Looking for an adapter to mount a 35/2.5 w-nikkor on to an M2. From what I've been told the type 1 adapter is required for the infinity lock to work/clear. Not picky on brand, as long as it's the right type, pulls up 35mm framelines on an M2, and is known to work. Anyone have a spare? Attached is a photo showing the difference in adapter types (credit goes to cameraquest.com, I hope that's okay).