I've enjoyed shooting with my one and only prime - the nifty fifty, during the past few months that I've owned it. Although I like the sharpness and the low-light capabilities, I find that the focal length is not really for me, since I shoot indoors mostly, (therefore I can't move back far enough to get the shots that I envision). So, I've decided within this coming month or so, that I want to replace my nifty fifty for something that's a little wider. My price range is roughly 300 USD, but I could push it slightly, if need be. I don't mind buying used. Several lenses that I've looked at are:
1. Sigma 30mm f/1.4 - I've noticed the rave reviews that this lens seems to be getting. However, i've also heard of difficulty obtaining a good solid copy of the lens.
2. Canon 28mm f/1.8 - Looked at this one briefly. There does not seem to be as many people saying anything about this lens compared to the Siggy.
3. Canon 35mm f/2 - Same as the 28mm f/1.8