Submitted by michael on Thu, 01/01/2015 - 16:03 URL http://www.instructables.com/id/SPL00U0F0ZTLKTR/ 1. A wide-angle telescope lens. I chose a 25mm KE (Kellner) lens from my collection. The wider the angle, the less vignetting you will have. The b... Tags 1. A wide-angle telescope lens. I chose a 25mm KE (Kellner) lens from my collection. The wider the angle the less vignetting you will have. The b...