3.3x Zoom Right-angle Viewfinder Screen Magnifier for Nikon Fx D700 D800 D800e D3 D3s D3x D4 As the accessories common used in photography, this brand new Seagull viewfinder is imaging of high quality, the lens is clear and bright, connector is accurate. The view can be changed 360 degrees at will. It benefits focusing when you are macro shooting with diopter adjusted function.