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Continue ShoppingSalted Line Underwater Gen 2 Camera Housing for Sony A7IV with 4'' Glass Flat Port
The housing is rated for depths of up to 40 meters (130 feet)
SKU: SLSNA7IVGEN2FP90L4BK- $779.00
Salted Line: Black Underwater Vision
Salted Line CH A7IV GEN2 Underwater Housing for Sony A7IV Cameras | 4'' Long Flat Port | Optical Glass | Black
90mm Bayonet|40m/130ft|M33 Bulkhead|GEN2|4'' Long Flat Port|Optical Glass|Black
The Salted Line CH A7IV GEN2 Housingwith a 4-inch Optical Glass Long 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.
Highlights
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.
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).
FAQ
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.
Specification
Bayonet
- Mount90mm (3.54'')
Materials
- Polycarbonate
- ABS Plastic
- Stainless Steel
- EPDM Rubber
Dimensions (body only)
- Width215mm (8.46'')
- Height165mm (6.5'')
- Length140mm (5.51'')
- Weight±1280g (2.82lb)
- Depth rating40m (130ft)
4'' Long Flat Port
- Length115mm (4.53'')
- Weight±560g (1.23lb)
- Depth rating40m (130ft)
Compatible Lenses
Sony Lenses:
- Sony FE 24-70mm F4 ZA OSS (autofocus, manual zoom gear available) Working range 35mm to 70mm
- Sony FE 90mm F2.8 Macro G OSS (autofocus, manual focus gear available)
Sigma Lenses:
- Sigma 24mm F1.4 DG HSM Art E-Mount (autofocus only) Focus Gear not Available
- Sigma 35mm F1.4 DG DN Art E-Mount (autofocus, manual focus gear available)
Compatible Cameras
Sony Cameras:
- A7IV
Package Includes
- Salted Line CH A7IV GEN2 Underwater Housing for Sony A7IV Cameras | 4'' Long Flat Port | Optical Glass | Black ×1
- Port Cap (Back) ×1
- Spare O-ring Set ×1
- Silicone grease (5 ml) ×1
- Housing body cap ×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.