Underwater housing Ikelite for Sony a9, a7R III

Ikelite's a9 and a7R III housing are designed from the ground up to provide full camera control and connection for external strobe lighting out of the box.

Lens ports
The single most important feature is the new Dry Lock (DL) port system. This exciting new system is designed to be robust and easy to assemble. The new DL series ports are lighter and more adaptable than their FL counterparts. They accommodate popular large diameter, full-frame lenses with ease. If you're considering shooting professional quality lenses like the Canon 16-35mm f/2.8L III, then the DL system is essential.

Vacuum System
The included vacuum valve allows you to vacuum test the housing to check for leaks prior to putting your expensive equipment in the water. Use of the vacuum valve requires a compatible Vacuum Pump with Gauge #47011, sold separately.

Strobes
Ikelite DS series strobes can be used in manual exposure modes when attached directly to the housing using Single Sync Cord #4103.51 or Dual Sync Cord #4103.52. Install the ST1K Sony Alpha TTL Kit #46040 for the most accurate exposure and fastest triggering on the market. The TTL Kit installs quickly and easily and requires no batteries to weaken or die during your shoot.
SEA&SEA, INON, or Retra strobes with an electrical connection can be triggered in manual exposure modes using Single Sync Cord #4118.1 or Dual Sync Cord # 4118.2. Strobes without an electrical sync cord connection cannot be attached to this system.
Fiber optic only strobes are not compatible with this installation. An external strobe must be connected by electrical sync cord.

Viewfinders
The included SuperEye Viewfinder provides an enhanced view of the camera's optical viewfinder when viewed through a dive mask. The viewfinder removes quickly and easily for the attachment of an optional Straight Magnified Viewfinder #6890 or 45° Magnified Viewfinder (Type 1) #6891.1.

DL System Port Chart for Sony Alpha Series

Specifications

60m depth rating
Compatible with DL system lens ports
Controls are provided for all important camera controls; Controls are not provided for the Diopter adjustment dial, Multi-selector, Media slot cover switch, Focus mode dial; Focus mode dial lock release button
1/4-20 thread base mounts with 3.5" spacing
Near neutral buoyancy in fresh water
Actual buoyancy varies depending on choice of lens and port
Weight 2.3 kg
Size 229 x 183 x 168 mm
Vacuum valve included (pump sold separately)
Included Ikelite ICS-5 bulkhead connector with manual hotshoe for reliable electrical triggering of underwater strobes; Optional TTL accessories provides automatic exposure with compatible Ikelite DS strobes
Rear o-ring # 0132.59
Front o-ring # 0132.45