Sinaron-W Large Format Lens with an especially large image circle or angle of view of 105°. The eight-elements design with focal length of 90mm has a maximum aperture of f/4.5. Produce a very bright focusing image with uniform illumination all the way into the corners.CompatibilitySinar p1 View CameraSinar p2 View CameraSinar f1 View CameraSinar f2 View Camera