There are three motor drives for the Nikon F2.
MD-1
MD-2
MD-3
I have one MD-1 and two MD-3 motor drives.
The MD-1 and MD-2 motor drives are very similar in looks and function. The MD-1 and MD-2 motor drives cannot be removed from camera body when film is in the camera because the film will be exposed to light.
The MD-3 motor drives are less expensive. The MD-3 has a slower firing rate than the other two. The MD-3 has plastic parts that tend to break. The MD-3 does not have a rewind feature. The MD-3 has one major advantage over the MD-1 and MD-2 in that it can be removed from the body without exposing the film in the camera to light.
There are two battery packs for the three motor drives.
MB-1 Battery Pack
Battery holders are very fragile
Battery holders hold 10 AA batteries (1.5 volts per battery).
Uses alkaline or rechargeable alkaline batteries.
Also uses NiCad batteries.
Can use rechargeable NiMH batteries but they are not recommended because they are only 1.2 volts per battery.
Fresh batteries will last for over 30 rolls of 36-exposure film.
MB-2 Battery Pack
Battery holders hold 8 AA batteries (1.5 volts per battery).
Uses alkaline or rechargeable alkaline.
Cannot use rechargeable NiMH batteries because they are only 1.2 volts.
Fresh batteries will last for over 30 rolls of 36-exposure film.
Nikon F2 with motor drives by
Narsuitus, on Flickr