Overview & Features
A full featured and durable waterproof housing for Sony Alpha A7 IV and A7R V cameras. Suitable for
scuba, snorkel, surf, pool, and any application in or around the water.
About de new Sony Alpha 7 IV Camera
New in 2022, Sony's 4th generation affordable full frame mirrorless camera continues to build on their reputation for high quality image and video quality. A new 33 megapixel BSI-CMOS sensor provides image resolution up to 7008 x 4672.
The improved autofocus tracking system incorporates tracking Eye AF as well as some animal tracking in both still and video modes. Pattern detection, color and brightness variations are also worked into its tracking AF algorithm providing a simple and effective experience.
Unlike its predecessor, the a7 IV is capable of shooting 4K/60p video which is great for underwater work where you want to slow things down in post-production. The increased frame rate does come at a cost of sensor usage, effectively cropping the resulting footage to APS-C dimensions.
Battery life is reduced a little to 580 shots per charge when using the rear LCD (CIPA). This is still a fair bit more than its competitors in the field: the Canon EOS R6 and Nikon Z6 II. All in all the Sony a7 IV is a great camera to shoot underwater with a wide variety of lens options from Sony, Sigma, and Canon (using a Metabones adapter).
A full featured and durable waterproof housing for Sony
Alpha A7R IV Mirrorless cameras.
Suitable for scuba, snorkel, surf, pool, and any application in or
around the water.
Lens Ports
The single most important feature is the new Dry Lock (DL) port
system. This exciting new system is designed to be robust and easy to
assemble. It is built for reliable performance in the most remote of
locations, meaning that their are no complex moving parts that may break
and jeopardize your shoot.
Most popular zoom lenses and select lens
focus rings can be engaged using a simple yet effective gearing system
that puts adjustment right at your fingertips. A large, soft-touch lobed
knob on the side of the housing makes fine tuned adjustments a breeze.
Zoom and focus gears differ depending on which lens you are using. All
are lightweight and affordable. Refer to the DL System Port Chart for
Sony Alpha Series to choose the correct gear. Zoom gears sold
separately.
Confidence
The unique rear
seal design prevents accidental twisting or stretching of the o-ring for
simple and confident assembly. We have eliminated the need for an
o-ring groove or channel which can trap sand, dirt, or debris. Three
double-passivated stainless steel locking lid snaps are simple to use
and virtually unbreakable. The clear back allows you to see the o-ring
form a solid, watertight seal as it closes.
Vacuum System
A vacuum valve is installed standard on the side of the housing.
The vacuum valve is designed to be low profile to avoid interference
with controls. The optional Vacuum Pump with Gauge # 47011 allows you to
draw a vacuum on the housing to check for leaks prior to entering the
water.
Drawing a vacuum on the system also provides extra security at
the surface of the water, especially important when using the housing
in rough surf.
M16 Accessory Port
The spare M16 threaded accessory port provides an attachment point for third party accessories including HDMI bulkheads.
TTL Exposure
This housings supports your choice of shooting with manual strobe
exposure or adding a TTL converter depending on your application. The
flash bulkhead is located on the top of the case to alleviate strain on
the sync cord.
You can enjoy the fastest and most accurate TTL
exposure on the market by adding the DL2 DS Link Sony TTL Converter
Ikelite ST1 Hotshoe Kit # 46042 and a compatible Ikelite DS strobe.
Exposure compensation can be used added or subtracted in the camera.
Ergonomics
Good ergonomics are critical when you need to concentrate on
composition, focus, and proper exposure. Large, curved control levers
put the most important controls right where you need them: shutter and
autofocus (via the AF-ON button). This combination allows you to shoot
with or without back button focus, an advanced technique that is useful
for tack sharp focus of super macro and fast moving subjects. Each lever
can be extended using the optional Trigger Extension # 4077.95 for
perfect spacing when using a right-hand handle.
The rotating controls
are all operated intuitively via premium soft-touch knobs. An
oversized, lobed knob puts the zoom/focus knob at your fingertips while
your left hand stays on the handle. Stainless steel, direct-drive
rotating controls are virtually fail-safe and user serviceable and
adjustable in a pinch.
All rear camera buttons are accessible by
smooth action, hard anodized aluminum push buttons for reliable
performance and easy maintenance. These controls are clearly labeled by
laser engraving on the back of the housing that never fades or falls
off.
Set-Up
The camera mount is front-loading for easy installation and
removal. A small mounting plate attaches to the bottom of the camera and
secures in the front of the housing. The camera mounting plate does not
need to be removed from the camera for surface use or when changing the
battery or memory cards. The mounting plate features a 1/4-20 threaded
mount on the bottom so that it can be attached to a tripod on the
surface.
Viewfinders
The included SuperEye Viewfinder provides an enhanced view of the
camera's optical viewfinder when viewed through a dive mask. The
viewfinder removes quickly and easily for the attachment of an optional
Straight Magnified Viewfinder # 6890 or 45° Magnified Viewfinder (Type
1) # 6891.1.
Handling and Travel
The housing, tray, and handles have been optimized to reduce
weight while maintaining strength and durability. The Right-Hand Quick
Release Handle # 4077.02 (sold separately) can be added or removed
depending on your needs. The precision machined aluminum base features
1/4-20 tripod mounting sockets and additional mounting locations for
future accessories. The base and handle can be quickly removed when
breaking down your system for travel.
A 1/4-20 threaded mounting
point is located front and center on the housing above the lens port
mount. This mount can be used to attach lightweight accessories like a
focus light or GoPro camera.
If you're shooting with two strobe or
lighting arms, then a top handle can be added to carry to and from the
dive site. Top handles are available in a Cable Grip # 4080.07 or
Aluminum Top Handle # 4080.08. The rigid aluminum version provides
additional mounting points for lighting and accessories.
Adding a
dedicated focus light to your top mount or strobe arm is highly
recommended for more accurate autofocus in low light settings.
Durability and Corrosion-Free Performance
Our white ABS-PC blend housing provides strength and
corrosion-free performance year with minimal maintenance. ABS-PC is
lighter than aluminum for convenience during travel and less drag
underwater. The specially formulated color deflects the sun to keep your
camera running cooler, longer. Compared to black or clear housings, the
light color provides superior contrast for enhanced view of the camera,
LCD screen, and o-ring seal.
