Nikon PB-5 brand_Nissin 5 is a good quality

5 is a good quality standard lens for Konica Autoreflex cameras

These are manual-diaphragm tubes without autodiaphragm passthrough

but it was the 90s and things were different

and the eyepiece rotates 180 degrees for vertical shooting

Nikon PB-5 brand_Nissin 5 is a good qualityThe Nikon PB 5 is a well made macro bellows with a rigid two rail design. 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 of the rail). In excellent condition, with minor cosmetic wear.