Canon EF-S 35mm F2.8 Macro IS STM Underwater Port by Sea & Sea DX 15 | SS-30139
Bright sunlight cuts through the water column as you descend toward a coral wall. Your camera body locks into the Sea & Sea DX 15 housing, and when you bring the Canon EF-S 35mm F2.8 Macro IS STM lens to bear on a tiny shrimp hiding in a gorgonian fan, the clarity is immediate. This port is built specifically to mate that combination of crop-sensor Canon body, macro prime, and weather-sealed underwater enclosure.
- The glass in this port is hardened optical acrylic, machined to preserve the lens?s full corner-to-corner sharpness when shooting at life-size reproduction ratios within arm?s length of your subject.
- Dual-lock bayonet mounting ensures you can swap ports between dives even if your fingers are still cold from the last tank change, without tools or guesswork.
- Ringed o-ring grooves on the second stage create a redundant seal against saltwater intrusion at depths the DX 15 housing allows, so you don?t worry about pressure at 40 meters.
- The flat-port optical geometry maintains the STM motor?s near-silent autofocus tracking during slow push-in shots on skittish gobies, which you?ll want when ambient light is low and you need the Image Stabilization working against surge.




