Showing posts with label FAQ. Show all posts
Showing posts with label FAQ. Show all posts

Friday, 26 June 2009

Repairing an ewa-marine housing.

Front Port:

If the front port is scratch or otherwise damaged, we will have to replace it for you. As this involves special equipment in all current housings, it will have to be sent in to the factory. A DIY repair, and be it temporary isn't possible


Missing parts or missing or damaged closing rail:

Check with your local distributor or the factory in Germany. We can send you the spare parts you need.


Housing / pouch:

In most cases we are able to repair any damage of the plastic housing caused by wear and tear as well as force. (alas, no repair will be possible, if an attempt has been made to glue the housing. Glue damages the molecular structure irreversibly. In case of an emergency only the use of silicon-glue may be used to seal the housing provisionally) Please send the damaged housing to the following address with a note explaining the problem.


Sending the housing to the factory:

In case of shipments from outside the EU, mark the parcel "damaged goods for repair by manufacturer" and state a value of US$ 1,-- or Euro 1,-- for custom purposes. If you insist on declaring the price you paid for the unit when you bought it, we will have to pay a non refundable customs duty of around 30,- Euro / US$. Money wasted, as a leaking under water housing is of no use and therefore worthless in every meaning of the word (practically and therefore also commercially)


Also include payment for the return shipment or your UPS, DHL or FedEx customer account number


ewa-marine GmbH
Kundendienst
Blumenstr. 17
D- 82538 Geretsried
GERMANY

Please test the housing about 4-6 weeks prior to that dream holiday. That way, should damage have occurred since you last used your housing, we will be able to receive your housing, repair it and return it before you leave.

And, PLEASE, don't forget to give us you e-mail, phone, Skype or return address?

Wednesday, 17 June 2009

Flexible housings: What's that ? And how does it realy work?

 flexible camera housings and how they work

The biggest safety feature of a flexible ewa-marine housing is the fact that the air pressure inside the housing is always the same as the water pressure outside. As a result, there is no undue stress on any seal and no risk of an implosion. We are also able to use a thinner front port then comparable hard housings, thus reducing the otherwise resulting quality losses in the pictures.

The relationship between volume and pressure is described by the law of physics according to Boyle-Mariotte:

pressure x volume = constant

We have designed the housings with this in mind and have left enough air around the camera in an inflated housing for you to reach the depth we tested ourselves. The foam padding and valves supplied with selected housings help to ensure that the maximum amount of air can be included in the housing while allowing access to all the relevant controls.

Nevertheless, the volume is also the factor that determines the buoyancy. For that reason it might be preferable to reduce the amount of air in the housing for snorkeling. Also please keep in mind, that the housing will be very buoyant at the surface, but as you descend and the volume decreases, it will even develop a negative buoyancy (start to sink) with some heavier cameras or camcorders.

When you have reach the tested depth, all the air will have been pressed inside the camera or camcorder itself. If you continue your descent, the pressure sensitive parts will be affected first and at a very small pressure difference (shutter release, power, etc.), thus causing a malfunction of your camera or camcorder. Stop the descent immediately, return to a safe depth, and all will return to normal.
PLEASE NOTE:
There is a groove at the rear of the closing rail. As you submerge the housing bubbles will escape from this grove. This should last for about 1/2 Minute and before coming to an end. This phenomena is normal and has nothing to do with whether the housing is waterproof or not.