Gadget Place 52mm Reverse Adapter / Retroadapter for Nikon D7200 D810A D5500 D750 D810 D4s D3300 D5300 D610 D7100 D5200 Reverse lens adapter / retroadapter. Fits with 52mm threaded lenses. Allows mounting a lens reversely on camera. Extremely useful for macro photography. Filter adapter rings can also be used together.