Planning on purchasing a BlackMagic Pocket Cinema Camera? Or maybe you decided to go with a Panasonic GH3, or the new Panasonic GX7. These cameras (especially the Pocket Cinema Camera) have quite a crop so I suggest looking into some wide lenses.
Here's a deal on a lens that I highly recommend for such cameras with a crop - The Rokinon 7.5mm Fisheye. Typically this lens will run for $299 dollars and you can see that here (via Amazon) and also here (via B&H).
Right now for the next few days the Bower branded (same exact lens) 7.5mm Fisheye Lens is just $199 + 4% Rewards saving you more than a cool hundred bucks. Deal ends in a few days.