CameraPlus - CP-V1 Universal LCD Display Viewfinder 3.0x Magnifier with Quick Release Plate for 3.0" 3.2" LCD Screen DSLR and System Cameras Use rotary knob on both sides to adjust up and down, more convenient and beautiful. Rotatable and removable comfortable eye-cup. / Shutter to protect eye-cup glass 3x Optical Magnification, Low-angle finder , Adjustable diopter Detachable mounting plate can be used on tripod directly /Baseplate fits MANFROTTO ballhead 501/701. Adjustable frame fits different camera bodies. / Adjustive metal parts on both sides can provide an extra protection for the frame of viewfinder.