Here are some shots I took about 15 years ago in Carlsbad Caverns NP.
I used a Canon 35mm camera, a 20-35mm wide zoom, a tripod, a remote,
and an external flash. I can’t remember whether I used mirror
lock-up. I am fairly sure they were shot around f5.6 to f8 to get the
most depth of field. I used 400 ISO Kodak Royal film.
http://BillPPW350Z.smugmug.com/gallery/3262626_iZx8t/1/189511651_NbMeW
Depending on the light, the IS on the 17-85 and/or a monopod probably
won’t cut it. I’d go with the 10-22, a tripod, a remote, and an
external flash unit.
Hope this helps, and please post some pictures when you get back!
--
Bill
I’m no expert; I just like to take pictures and share them with
strangers
http://billppw350z.smugmug.com/