Used once for photography assistance. There are areas where the paint has peeled due to the cap. This does not affect use. VILTROX Mount Adapter NF-M43X 0.71x Speed Booster Manual Focus Nikon G&D Lens → M4/3 Mount Conversion Applicable to Panasonic and Olympus M43 Mount Cameras 16-Step Aperture Adjustment: This lens adapter has an aperture adjustment ring, with an aperture range of F-8, a total of 16 steps. You can manually adjust the aperture by turning the scale ring to control the depth of field for shooting. 4 Groups 5 Elements Optical Lens: Built-in 4 groups and 5 elements of optical lenses, increasing the aperture by one stop, and the focal length becomes 0.71 times the original (equivalent focal length = actual focal length * 0.71), blurring the depth of field effect more. The focal length is shorter, and the angle of view becomes wider. *Cannot be used with E-M1, E-M5, E-PL6, E-PL5, and E-PM2 Camera Circuit Protection: The lens adapter has a lens release button, which can disconnect the camera circuit when attaching and detaching the lens, preventing damage to the camera when attaching and removing the lens. Supports Infinity Focus: Supports infinity focus, achieving a wide depth of field and allowing the entire image to be clear. For lenses with an infinity scale, adjust the lens to the M position, manually focus, then screw the focus ring to the infinity L on the scale, align it with the vertical line of L, and you can achieve infinity focus.