A Canon patent was found over at Northlight Images for a 50mm/1. 8, which was replaced relatively recently, and a APS-C 30mm/1. 8 lens has appeared at the Japanese patent office (No. 2017-102352 ) Full frame lens specifications: Focal length 51.
60mm F number 1. 85 Field angle 22. 75 Image Height 21. 64mm Lens total length 84. 19mm BF 39. 08mm APS-C lens Read more. . . . canonrumors.com