I have had my Canon t3i for about two years now and have always wanted a wide angle lens to add to my collection of lenses, but I have never known which to buy. I have went to many camera stores and have a ton of different recommendation, mainly two which are total opposites. First I hear buy lenses made specific for crop sensors because you have a crop sensor camera(obvious). Second I hear that it is okay to buy full frame lenses, and is actually recommended to do that so that if I ever do upgrade bodies to a full frame sensor camera I will have that lens to use. So you can see why I would be confused on what to buy. I feel like I have looked at all the wide angle lenses out there I just don't know which to buy and which would be best for me. I am an 18 year old so I am about to go into college, which means I won't have a ton of money this year to spend on upgrading bodies, but I am extremely interested in photography so I do plan on upgrading bodies in the distant future (2years or so). For right now I don't want to exceed $600 for a wide angle lens, and honestly if we can keep it to 3-500 that would be awesome. Any recommendations for specific lenses, pro and cons on specific lenses, really any opinions will help! Thanks!

