Opteka 6.5mm f/3.5 Fisheye Lens for Nikon D7500, D7200, D7100, D7000, D5500, D5300, D5200, D5100, D3400, D3300, D3200 and D3100 Digital SLR Cameras Newly improved 2016, manual focus, digitally-optimized fisheye lens Ultra-wide 6.5mm focal length HD, super multicoated optics for the sharper images 10 Elements in 7 groups (1 spherical lens) Removable hood allows for full 180 views