I have been to both Lower and Upper Antelope Canyon. They dont do any more dedicated photo tours, but that isn't a problem. You can get great shots on the regular tours. The photo tours were clogging up the canyons as each photog with a tripod had photos set up for them to take. It was limiting the time for other tours. No tripods allowed anymore. You dont need one anyway.
One suggestion, if you do Lower Antelope Canyon use Ken's Tours, they are the original and still the best IMHO. They know all the photo tips and you can also book a smaller group tour, just your immediate party and you get a bit longer in the canyon and have less other folks to get in the way of your shots.
https://www.lowerantelope.com/Important, Lower Antelope Canyon requires some descending down stairs into the canyon, so if you are physically challenged then I suggest you do Upper Antelope Canyon, where you walk into the canyon at ground level, much easier for anyone physically challenged. Most however dont have real issues descending the stairs unto Lower Antelope Canyon where you do a gradual walk through, up and out.
I will include a shot of some of the stairs down into Lower in my shots I will include here.
Note: the two shots of Environmental Scientist Brooke H. were shot in a small side slot canyon next to Upper Antelope Canyon. Our tour had enough time and our Navajo guide took us there after touring Upper Antelope Canyon. This first of these two shots of Brooke was chosen as a Worldwide Photo of the Week by Sony Alpha Photographers back in 2020.
Bring comfortable walking shoes, take just one full size camera into the canyon preferable with a wide angle or wide angle zoom lens, as you dont want to be changing lenses with all the fine dust in the canyon. Of course if you use a compact camera you could take that along with a better quality fullsize camera. Most of my shots here were made in the 17mm-24mm focal lengths. You cant take flash, but you dont need it. You will likely be shooting at ISO 400 or higher and most cameras have enough dynamic range to handle the changing lighting conditions in the canyons. Remember the canyon walls aren't moving , so you can use slow shutter speeds if you want to keep your ISO down, or want to use a smaller aperture for greater depth of field.
Dont forget to shoot some shots straight upwards for some dramatic compositions, and if you do shoot straight up to include the sky, of course your exposures will change. In that case just try to use an average exposure between the sky and the canyon walls. Your modern cameras have enough dynamic range for you to save both highlights and shadow tones in those shots. I did not need to do any exposure bracketing with my Sony A7RIV and Sony A9 cameras.
Unless your camera does instant exposure bracketing, you wont have time to set up any tripod to do that, and no tripod are allowed anymore anyway.
It is a bucket list place for any photog. Either Upper or Lower is super. If you have the time and money you can do both on the same day. Just be sure to make your tour reservations in advance. Only Navajo tour-guided tours are allowed as this is part of the Navajo sacred lands and tribal park. Try to make your reservation for a time of the day when there is decent overhead sunlight to filter into the canyons .
CLICK ON DOWNLOAD TO SEE BETTER RESOLTUION OF EACH SHOT.
Cheers and best to you.