Hello everyone, I'm been getting more and more into photography, thanks to my girlfriend, and I am looking to buy a wide prime lens that would become my main lens. My gf has a 35mm f/2.0 with which I played for a week and I loved it, except that I would love to have a bit more angle to capture more. I have a Canon Rebel XSi, so cropped body. I've been looking at several lenses (all Canon): 20mm f/2.8, 24mm f/2.8 and 28mm f/1.8. I believe that the 20mm would be a bit too wide to be my main lens, and I'm leaning toward the 28mm because it appears to be a good all-around lens, and the f-stop is quite seducing. I like to take pictures of...mostly everything that grabs my attention. Groups of people, portraits, close ups, landscapes, architecture, indoor.... So my question today is: what lens would you recommend to be my main lens? Of course, I have a basic zoom lens (20mm-90mm I believe) and my gf is getting the 17-40mm L f/4.0. Thanks in advance for your advices! Vincent.