The Underwater Housing for Sony Alpha 1 Camera (Dual Fiber-Optic Ports & LED Flash Trigger) from Aquatica is CNC machined from 6061-T6 aluminum with a MIL-A-8625 anodized coating, and features a baked-on, extra-tough powder coated paint. All control shafts and push buttons are made from T304 stainless steel. The field-proven Surveyor Vacuum System (pump, valve, and sensor) will assure the integrity of the housing's seals before you dive. The housing is supplied with Aquatica's Galileo type eyepiece. This high-quality, coated optical finder provides a bright and full view of the camera's view finder. For connectivity, the housing is equipped with a large 0.95" HDMI bulkhead. The A1 is compatible with all Aquatica DSLR-sized bayonet mount lens ports.