Sony a7 IV. The Sony Alpha a7 IV is the heart of this kit. It offers a 33MP back-illuminated full-frame sensor that works in tandem with the BIONZ XR processor to deliver incredibly fast performance, excellent image quality, and great low-light performance. This full-frame camera can capture UHD 4K 60p 10-bit 4:2:2 video in Super 35 mode with full pixel readout to ensure that there’s no binning, which helps you achieve those perfect underwater shots. This unit is powered using a BC-QZ1 charger and FZ100 battery.

Sony FE 16-35mm f/2.8 GM Lens. As a part of the G Master line of lenses, the 16-35mm f/2.8 is designed to cover the full-frame sensors on Sony E-mount cameras. When used with the Sony Alpha a7 IV, this lens’s zoom range is wide. Like really wide. Its field of view ranges from 107° at its widest to 63° at the long end, making it a great companion for the a7 IV.

Under The Sea The Ikelite DL Housing for Sony a7 IV contours perfectly to the camera, is completely corrosion-free, and super durable. The transparent backing allows for a clear view of the main o-ring seal, port o-ring seal, and camera controls. We choose to rent Ikelite-branded housings because they give you access to almost every camera control underwater.

Ikelite Base with Dual Quick-Release Handles. This rental includes Ikelite’s Base with Dual Quick-Release Handles, which aids underwater maneuverability, is easy to attach and remove from the housing, and doesn’t interfere with the housing’s operation.

Underwater Housing Assembly Tips. Always assemble the housing first without a camera in it on dry land. Then slowly submerge the empty housing into a bathtub or a bucket, rotate the housing all around, and look for escaping air bubbles. This could be a sign that the housing is not assembled properly and water could be getting into the housing. Only after a few assemblies and dunks with no leaks do we recommend putting the camera in the housing. Again, slowly submerge the housing into a bathtub or a bucket, rotate the housing all around, and look for escaping air bubbles. As a courtesy to our gear-cleaning team, try to give the housing a quick freshwater rinse and dry off before sending it back if possible!

Underwater Shooting Tips. Practice using the camera and housing on dry land to get comfortable with adjusting settings before you get underwater. Get as close as possible to your subjects. Too much water between the lens and your subject reduces contrast and sharpness. Keep your shutter speed high—you’re often moving more than you realize when you’re not standing on the hard ground.