Few things are more ambiguous or hotly contested than the definition of street photography. Do all pictures have to be taken on a street? Do they have to have people in them? Do they have to be candid? Should you ask people's permission to take their picture before you take it, after you take it, or not at all? Should you shoot stealthily from a distance or get right in people's faces?

The 35mm focal length is supposed to be the sweet spot for street photography. Fujifilm has a compact 23mm f/2 (35mm full-frame equivalent) prime lens that gets rave reviews, has almost instant autofocus, and is weather resistant to boot. But what if you don’t need autofocus, or you don’t have $450 burning a hole in your pocket? Third-party manual focus primes can be a great low-cost alternative, and depending on your needs, the Zonlai 22mm f/1.8 might just fit the bill.