It is rated for use at depths 40 meters (130 feet) and is tough enough to withstand the ocean's raw power, including big waves and rough shore breaks.

The Salted Line CH A7IV GEN2 Housingwith a 4-inch Optical Glass Flat Port bundle is perfect for both prime and zoom lenses when shooting at the water's surface. While they can be used for underwater photography and videography, remember that a flat port can decrease your lens's angle of view by up to 28%. For wide-angle and fisheye lenses, a dome port is recommended instead.

This housing provides full control of all camera functions (excluding the touchscreen) and is equipped with a standard 90mm (3.54'') bayonet mount, compatible with a wide range of Sea Frogs flat and dome ports (except those made for A6xxx and RX1xx camera housings).

How deep can it go?

The Salted Line housing for Sony A7IV cameras is rated for depths of up to 40 meters (130 feet), ensuring reliable underwater performance.

The Salted Line CH A7IV GEN2 version offers several upgrades over the standard Sea Frogs housing, including:

• Triple-sided metal latch locking system

• Photo/Video/S&Q Switch

• Integrated M33 threaded bulkhead interface

• A larger LCD screen window enhances visibility.

• Compatibility with a detachable 2-stage shutter grip trigger.

• Enhanced resistance to hydrodynamic shock for use in harsh conditions.

• The control buttons have a 70% increase in spring stiffness, offering better tactile feedback for precise control.

• Please note: The upgraded housing version does not include a dedicated 5-pin bulkhead port. However, a third-party sync cable bulkhead can be connected via an M33 bulkhead interface using an M16-to-M33 step-down adapter .

Whether you're into underwater or surf photography, this housing provides enhanced durability, functionality, and precision, making it the ideal choice for Sony A7IV users seeking to film stunning footage in challenging environments.