Nikon PB-4The Nikon PB 4 is Nikon's most unique and versatile bellows, with front standard left right tilt and shift capabilities that are indispensable for making use of the limited depth of field in macrophotography. Accepts any Nikon F mount lens; the camera end is a standard F mount but practical compatibility will depend on the shape of your camera (some bulkier AF and digital cameras will require an additional extension tube not included to clear the back