This item was found during a personal estate clearance. ・NIKONOS IV-A ・UW-Nikkor 28mm f/3.5 ・FRAME FINDER ・Instruction Manual The shutter functions in all modes: auto, mechanical, and bulb. However, I have not confirmed whether it can take photos with proper exposure through actual shooting. The condition of the O-rings is unknown, so waterproof performance cannot be guaranteed. There are also many scratches on the body. Please consider the above information before making a decision.