ADAPTOUT, 100% metal anodized aluminium adapter. Designed for professional and durable use. 2 year warranty. DESCRIPTION The reversing ring, by placing the front thread on the housing and the mount at the front, significantly reduces the minimum focusing distance and therefore allows any lens compatible with the ring diameter to be used as a MACRO LENS You do not have to use lenses from the brand of your camera, so it is quite possible to mount an old Olympus OM, Minolta mount lens, for example. Canon FD, M4 2 or others on a NIKON case. This works with all brands of lenses. SPECIFICATIONS Infinity focus: NO (This ring is for use in extreme macro photography) Automatic diaphragm: NO The different settings (focus, aperture are done manually. Indeed, the lens being mounted upside down, there is no electrical connection between the housing and the lens. Internal lens: No (no loss of quality). Can be used in video: yes suitable for lenses: diameter of 58 mm. All brands are compatible with camera: all cameras and cases with a Nikon AI F mount, including: D810, D800, D800E, D750, D700, D600 D3X. D4 D7 200 D7100 D7000 D5500 D5300 D5200 D5100 D5000 D3300 D3200 D3100 D3000 D300s D300 D200 D100 D90 D90 30D 0 D70s D60 D50 D40 D40x D3 D3s D2H D2Hs D2Xs D1 D1X D1H F FM FE FA EL EM FG Etc.