Ewa-Marine U-A100 housing

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Ewa-Marine U-A100 housing

Ex. VAT: £187.49 Inc. VAT: £224.99

flexible SLR housing
Does not include camera

Accomodates small bodied SLR cameras with lenses with up to 82mm threads.



The U-A100 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 most common, current application is in video production. And to then use this housing with a Sony A7, an adapter like the Metabones and one of the large diameter Canon lenses.

The U-A100 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.

Keep in mind: If you do not have one of those large diameter lenses, the "standard" U-A will be the better choice. And if you do ever end up needing the larger front port, then the SF100 port can always be fitted by our customer service at some point in the future.

Additional Information

Additional Information

Universal housing finder Canon EOS 1000D, Canon EOS 100D, Canon EOS 10D, Canon EOS 1100D, Canon EOS 1200D, Canon EOS 1300D, Canon EOS 20D, Canon EOS 300D, Canon EOS 30D, Canon EOS 400D, Canon EOS 40D, Canon EOS 500D, Canon EOS 50D, Canon EOS 550D, Canon EOS 600D, Canon EOS 60D, Canon EOS 650D, Canon EOS 700D, Canon EOS 750D, Canon EOS 760D, Nikon D100, Nikon D200, Nikon D3000, Nikon D3100, Nikon D3200, Nikon D40, Nikon D40X, Nikon D50, Nikon D5000, Nikon D5100, Nikon D5200, Nikon D5300, Nikon D5500, Nikon D60, Nikon D70, Nikon D80, Nikon D90, Nikon DF, Olympus OM-D E-M1, Olympus OM-D E-M10, Olympus OM-D E-M5 Mk II, Pentax 2000, Pentax 200D, Pentax ist*D, Pentax ist*DL, Pentax ist*DL2, Pentax K-m, Pentax K100D, Pentax K10D, Pentax K110D, Pentax K20D
Depth Rating 20m
Port diameter 95mm
Max filter diameter 82mm
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.
Notes The U-A100 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-A100
SKU/EAN 4035144004443
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 aim to help the environment.

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

  • CA77 adapter 
  • sachet of Camera-Dry silica-gel CD-5
  • foam padding (can be removed to accommodate battery grip or weights)
Application and Alternative Products

The U-A100 is a practical, "all-round" housing that is primarily intended to 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-A100 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.

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

U-A: for consumer style SLR for up to to 20m / 60ft dive depth. Ideal if your largest lens diameter is smaller than a 72mm filter thread.
U-AX: SLR with top mounted strobe for up to to 20m / 60ft dive depth. Offers better illumination of the subject under poor light condition.
U AXP100: SLR with top mounted strobe and up to to 50m / 150ft dive depth. Primarily for scuba diving.
U-AZ: For out-door photography while canoeing or kayaking with long zoom lenses

Fits the Following Cameras

EOS 10D 20D 20Da 30D 40D 50D
EOS 100D 300D 350D 400D 450D 500D 550D 600D 650D 700D 750D 760D
EOS 1000D 1100D 1200D 1300D
Digital Rebel XT XTi XSi T1i T2i T3i T4i T5i T6i T6s SL1 XS T3T5
Kiss N X X2 X3 X4 X5 X6i X7i X8i F X50 X70
analog EOS: 1N 3 5 10 30 50 100 300 500 600 620 630 650 700 750 850 888 3000 5000 IX RT Elan

D3000 D3100 D3200 D3300 D3400
D5000 D5200 D5300 D5500
D7100 D7200
D40 D40x D50 D60 D610
D70 D70s D80 D90
F100 F401 F401S F401X F50 F501 F55 F60 F601 F65 F70 F75 F80 F801 F801S
N2020 N4004 N4004S N401X N50 N55 N60 N601 N65 N70 N75 N80 N801 N801S
Nikon DF
Pronea 6i 600i S

S100FS S200EXR S205EXR S4000 S8100 S9500 S9600
X-T1 X-S1 X-T2

EasyShare Z710

Konica / Minolta
Alpha Series
Dynax 5D
Dynax Series
Maxxum Series

E-300 E-330 E-400 E-410 E-420 E-450 E-500 E-510 E-520 E-620
OM-D E-M5 E-M5 Mark II
OM-D E-M1 OM-D E-M10
OM-101 OM-707 OM-77 OM-88

Panasonic Lumix
DMC-G1 G2 G3 G5 G6 G7 G10 G70 G81

*istDL *istDL2 *istDs
K-3 K-3II K-m K-r K-x
K100D K10D K110D K2000 K2000 K200D K20D K500

GX-1L 1S 20
NX1 NX5 NX10 NX11 NX20

SA-7 SA-9

A7 (all versions)
α7 α7R α7S α7RII
Alpha 560
Alpha A100 A200 A230 A290 A300 A330 A350 A380 A390
SLT-A33 A35 A37 A55 A57 A58 A65 A77 A99

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