This may not specifically pertain to digital cameras, but it's still considered an add-on lens I guess...

While rummaging around I found what appears to be a big old video camera lens. The maker is "Angenieux" and says it was made in France. Along with it, I found some motors that appear to hook up somewhere and make it turn. I took a bunch of photos, which you can look at here: http://www.coasters2k.com/lens/index.html

I apparantly have no use for it, since I don't know the first thing about cameras or lenses. Is it worth anything, perhaps selling on eBay? If it's worth anything, how much? Thanks for your help... I took a bunch of photos of every angle I could think of, if you'd like another angle just email me.

i couldnt give you numbers, but in the late eighties/early nineties these lenses were extremely sought after... I know they were used by movie photographers ( and I mean the real movie features) and by photographers mainly for med. or large format (i cant remember which).
You should do a search on them, or buy a copy of the SHUTTERBUG magazine: it usually has quite a lot of classifieds of all sorts of equipment.

You've probably got a lens off a prof. broadcast TV cam (possibly Thomson). The motors are usually for zoom iris and focus, although you can strip these off. The lens is probably built for 2/3" ccd if the lens is newish, or plumbicon tubes if old. Far too much glass for our current digicams.

I don't think you can use it as an extender on a still digicam, unless somebody can modify some of the optics. Not quite a shirt pocket lens! Angeniux is (were?) a very respectable manufacturer of high quality real glass lenses.