I'am going to visit "Mardi Gras World" in New Orleans soon and wonder if I could get a few tips on what equipment I should take to get some good photos.
Shooting indoors - camera that is great at high ISO, wide angle lens like a 24mm that is capable of wide open aperture. Tripod or mono pod if they let you.
I normally shoot a Sony A6300 with a 16-70 f4.0 lens........I seldom use flash but do have a Nissin flash rated at GN 50.
I have never been to Mardi Gras World so I'm not sure how dark it might be and if I might need to use a wider lens. I guess the floats are pretty large and not too sure how wide of a lens would be necessary to get a good shot of the floats.
A fast lens if you are going for the carnival would come handy. Otherwise New Orleans is not much different from other cities. The roads are tide a wide angle lens could serve you well. Location would be my biggest concern. Book a room with a balcony over the parade route.
if its an indoor museum, you'll want a flash and a diffuser of some kind.
the best thing to do is go to youtube, and look for videos of the place. i do that all the time. finding out how the layout looks, darkness etc. the other way is to look it up in flicker and view the EXIF, and you can see how long the speeds are, iso etc, and get a good idea that way. assume it will be dark in spots and choose from that.
if this is the place, you have tall ceilings, so a bounce flash would be useless. but the walls are bright, and it doesn't seem that dim. just flat colors. but if there are people building things, they may not want the flash. so i would go with a mid range zoom, whatever is the fastest. you can shoot things as a panorama to get the entire item in. i do that all the time.
youtube is often a friend, you can get a lot from it, like how large a place is, people film everything. if you have something to bounce a flash, i'd bring it just in case.
It was a very nice tour (nearly two hours) flash was not allowed. Most everything was large and close so the wide lens worked out best. It was difficult to try to isolate the individual pieces of art.