22" Extralong Monorail for the Bender 4x5 View Camera only $19.95 The standard rail that comes with the 4x5 is 11" long, fine for most normal lens work at most normal distances. But if you need to do close-ups (closer than 10" with a 150mm lens) or longer lens work, you'll want the 22" Extralong Monorail. It is easily interchageable with the standard rail and, for field use, it can strap to a leg of your tripod for travel.