I recently bought a set of m43 adapters to use a few of my older lens with. In the set of adapters was a c-mount adapter. I spent a few hours looking into possibilities to add to my lens collection but feel like there are so many choices and I have so little knowledge. I'm looking for a wide angle lens in the 35mm equivalent of 18 to 24mm range that's f/2 or better and I'm looking for a bargain basement price. Any suggestions with a budget of approximately $50?