 In addition to the above lenses, Canon made an even faster lens, the EF PE 300mm 1.8, specifically for photo finishes in horse races.According to one racing photographer, Canon made only four of these lenses, making it even less common than the famously rare EF 1200mm lens.Not only is this lens exceptionally rare, very little information about it is available online; the company's online Canon Camera Museum does not list this lens.