Ikelite 71474 200DL Underwater Housing for Sony Alpha a7R IV Mirrorless Digital Cameras
The Ikelite 71474 200DL Underwater Housing is a full featured and durable waterproof housing for Sony Alpha a7R IV full frame mirrorless digital cameras. Suitable for scuba, snorkel, surf, pool, and any application in or around the water.
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.
This housing requires the addition of a compatible DL Lens Port for waterproof operation. Lens Port not included.
This housing features the robust Dry Lock (DL) port system. “Dry Lock” refers to the placement of the o-ring on the outside of the port mount. This improves visibility and reduces the chances of water dropping onto your precious camera sensor. DL ports are the lightest on the market, yet robust and capable of standing up to rough surf. Attachment is quick and secure. A system of extensions can accommodate a huge variety of lenses with ease.
Most popular zoom lenses and select lens focus rings can be engaged using simple gearing that puts adjustment right at your fingertips. A large, soft-touch 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. Zoom gears sold separately.
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.
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.
Any Ikelite DS strobe may be used in manual exposure modes by attaching one or two with a compatible electrical sync cord. Current model DS strobes may be used in TTL exposure mode by adding the optional DL2 DS Link TTL Converter and an electrical sync cord.
SEA&SEA, INON, and Retra strobes with an electrical connection can be triggered in manual exposure modes using an electrical sync cord. Strobes without an electrical sync cord connection cannot be attached to this system unless slaved off of a hard-wired strobe.
Older non-digital strobes featuring an ICS-5 electrical sync cord bulkhead can be used with this system in manual exposure modes.
Fiber optic only strobes are not compatible with this installation. An external strobe must be connected by electrical sync cord.
Strobes with remote slave capabilities may be triggered off of a flash attached to the housing by electrical sync cord. Ikelite DS strobes support remote triggering using the Optical Slave Converter # 4405 or the Water Wizard system (manufactured and sold by Aquatica).
The 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.
In the Box: Housing, Rear O-ring # 0132.59 (installed), Front O-ring # 0132.45 (installed), Zoom Gear Retainer # 75900 (installed), Port Hole Cover # 0200.92 (installed), Waterproof Bulkhead Cap # 9104.7 (installed), Base with Left-Hand Quick Release Handle # 4077.67 (installed), Tool for Zoom Gear Retainer # 0945.06, .050″ Hex Key # 0945.11, 1/16″ Hex Key # 0945.16, Silicone Lubricant 1cc Tube
- 200′ (60m) depth rating
- Compatible with DL system lens ports
- Controls are provided for all camera functions except: Diopter adjustment, Control wheel, Joystick up/down/left/right (Joystick can be depressed); Control wheel functions may be accessed using the Front and Rear Dials
- 1/4-20 thread base mounts with 3.5″ spacing
- Slightly positive buoyancy in fresh water
- Actual buoyancy varies depending on choice of lens and port
- Weight Housing 4.67 lb (2121 g)
- Weight Tray with left handle 11 oz (312 g)
- dimensions 9 x 7.25 x 6″ (229 x 184 x 152 mm) Not including
- Vacuum valve included (pump sold separately)
- Included Ikelite ICS-5 bulkhead connector with manual hotshoe for reliable electrical triggering of underwater strobes; Optional TTL accessories provides automatic exposure with compatible Ikelite DS strobes
- ABS-PC construction is fundamentally corrosion-resistant
This Ikelite 71474 200DL Underwater Housing for Sony Alpha a7R IV is only compatible with Sony Alpha a7R IV cameras as shipped by the manufacturer. Unless otherwise noted, this housing does not accommodate the use of add-on grips, battery grips, eyepieces, LCD covers, or other accessories.
Differences in lens and control placement prevent other Sony camera models from being used in or adapted to this housing. We are not aware of any other models which may be used in or adapted to this particular housing.
Compared to previous models, Sony gave the IV a much deeper grip and redesigned and repositioned the controls for better topside ergonomics. These changes prevent the IV from operating in housings made for earlier models.