The 7artisans 7.5mm F2.8 is an ultra-wide angle fisheye lens with complete manual operation. Its optical system consists of 11 elements in 10 groups. It is designed for APS-C sensor size cameras. With an angle of view of 180½, this lens produces a dramatically curved perspective that bends straight lines and exaggerates the distance between subjects. It allows one to capture the entirety of a massive subject like a building or the ocean, opening up new possibilities and surprising results. This lens can also be used for stitched full-screen immersive panorama shooting as well as VR material collection.