77mm is one of the most popular sizes of LEE100 System Wide Angle Adaptor Ring for 35mm focal width lenses or wider, which reduces the chances of vignetting when using the 100mm filter system.
Overview
77mm is one of the most popular sizes of LEE100 System Wide Angle Adaptor Ring for 35mm focal width lenses or wider, which reduces the chances of vignetting when using the 100mm filter system.