Sunset Foto Macro Reversing Ring for Nikon F Ai Reverse Mount Lens Adapter Close Up _52mm_

Reversing Ring for Nikon F Ai. Our lens mount adapter reversing ring allows any mm lens become a macro lens for a Nikon SLR camera body. Reversing ring adapters are an affordable alternative to buying a macro lens. This ring attaches to the filter thread on the front of a lens and acts as a conversion adaptor kit, making it possible to attach the lens in reverse. Excellent quality results up to 4x life-size magnification are possible. When used with an extension tube adapter or bellow, a highly versatile, true macro (greater than life size) system can be assembled. Since non-macro lenses are optimized for small reproduction ratios, reversing the lens allows it to be used for reciprocally high ratios. To determine the reverse ring required, keep in mind the reverse ring fits into the filter thread on the front of the lens (not the focal length). The filter thread is often printed on the edge of the lens barrel, on a filter ring, and sometimes on the reverse side of a lens cap. If still not sure, check the owner manual or specifications. Note: When using a reversing ring adapter certain functions may not operate correctly such as automatic diaphragm, auto-focusing, etc. At extreme close up distances, the easiest way to focus is to move the camera forward until the image in the viewfinder is sharp. Exposure may be set on manual or aperture priority automatic.