Sea & Sea Port Extension Ring 40 #56111

Used on Nikon Ai AF Micro-Nikkor 105mm F2.8D, Nikkor ED 14mm F2.8D, Nikon Ai AF-S 200mm Nikkor ED 17-35mm F2.8D (IF), Nikon AF 200mmZoom-Nikkor ED 18-35mm F3.5-4.5D (IF), Cannon EF-S 10-22mm F3.5-4.5 USM, EF 16-35mm F2.8L USM and EF 15-35mm F2.8L I USM, Sigma AF 14mm F2.8 EX Aspherical HSM, 20-40mm F2.8 EX DG Macro/HSM and 15-30mm F3.5-4.5 EX DG Aspherical Lenses.