I love my 50 mm lens, but sometimes it's just too zoomed in to be practical. It's nearly impossible to shoot indoors with it since I have to stand so far back to get everything in frame. But the pictures it takes come out magical so I would like to try out the 35 mm since it is less "zoomed in"
Ever since I first got a camera I have really loved taking close up shots of things. One day I would love to own a macro lens to take proper close up shots of my plants and the bugs that like to come visit my garden.
And last but not least, probably something I'll never own, but I keep it on my wishlist because it's fun to dream. A fast zoom lens. It's fast because the aperture is huge and can let in a lot of light, allowing you to have a higher shutter speed than normal, in darker situations. My 50 mm is a fast lens and I am obsessed with the effects it has. I would love to see what kind of photos a fast zoom lens could take, but they cost well over one thousand dollars!