Lomo Oct18 primes with a PL adapter. If you can deal with the usability issues they can be excellent, sharp across the frame and zero breathing. I picked up a set of 6 ranging from 28mm to 135mm for $700 and use a single adapter for all of them which was $350. Adapters can be had for about $100 but they alter the way the focus works and the front of the lens ends up spinning while focusing. Not going to find anything cheaper than that.
Manjeet Singh reacted to dhessel in Affordable PL?