4 x 1/4''-20 screw (1/4'' thread length)

This is well-suited for photographers and videographers who need to quickly unload large amounts of data and get back to shooting

then you can mount your dovetail base plate on it

The durable and lightweight high-grade aluminum housing is finished in hard-wearing epoxy paint to withstand the stress of location recording

Axis Mini EVF mount for the Sony FX9

SmallRig 1798 Baseplate w/Dual 15mm Rod Clamp 50% 4 x 1/4''-20 screw (1/4''SmallRig Tripod Mounting Kit W 15mm Rail Block 1798 is combined by two SmallRig Tripod mounting plate w 15mm rail block. Used for long length, front heavy, camera packages. Attach it to the tripod plate with a 3 8'' 16 screw and 1 4'' 20 screw, then you can mount your dovetail base plate on it. It clamps onto 15mm rails for accessories attachment, such as follow focus, matte box, etc. The 40mm groove makes it possible to balance a front heavy camera