Up for sale Nikon PB-4 bellows. It is in good condition. I used it with a Nikon D90 but to enable auto-exposure I put a Dandelion chip on the lens mount (look at pic). The bellows has no leaks that I could detect. All the movements are smooth - the focusing rack, tilt, and shift. The only thing missing is the slide duplicator and it appears that the screw for it is damaged. 

**Added pictures with Nikkor-p 105mm f4.0 mounted with D90**