Opteka HD MC Graduated Color Filter Kit for Sony E-Mount a7r, a7s, a7, a6000, a5100, a5000, a3000, NEX-7, 6, 5T, 5N, 5R and 3N Digital Mirrorless Cameras (Fits 49mm 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 Works with any of these Sony E-Mount mount lenses: 28mm, 30mm, 35mm, 50mm, 18-55mm, 28-70mm, 55-210mm and any other lenses with 49mm or 58mm filter threads Colored half that adds color to a portion of the image, while the clear half maintains a neutral color balance Useful for adding dramatic and creative effects to skies and other bright regions while retaining more realistic results within the other half of the frame Constructed from optical glass and set within rotating aluminum filter rings for controlling the placement of the color about the frame Front threads for attaching a lens cap or stacking additional filters for further creative effects