Nauticam EMWL 100° Objective Lens
This is an extremely versatile angle of view for the Extended Macro Wide Lens. It is the smallest and sleekest in physical size making it a good choice for timid subjects and tight spaces. It is designed with 9 elements in 6 groups. An angle of view of 100° is still a lot of background space for small macro subjects or to shoot wide-angle with. A 16mm lens on FF is 107° for comparison.