I shoot mainly for street and travel photography with the rangefinder... I've been shooting almost 5 months with the 50mm 1.4 ASPH, I like the idea of being limited to one focal length. But just the other day, I was able to check and try at a Leica store a Summicron 28mm F/2, probably a bad move on my part. Though within my radar is the Elmarit 28 F/2.8 for the size and price. Any thoughts?