Underwater housing Sea&Sea for Sony a7 IV

Underwater housing Sea&Sea for Sony a7 IV

Universal compatibility with Sony Alpha series. The future-oriented mirrorless SLR compatible housing is now fully loaded.

Lens port required

A compatible lens port is required for waterproof operation (sold separately). Choose the correct port components on the lens you will be shooting. We have an extensive stock of Sea&Sea ports for creative solutions.
Link to SEA& SEA PORT CHARTS

FEATURES

Universal design for the future - The back panel is designed to be large

The back acrylic panel is more than twice as large as before to improve visibility of the monitor and reduce the underwater weight.
Furthermore, it is a sustainable design that can be used with new cameras in the future with minimal parts replacement.

Newly designed fiber-optic cable cover

Newly designed fiber-optic cable cover included. Prevents optical cable terminals from falling out and smartly protects light-emitting panels and cable terminals. Includes a strap to prevent loss of the cover.

Leak Alarm Unit as standard equipment

The Leak Alarm Unit, which was previously available as an option, is now included as standard equipment.
It is effective not only for early detection of underwater flooding accidents, but also for protection of equipment by checking its waterproof performance before entry. CR2032 lithium battery included.

Download Leak Alarm Unit Mode Change Instructions

Strobe Synchro System

Three optional strobe connection methods are available.

1.Optical TTL connection
[Product No.50151] Optical YS Converter S2
Compatible with SEA&SEA “Optical YS Converter S1” which converts the strobe light emission signal of the camera to LED light and synchronizes with the SEA&SEA YS strobe. It is a high-performance converter that does not just emit simple light-emitting signals, but also performs TTL auto light control. * The Sony original adapter "ADP-MAA" is no longer required for connection to the camera.

2.Optical manual connection
[Product No.50146] Manual flash trigger
For those who do not need TTL photography, the fiber-optic cable connection enables manual firing of the YS strobe.

3.Electrical connection
[Product No.50147] Strobe connector/N
[Product No.50122] Optional Sync Cord 2-pin Connector
YS strobes can be electrically connected with a sync cord.

Full range of standard equipment

Grip Plus made of silicone material. Robust yet secure fit to hold the housing in place. Lighting can be deployed as desired from the SA8 fixed ball base. Pre-equipped with lanyard hooks for convenient transportation.

Focus Point Movement Settings

To perform "focus point operation" during shooting, please make a custom setting for the focus point in the dial customization of the camera in advance. The focus point can be moved by operating the front/rear dial.

Enhancement Customization Kit

The shooting mode lever cannot be used.
This can be handled by using an optional kit.
S&Q cannot be used.

[Product No.50150] α7IV Customize Kit for MDX-αU
Compatible with still image/movie/S&Q switching lever.
*The α7IV customize kit cannot be used with an electrically connected strobe sync system.

OTHER FEATURES

• The Port Lock prevents the port from turning or loosening and the Port Lock lever is specifically located to avoid being unlocked accidentally.
• The housing is equipped with a lens-lock release button which makes it possible to change lenses easily, without opening the housing.
• Pulling out the Focus/Zoom Dial gives sufficient room inside the housing to easily accommodate larger diameter lenses.
• All controls have luminescence stickers which glow in dark environment.
• Equipped with the Optical Viewfinder 0.5x as standard. Other optional viewfinders such as the VF180 1.2x, VF45 1.2x and Optical. Viewfinder 0.66x, 0.8x can be used. ※ Some vignetting occurs.When the VF180 1.2x is mounted on housing, the uper part of the camera's viewfinder cannot be viewed due to vignetting.
• Equipped with two sacrificial zinc diodes (one on the front case and the other on the rear) to prevent electrolysis damage.
• Tripod screw mount is located on the centre underside of the housing.
• Equipped with under guard to protect from scrach.

Specifications

[Construction]
Body: corrosion-resistant aluminum alloy (machined)
Grip: corrosion-resistant die-cast aluminum alloy
[Depth rating] 100m / 330ft
[Dimensions (WxHxD)] 330 x 169 x 137 mm / 12.9 x 6.6 x 5.4 inches
[Weight] Approx. 2,900g / 102.3oz (Housing only)

Set Items

Silicone grease, O-ring remover, Hex wrench (6mm / for grip dismounting), Hex wrench (4mm / for Lanyard bolt), Hex wrench (2mm), O-ring maintenance manual, Instruction manual (this manual), CR2032 lithium battery (for leak alarm unit), Leak alarm unit manual pump.

Attached accessories to the product

Housing body cap, Fiber-optic cable cover