Originally posted by schnitzer79
best bang for buck is probably the F35-70 ($20-$30)
True, that! However, I have one and almost never use it, mostly because it's a bit slow and doesn't cover much ground in both short and long direction relative to the fast 50 that's always with me anyway. Out of all the <100$ bargain lenses I have (stopped counting at about a dozen or so), the one getting the most use by far is the Super-Takumar 50/1.4, so that gets my vote.
I just saw that I had already posted to this thread in 2011 endorsing the DA-L 55-300mm. I still stand by that, if $100 is not the limit.