Most will work. Of course DX lenses will give you dark corners and G-lenses
(without apperture ring) is a
bad as you can't set the apperture. But else you can use e.g. the AFS
17-35/2.8 zoom, AFD 85/1.4 and so on.

Max

The lenses designed for the digital cameras will not work. The area
of coverage is too small. Any "G" type lens will not work either.
The "G" lenses (which include many of the digital camera lenses) have
no apeture (F stop) ring so you can't set the F stop.

In an emergency, you can use stop down metering and exposure, which will
give you the miniumum (highest F number) apeture.

Since the FM2 has no automatic modes, any AI or AIs lens will work fine.

Nikon started making AI lenses in 1977, older lenses could be converted.
IMHO if you don't have any lenses, I would not bother with converting
an older lens. The difference in price between a pre-AI and AI lens
will probably be less than converting one.

Series "E" lenses work well on the camera and give you a lot of value.
Autofocus lenses that have an apeture ring on them will also work
fine, but the manual focus ones would be easier to focus, having wider
focusing rings and a helical focusing mechanism.

Geoff.

While all of Nikon's current lens offerings will mount on an FM2,
many of their newest designs are designated with a 'G', indicating that
they do not have an aperture ring.  These 'G' lenses are effectively
useless on an FM2.

Some of the 'G' lenses are also designated as DX.  These lenses are
designed specifically for use on dSLR's and do not cover the full 35mm
frame at all focal lengths.

Do not use the (thankfully discontinued) IX-Nikkors on your FM2.
Attempting to do so can damage both the camera and lens.

That still leaves quite a few lenses in production, plus a huge
number of both autofocus and manual focus used lenses.  You'll
find that the manual focus lenses have a far better feel when
focusing and are bargains to boot.  I recently paid $100 for a
pristine Nikkor 80-200mm f/4 in AIs mount.

Nikon compatibility rules are arcane to say the least, and if some
of the rumors floating around are true it's only going to get worse.

Here's a compatibility chart that may help:
http://www.nikonians.org/html/resources/nikon_articles/other/compatibility.html