The Housing:
 
The Aquatica A7rIII housing is one of the smallest yet most ergonomic housings on the market. The housing’s design is centered on the user being able to concentrate more in the creation of their image rather than how to use the system. There will be much less figuring out of where controls are. All the controls are set to be self centering and are spring loaded. The user only needs to set the camera on the tray and slide it into the housing, no alignment needed. Our designers utilized a new method to access the new joystick (crucial for selecting any one of the 425 AF points on the sensor).
All of the buttons and dials on the housing are easily accessed without having to let go of the handles. Not that you’d want to as our grips are one of the most comfortable in the industry and they are included in the purchase price of your housing! Since the camera is easily user customizable and the buttons mapped for any almost any purpose, everything is literally at the user’s finger (or in this case, thumb) tips.
Of significant note, Back Button AF is fully supported with the housing. The AF-On control (6) is easily reached by the user’s right thumb while the shutter release (2) is simultaneously reached with the user’s forefinger. This lets the user continually track the subject in full auto focus and then fire the camera at the peak moment. Right below the AF-On button is the Video Record button. This placement is so the user will have no problems in accessing still or video capture. ISO values are easily changed as the camera natively has 3 dials set to change ISO values once the ISO button is pressed (14).
 
Specifications:
 
Part numbers
20085: without strobe connectors
20085-NK: with double Nikonos connectors
20085-KM: with one Ikelite connector
20085-OPT: with dual optical connectors
 
Composition:

Aerospace grade 6061 T6 Aluminium with a MIL-A-8625 Anodized coating and then finished with a baked on, super tough powder coat paint that is extremely abrasion resistant. Control Shafts and all push buttons are T304 Stainless Steel
Depth Rating: 90m ~ 300 ft. Can be upgraded to 130m, ~ 450ft with our deep spring kit
Weight: 2.2 kg/4.8 lbs without handles, 2.6kg/5.7 lbs with handles The A7rIII housing is 12% lighter than our previous A7rII housing!
Dimensions: 250mm x 163mm x 127mm ~ 9.8” x 6.4” x 5” w/o handles 350mm x 163 x 127mm ~ 13.8” x 6.4” x 5” with handles
 
Ports: The A7/A7rIII housing supports all our DSLR sized Bayonet Mount ports
 
Supported Accessories:
Surveyor Moisture and Vacuum System (sensor is included with the housing) simply add the valve and pump. Can be factory or dealer installed.
Aqua View and Aqua View 45 viewfinders
Full Line of the Delta 3 Arm System