Brilliant² Rota Grad Rota-Grad FS ND 1.2 (4 stops) A Full Spectrum Neutral Density Filter in a geared rotating tray with Rota-Lock Fits directly into 4x5.65 matte boxes, including clip-on matte boxes 138mm round graduated FSND filter installed in a geared rotating tray Fast and easy alignment of the grad line on tilted horizon, mountain slope or scene element Shots with high dynamic range like landscapes with blown out skies can become beautifully exposed with well-defined clouds Emphasize specific areas of a scene by darkening a foreground or a corner of the shot Minimized filter handling, because the grad is always in a tray Geared thumb wheel with Rota-Lock Lindsey Optics Rotating ND Grad Filters are available in 4 densities: ND 0.3 (1 stop), ND 0.6 (2 stops), ND 0.9 (3 stops) and ND 1.2 (4 stops) FS ND Rota-Grads attenuate the full spectrum of light including UV, visible and infrared. The filters feature both AR and Easy Clean coatings for improved handling