I recently bought a Canon EOS 1300D to which I would like to fit a Kiron wide angle lens. The Kiron is a 24mm f/2 55mm lens diameter in the front, 45mm diameter at the back where it needs to be connected to the camera. At the back of the lens are 2 protruding small objects approximately 2-3mm sticking out. One is movable, and controls the aperture setting, one is not. Do you have an adapter that would make it possible to use this lense with my Canon camera?