Focus Gear for Sigma 20mm F1.4 DG DN Art E-Mount Lens Please select your Underwater Housing:CH A1 Salted Line Ergonomic design

Ergonomic design

manual zoom gear available) Working range 28mm to 50mm

+ The V2 extension ring uses a 90mm (3

Salted Line Hard Coat Anodizing Aluminium 1-inch Ball Standard Clamp ×1

Made for underwater and surf photography

Focus Gear for Sigma 20mm F1.4 DG DN Art E-Mount Lens Please select your Underwater Housing:CH A1 Salted Line Ergonomic designDive Deep with Zoom Gear Sea Frogs Focus Gear for Sigma 20mm F1. 4 DG DN Art E Mount Lens Also available on the European website The Focus Gear for Sigma 20mm F1. 4 DG DN Art E Mount Lens allows access to manual zoom function in underwater housings. It mounts onto the lens's zoom ring and controls it via the housing's zoom dial. Fits Sea Frogs housings with 90 mount. Compatible with most Sea Frogs dome and flat ports (excluding A6xxx and RX1xx