7artisans 7.5mm / f2.8 weights as light as 265g, which is portable for your photography. 7artisans 7.5mm/f 2.8 fisheye lens features a maximum aperture of F/2.8. Model: 7artisans 7.5mm F2.8II. Compared with the first generation, the II version's housing adopted a new oxidation function to make the lens more lighter and smaller.
eBay