SWIVI viewfinders provides an extremely clear, magnified view. Essentially when shooting video in daylight conditions. This viewfinder features two different modes: Magnification and Standard. Magnification mode provides a 3.0x magnified view on the LCD. Simply flip up the eyepiece to use as a sunshade hood. Includes an adjustable rubber eye cup for user preference and comfort. Attaches to your camera with an included adapter frame. Installing a Swivi Viewfinder is quick and simple. Start by cleaning your LCD screen with a soft cloth then remove the protective paper on the adapter frame, align it to your LCD screen and press. Rest the camera down on the LCD screen for 24 hours to let the weight of the camera evenly set and ahere the adapter frame to your LCD. Once the adapter frame is properly attached to your LCD simply snap the viewfinder on to the adapter frame. For quick removal of the viewfinder simply press the release button on the bottom of the viewfinder. Features 3x optical magnification Sunshade hood Adjustable diopter Rotatable eye-cup for comfort/user preference 2 framing modes : Magnification 3x and Standard 1x Supports 3.2" LCD with ratio 4:3 and is compatible with 3:2 Specifications Lens: 3 piece/group Magnification: 3x Diopter: 90% Lens Aperture: 40mm Support: 3.2" 4:3/3:2 Mode: Magnification/sunshade Screen size 66.6mm x 48.7mm Package Includes SWIVI Viewfinder S2 Adapter Frame Lanyard Compatibility 3.2" LCDS with 4:3/3:2 ratio Canon 1DX, 5DIII Pentax K3, 645Z Nikon D4, D4s, D800, D800E, D600, D610, D7100, DF