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Salted Line Sea Frogs Underwater Gen 2 Camera Housing for Sony A7IV with 6” Glass Flat Port

$363.79 $380.95-22% OFF

Delivery Info

Information

Shipping
Free US shipping on all orders over $100 — $9.95 flat rate under $100. Orders ship within 1–2 business days and arrive in 3–7 business days. Shipping Policy.

Fitment
Not sure this fits your camera or lens? Check our port compatibility chart or email us for free fitment advice before you order.

Return & exchange
Not satisfied? Return unused items within 30 days for an exchange or refund. More info.

Assistance
Call us at (786) 927-7131 (Mon–Fri, 9 AM–5 PM ET), or email us at [email protected].

Additional information
Weight 2.822 lbs
Color

Flat Port Length

Long, Medium, Short
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A7IV Underwater. Flawless Optics.

Salted Line CH A7IV GEN2 Underwater Housing for Sony A7IV Cameras | 6'' Long Flat Port | Optical Glass | Black

90mm Bayonet|40m/130ft|M33 Bulkhead|GEN2|6'' Long Flat Port|Optical Glass|Black

The Salted Line CH A7IV GEN2 Housingwith a 6-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 bayonet mount featuring a 90mm diameter, compatible with a wide range of Sea Frogs dry flat and dome ports (except those made for A6xxx and RX1xx camera housings).

The control buttons feature a 50% increase in spring stiffness, providing superior tactile feedback for precise control. Whether you're into underwater or surf photography, this housing offers enhanced durability, functionality and precision, making it the ideal choice for users seeking to capture stunning images in challenging environments.

The Salted Line CH A7IV GEN2 version features several premium upgrades, 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 sync cable bulkhead. However, it can be purchased separately and installed via an M33 bulkhead interface.

Package Includes

  • Salted Line CH A7IV GEN2 Underwater Housing for Sony A7IV Cameras | 6'' Long Flat Port | Optical Glass | Black ×1
  • Spare O-ring Set ×1
  • Silicone grease (5 ml) ×1
  • Housing body cap ×1
  • Port Neoprene Cover (Front) ×1
  • Port Cap (Back) ×1

Please Note: Camera and lens not included with the housing.

Disclaimer:

Every effort has been made to ensure that the descriptions and images provided are accurate and up-to-date. However, occasional errors may occur, and product features, specifications, or appearances may change without notice. We recommend verifying any details that are critical to your purchasing decision.

Frequently Asked Questions

How deep can it go? +
The Salted Line housing is rated for depths of up to 40 meters (130 feet), ensuring reliable underwater performance.
What dome and flat ports are compatible? +
The housing uses a 90mm bayonet mount, compatible with all Salted Line / Sea Frogs dome and flat ports for that bayonet size.
Does it include a port? +
No port is included. Ports are sold separately.
What O-rings and maintenance is required? +
Inspect and lubricate the O-ring before every dive. Replace O-rings at least once per year or every 50 dives. Use only Salted Line / Sea Frogs silicone grease — third-party greases may cause leaks.
What makes the triple-latch system different? +
The A7IV Gen2 housing uses a triple-sided metal latch locking system, providing three points of secure closure for added reliability.
Can I connect an external monitor or recorder? +
Yes. The housing features an integrated M33 threaded HDMI bulkhead interface for use with external underwater monitors or recorders.
Does it support the Photo/Video/S&Q switch? +
Yes — a dedicated external switch allows you to change between Photo, Video, and S&Q modes without opening the housing.

Specifications

Bayonet:

  • 90mm (3.54'')

Materials:

  • Polycarbonate
  • ABS Plastic
  • Stainless Steel
  • EPDM Rubber

Dimensions:

  • Width: 215mm (8.46'')
  • Height: 165mm (6.5'')
  • Length: 140mm (5.51'')
  • Weight: ±1280g (2.82lb)

Compatible Lenses

Sony Lenses:

Sigma Lenses:

Key Features

  • Detachable shutter grip with two-stage trigger (sold separately)
  • Photo/Video/S&Q switch
  • Vacuum Check System port
  • Inbuilt leak detection sensor
  • Interchangeable port system
  • Integrated M33 threaded bulkhead interface
  • Dual Fiber-Optic port (Sea&Sea type)
  • Two stainless steel mounting plates 1/4" thread
  • The reinforced metallic bottom plate
  • Triple-sided metal latch locking system
  • O-ring sealed buttons with spring

Connect an external strobe with this housing. It will require a fiber-optic cable (purchase here) and a flash trigger (purchase here).

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