This port is designed specifically for the Canon 17-85mm f4-5.6 EF-S IS USM lens. Zoom is provided via a built-in control and gear. AF/MF and image stabilization switches cannot be changed while installed in the housing. Auto-focus only. This lens requires the addition of a +4 close-up lens to focus properly behind a dome underwater. Close-up lens not included.
Ikelite acrylic domes are injection molded specifically for underwater photography, and represent the finest optics in the industry.