Swivi S1 for 3 LCD 43 viewfinder SWIVI is a series of professional optical LCD viewfinder designed for video shooting of DSLR camera.SWIVI S1 for CANON 5DII, 7D ....... NIKON D90, D7000 ..... What’s specialSWIVI viewfinder provides an extremely clear, magnified view. Essentially when shooting video in daylight condition.It has 2 different modes Magnification and St