Nikon DK-17M magnifying eyepiece for D1 / D2H (s) / D2X (s) (Camera)
The eyepiece I had bought primarily for my Zeiss 135 f2 ZF.2 with manual focus in conjunction with the D800. Since the eyepiece is a real help when focusing. However, I use it now become permanent. The gain in near the viewfinder I can only recommend