Ewa-Marine U-A housing

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Ewa-Marine U-A housing

Ex. VAT: £162.49 Inc. VAT: £194.99

Underwater housing for compact, consumer SLR cameras.
This is a flexible SLR housing
Does not include camera
Ewa-Marine U-A



The U-A SLR underwater housing can be used on small boats, in the surf, while swimming, snorkeling or diving. It`s easy to operate the camera as its various components and buttons can be operated through the PVC.

The U-A is designed to fit almost all common SLR cameras on the market today, irrespective of the manufacturer or model. With this housing, a whole new world of applications opens up for your standard SLR camera: Inside the housing you can now take the camera safely canoeing, snorkeling or even diving, up to a depth of 20 m / 60 ft.

If the optional BF1 lead weight is inserted into the housing, underneath the camera, it becomes even easier to reach the maximum depth. Experienced photographers have confirmed, that the auto focus and flash both continue to function perfectly. As you descend, the air is pressed into the camera. Due to this, the pressure inside the housing will remain the same as the surrounding water pressure. (this is the reason why ewa-marine housings are so safe to use: implosions are impossible) Due to this, we have to start the dive with a suitable amount of air inside the housing. The foam pads supplied with the housing are part of this air "reservoir" and additional air should also be blown into the housing, via the valve at the rear, to ensure that the maximum potential volume is being utilized.

This is only one of a range of underwater SLR housings by ewa-marine.

Please also note, that the U-A only accepts lenses with a filter diameter of up to a maximum of 72mm. If you are using a lens with 82mm or 77mm filter diameter, then you would have to get our U-A100. Basically the same housing, the only difference being the larger front port and adapters. 

Additional Information

Additional Information

Universal housing finder Canon EOS 20D, Canon EOS 300D, Canon EOS 30D, Canon EOS 400D, Canon EOS 40D, Canon EOS 500D, Canon EOS 50D, Canon EOS 550D
Depth Rating 20m
Port diameter 75mm
Max filter diameter 72mm
Controls Buttons are mostly usable, switches and dials are sometimes not possible to control through the housing. This varies with different camera models.
Sync Connection None. Custom connections may be possible from manufacturer. Please contact us for details.
Mounting Options Only the straps can be used for mounting the housing. Customised housings fitted with tripod sockets can be manufactured, please contact us for details.
Supplied Accessories Carrying case, initial supply of silica gel (CD5), foam padding, C-A62 filter-ring adapter (direct fitting for lenses with 62mm thread) + step rings for lenses with 52, 55, and 58mm threads.
Construction Control operation is by pressing through the housing material (dials and wheels can be used, but can sometimes be difficult to operate). Lenses are held close to the port with adapter rings that screw into the filter thread of the lens. At least one adapt
Notes The U-A will take an SLR with a width of up to 140mm, with or without a Battery grip. The distance from the back of the camera to the front of the lens can be no more than 170mm.
Material Double-laminated PVC with welded seams. Flat optical glass port. Metal clamping rails seal the housing with no need for O-rings.
Product Weight 380g
Width 170mm
Height 135mm
Depth 170mm
Part Number U-A
SKU/EAN 4035144001107
Application and alternative Products

The U-A is a practical, "all-round" housing that is primarily intended the be used while swimming, snorkeling and other, general water sports. While it can also be used for scuba diving, for lack of a strong, external strobe, and because the camera's small, built in flash is to close to the lens, resulting in small, suspended particles in the water showing as "snowflakes" in the picture, i.e. can not be used in most applications, the U-A is limited to 20m / 60ft. A depth where you also can still take pictures with ambient, natural light. Since underwater photography generally requires the use of wide angle or macro lenses and thus shorter lenses, the lens tubes on the housing is kept rather short.
The U-A is also our most cost-effective dSLR underwater housing in the ewa-marine SLR range.

Depending on your application but the following products offer a better solution:

U-AX: SLR with top mounted strobe for up to to 20m / 60ft dive depth. Offers better better illumination of the subject under poor light condition.
U AXP: SLR with top mounted strobe and up to to 50m / 150ft dive depth. Primarily for for scuba diving.
U-AZ: For outdoor photography while canoeing or kayaking with long zoom lenses

Product Information and Technical Details

Designed specifically for consumer style digital dSLR, large mirrorless system-camera as well as the "old style" analog 35mm SLR cameras, the ewa-marine U-A underwater housing is manufactured from our special, double laminated PVC and has an integrated, optically neutral flat glass as a front port. With this housing you will receive a set of adapters that fit the filter threads of the most popular lenses on the market today. By means of this adapter the camera is then docked into the housings front port, ensuring that the lens remains parallel and centered behind the front of the lens. Just as if it were a clear, neutral optical filter.

As many cameras in this category have a built in, pop-up flash we have added a "roof" to accommodate it in the housing. To fix the right hand near the shutter release, the housing has an adjustable wrist strap and a "Finger" to position the index finger right on the trigger.

It has a pair of non-corrosive and seawater resistant clamping rails which fit together for perfect sealing.They tighten by means of three screw knobs. There is also the practical, adjustable carry strap on the clamping rail.

It is supplied in a handy yellow storage and carrying case.


Overall maximum width of camera 170 mm max. (6 2/3 inches)
Length of camera PLUS lens  170 mm max. (6 2/3 inches)
Housing height 135mm (5 1/3 inches)
Max. filter diameter 72 mm (2 14/16 inches)
Weight 380g, 13.5oz.
What's in the Box

Actually, it's not in a box at all. We sell this unit in a handy, yellow, nylon carry bag. This bag is ideal to store and transport your ewa-marine housing, it also helps reduce unnecessary packaging-waste and as such is part of our amain to help the environment.

In Addition to your housing and closing rail you will get the following with your new ewa-marine:

CA-Adapters(for 52mm, 55mm, 58mm and 62mm Filter thread)
sachet of Camera-Dry silica-gel
foam padding (can be removed to accommodate battery grip or weights)

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