So I'm pretty impressed with this lens and can think of a bunch of times it would come in handy and be useful for me. I'm not so impressed with selling my car to be able to afford it. I've started looking around for a suitable lens that is more in the range of only selling my motorcycle to afford, but I'm not sure what the low-down is on them.
Basically I'm looking for a fast wide angle for a FX camera. 35mm or less f1.8 or faster. The two I think are best are the Sigma 28mm f1.8 (I think this is a little better then the Sigma 24mm 1.8) and the Nikon 35mm f1.4 AIS manual focus.
Is there another one or two that I'm missing. Is one of these something to stay away from? I've read the Sigma 28mm has some focusing issues but mostly on Canon DX cameras.