TARION TR-V1 Universal LCD Display View Finder Viewfinder for 3.0" 3.2" Screen DSLR Canon 500D 550D 600D 650D 700D 60D 70D 5D MarkII 5D MarkIII 6D 7D 7D2 Nikon D90 D7000 D7 100D 5000D 5100D 5200D 530 Use rotary knob on both sides to adjust up and down, more convenient and beautiful than original bottom hex adjustment. Adjustable metal parts on both sides can provide an extra protection for the frame of viewfinder. Baseplate fits MANFROTTO ballhead 501/701. Thickened and extended quick release base plate, better fit the camera bottom. Rotatable and removable comfortable eye-cup.