Pixco Focusing Infinity Speed Booster Focal Reducer With Optical Glass Lens Adapter for Nikon G Lens to Fujifilm X Camera X-A5 X-A20 X-A10 X-A3 X-A2 X-A1 X-T2 X-E3 X-E2S X-E2 X-E1 X-T100 X-T10 X-T1I Increase exposure to 1 stop, and you can use faster shutter speed to shoot an image. Works fine, closely combined with the bayonet smooth, like the original lens. Full manual operation, manual focus, manual iris adjustment can be achieved with body manual exposure, aperture priority exposure, combined infinite focus. Note: You must set the camera to "Shooting without lens" mode to ON before use. Avoid direct shooting to light sources, or otherwise blue spot occurs.