Opteka 6.5mm f/3.5 HD Aspherical Fisheye Lens for Sony Alpha A99, A77, A65, A58, A57, A55, A37, A35, A33, A900, A700, A580, A560, A550, A390, A380, A330 and A290 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 degree views