The PF is an "E" type. I can to set the aperture on a body that supports "E" type apertures and then I use the lens as a fixed aperture lens. I guess I will fix it to f=4.0 for usage on the FM-2. Did not yet think about how this will affect measuring. I simply take a digital body with me as a light meter for the FM-2...
First encounter:
1) The camera is much heavier than I remember her.
2) The sound is very loud and snappy. I remember her much more discreet.
3) I entered the red light district. My old FM-2 did sure not have +0- in RED!
I have to look that up.
The FM2 always had a very distinct sound. I really like it around 1/15th and again around 1/125th and 1/250th.
It was never quiet though.
At 540 grams it is about 2/3rds on the way to a Nikon F3 and half a Nikon F Photomic. That is without the MD-12. With an MD-12 and 8 eneloops it will be quite abrick. Excellent old-school-VR
As to the red lights, the FE2 has a match needle. The FM and FM2 always had the red +0- on the left hand side.
E-type apertures?
The camera will meter with the lens wide open, shoot with the minimum aperture. Unless you wedge something in between the aperture lever on the lens. Things levered in there can fall out and end up wedged in the shutter. A nice 300mm f4,5 ED-IF costs about $150 and is fully functional on the FM2
(the ED non-IF is optically superior though)