The Canon RS-SL03WF Short Fixed Zoom Lens ensures reduced shadows and eye glare. It provides a throw ratio of 0.80:1. The lens can be used to display imagery on 40 to 300-inch screens. This lens comes with a fixed focal length of 12.8mm and F2.0. You can adjust the lens shift ±11.3% vertically and ±4.6% horizontally.