any brand. 【Multiple Mounting Points】 Two 87.6 mm (3.5") oblong holes are available for mounting and balancing the equipment. With a width of 6.4mm (0.25"), the oblong holes can accommodate both M6 and 1/4" screws. Each oblong hole also has three 3/8" threads (M8 countersunk holes) with a spacing of 35mm (1.4") between them. 【Twenty 1/4 inch threaded holes】 The twenty 1/4" threaded holes are evenly distributed on either side of the oblong holes, with a spacing of 20mm (0.8") between them. These holes are useful for mounting a variety of devices with the corresponding thread. 【Precise Graduations】 The graduations on each side help you find the precise position to mount your equipment for astrophotography, celestial observation, night sky observation and stargazing. 【Non-slip Rubber Pads】 Soft and non-slip rubber pads increase the stability between the mounting plate and your hardware and protect it from unwanted scratches. Four safety screws underneath prevent the mounting plate from falling off. Note: To use a Vixen turntable, two safety screws must be removed.