canon g5 Because the system is suitable for the purpose of the current camera, wide angle and telephoto converter affects the entire zoom camera. Wide-angle increases - the scenes are more scenarios, more groups of people, and the interior looks more space. Dual Converter 0.45 x wide angle viewing angle, which allows up to twice that figure (and a telephoto lens, which also widens not zoom close enough). 2.2x converter doubles the focal length of the camera larger, so that things twice as close. Opteka conversion lens can actually improve the image may be a digital camera, and is the only accessory that can. By eliminating flare and ghosting, the ugly cousins ​​of reflection and refraction, before arriving in the system of original lens of the camera can be a much cleaner than digital ..