iShoot Tripod Mount Ring Lens Collar Compatible with Nikon RT-1 Nikkor AF-S 300mm F/4E PF ED VR & 70-200mm F/4G VR, Arca Bracket Holder Fit Plate

【1】Made of aviation aluminum, precision CNC machining, anodized surface, stainless steel screw, designed to be lightweight and hollow, with a net weight of about 160g. 【2】Based and improved by the original Nikon design, the structure is optimized, the details are improved, and the plate with quick release function has been added, more practical; suitable for Nikon AF-S 300mm, f/4 E PF ED VR and AF-S 70-200mm, f/4G ED VR lenses. 【3】Tripod ring holder has an inner diameter of about 68mm, built-in padding to increase the contact surface; with three indicators useful for lens rotation and quick alignment; Quick release spring, convenient for quick assembly and disassembly or adjusting camera for composition; Quick release plate with removable structure, 6mm and 6mm screw holes. 354 in 35 【4】Lens Ring Mount with Tripod Mount for Nikon RT-1 Nikkor AF-S 300mm f/4e PF ED VR and AF-S 70-200mm f/4G ED VR - Quick Release Plate Base Compatible with Arca-Swiss 39mm Ball Mount 【5】Quick release bottom plate is a standard 39mm AS compatible with RRS, Arca-Swiss, Kirk, Wimberley, Markins, Sunwayfoto, Kangrinpoche, Benro, Sirui, Marsace, iShoot, Arca's 39mm ball mount, IS-JZ30, IS-JZ50, IS-JZ64. , IS-QJ58, IS-QJ64, IS-JZ60BK, IS-JZ70MFT, IS-JZ80BK