How to use: 1. Screw the ring adapter onto your lens. 2. Slide the filter holder on the ring adapter until it snap in place. 3. Slide the filter (up to 3) into one of the filter holder slots. 4. Mount Lens Hood onto your filter-holder by pressing on the upper and lower parts of the lens hood. Provide a way to fit larger diameter filters or accessories onto a smaller lens. Made of aluminum alloy, and precision production ensures smooth mounting. Extremely solid and , polished and finished with anodized matte . Fit any lens with the same filter thread, manual or autofocus, digital or film. Colour: black Material: aluminum alloy Package Contents: 1 * G.ND2 filter 1 * G.ND4 filter 1 * G.ND8 filter 1 * G.ND16 filter 1 * ND2 filter 1 * ND4 filter 1 * ND8 filter 1 * ND16 filter 1 * Ring Adapter 1 * 10-slots filter case 1 * Lens Hood 1 * 3 Slots Filter Holder 1 * Wide Angle Filter Holder 8 * Step-up ring (including: 49mm-52mm, 52mm-55mm, 55mm-58mm, 58mm-62mm, 62mm-67mm, 67mm-72mm, 72mm-77mm, 77mm-82mm) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Gradual filter is a MUST for digital users, because the digital sensor unlike film has very low exposure tolerance. Detail will be lost on both low and high light area. To correct this, you need gradual filter to balance it. Control light and colour directly on your raw images at the time of . Same filter for all your lenses by just replacing the adaptor ring. Otate, slide, decentre in all directions for more precision and creativity. 1 set Gradient Neutral Filter Kits & 1 set Step-Up Adapter Ring Set Keep the quality of your images without excessive post production work. Create specific effects saving time on your computer.