I have a second-hand Nikonos V with a 35mm lens. Both are in working order. I have recently bought a second-hand UW-Nikkor 15mm f2.8 lens and when I use it the cameras meter always says that I am under exposing, even with lens wide open, above water in bright sunlight. I believe the problem is that the rear lens element is so close to the film plane that the SPD cell cannot pick up the light reflecting from the metering area on the shutter blades. Everyone I have spoke too here (including the Australian Nikon agents) have said that the meter should work with the 15mm lens. I suspect that the lens design has been changed since mine was made but no one seems sure. The marking on the front of the lens is as follows: U.W-NIKKOR 1:2.8 f=15mm 153177. The 153177 is the serial number. If anyone is aware of this problem can they please contact me. Thanks in advance. *************************************** Neil Davenport [EMAIL PROTECTED] Phone: 0500 88 00 11 Fax: 03 9570 9388