Using this reverse ring, you can change your medium lens to micro lens. It can turn the lens upside down and connect it to the body, so as to achieve the purpose of macro photography with ordinary lens. It is generally used for reverse lens connection of SLR digital camera for macro shootingThe reverse lens is mounted the front end of the lens (filter end) on the body of the camera through the bayonet-screw reverse connection ring for macro photography. The principle is that the rear focal length of the general 85mm lens is shorter than the front focal length, and the effective focal length becomes shorter after the reverse connection, so as to achieve the effect of close shot. For example 50mm standard lens reverse connection can achieve 1:1 image ratioMade of high-quality metal material, strong and durableIt is used for reverse connection of 58mm aperture lens to bring ultradistance effect. It can turn the lens upside down and connect it to the body, so as to achieve the purpose of macro photography with an ordinary lensThe distance between the lens and the focal plane is further increasedGood results can be achieved when shooting three-dimensional scenesAfter the reverse connection, the focus ring of the lens has very little effect and focuses mainly by moving the distance between the camera and the subjectThe camera's aperture linkage system no longer worksThe depth of field is short and only lenses with focal lengths between 20mm and 85mm can be usedThe bayonet part of the original lens is completely exposed, and backlight shooting will cause glare phenomenon Note: After connection, the lens cannot be AF, and the aperture is all manual (please confirm whether your lens has manual aperture control function before purchase).Close the rear dismantling ring of the fuselage.Due to the large magnification rate and short focus range after inverted connection, the camera needs to move back and forth to find the focus, so this connection ring is suitable for patient players to use, in addition, it is best to use together with the macro frame, so as to facilitate the focus. Specification: Material: MetalPower: Full manual focus, full manual apertureSwitching caliber: one side is bayonet, one side is 58mm screw mouth Package included: 1 x DSLR Camera Macro Lens Reverse Ring Adapter Other items not included