I've found it a challenge getting consistent good quality ultra wide angle to fisheye shots on super 8. It means we've got to have either a good quality wide angle adapter that stays in focus, or a Century C mount of 1.9mm, or a 2.5mm which seem next to impossible to find and then have it collimated for our camera. Duall in NYC rents a 1.9mm but if you rent you've got to have it collimated for your camera and if you don't live in NYC that also means extra days of rental time to have it shipped