The Flashpoint Swivi Foldable LCD Viewfinder V.2 is a Professional quality LCD Viewfinder loupe designed for shooting video on a DSLR. The loupe provides a clear,magnified view of the camera LCD, essential when shooting video in daylight conditions. Two viewing modes are provided, Magnification Mode and Standard Mode. Magnification Mode provides a 3x view of the LCD via a focusable lens with a comfortable rubber eyecup, simply flip up the eyepiece to switch to standard mode that provides a hooded(from sunlight) direct view of the LCD. The rubber eyecup can be rotated to suit left or right eye shooting. The viewfinder loupe attachesto the camera using a mounting plate(supplied). To install the loupe, first attach the mounting plate to the bottom of camera through tripod mount. The loupe then clips onto the mounting plate and can be fitted and removed at any time. A neck lanyard is supplied so the loupe can be carried easily when not attached to the camera. Fits on most DSLR cameras with a 3" LCD, but from corner to corner it"s actually 3.11" inches, so it"s almost perfect on cameras like the Canon 5D Mark III. The brackets are designed to adjust for a variety of different cameras, something shooters will appreciate if you own more than one model (Nikon, Canon, Sony).