Opteka HD Multicoated Graduated Color Filter Kit for Sony Alpha A99, A77, A65, A58, A57, A55, A37, A35, A33, A900, A700, A580, A560, A550, A390 Digital SLR Cameras (Fits 55mm and 58mm Threaded Lenses) Graduated color filters provide a gradual color transition for a smooth blending effect High quality metal and HD glass construction Rotating frame to allow the user to bring the colored and clear filter portions into the desired position Double threaded allowing additional filters to be screwed one over the other Very easy to attach and use, works with all 55mm and 58mm threaded lenses