[IMPORTANT] 7artisans is committed to provide quality manual focus mirrorless camera lens, which needs to set the "release without lens" mode on your camera after installing the lens, or you would not press the shutter and take photos or videos. | [Ultra wide angle]- 7artisans 7.5mm F2.8 II fisheye lens with 190°super wide view angle, effectively enhance the artistic effect and visual impact, widely applicable in starry sky, landscape, traveling, 360°VR panorama production, underwater shootings etc. | [F2.8 Large Aperture]- With a large aperture, more light can be achieved under the same ISO, thereby shortening the exposure time, improving the image quality and maintaining the starry sky or aurora posture. | [Glass Optical Construction]- The 7.5mm F2.8 II lens is featured 11 elements in 9 groups, it uses a brand-new HOYA lens and adds 2 ED lenses, which effectively improves the effect of chromatic aberration on the edge imaging of the fisheye lens and improved lens resolution. | [Upgrade Craftsmanship]- Following the style of the first generation of appearance, The 7.5mm F2.8 II lens adopts new full body oxidation process, all metal body with petal lens hood, electroplated bayonet, laser engraving, compact size and exquisite.