Canon 10BAR 450D User Manual

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Camera Housing – Model 450D (Canon)

User Manual


1. Introduction

2. Specifications

3. Function Controls

4. Set up Instructions

5. Use & Care of Housing

6. Service

7. Warranty

1. Introduction

10BAR Underwater Housings are small, light and rugged enough to be used on every dive. Use of a clear polycarbonate allows for visual inspection of camera condition and the O-ringseal. 10BAR Housings are designed for the ever-increasingvariety of models of digital still and video cameras. Advanced computer aided design and CNC manufacturing technologies ensure precise dimensions. Each housing body is first injection molded, and then machined to configure to individual camera model. A range of lens ports and controls are fitted, to tailor the housing to your camera model.

2. Specifications 450D

Test Pressure

Housings are individually tested to 10 Bar (90 m / 300 ft.) Recommended

working pressure 60 m.


Closure Design

O-ring,Air Lock

Body Material


Overall Size

200 x 300 x 230 mm (LxWxH)

Total Weight

Approximately 2.6 Kg (Housing only)

Buoyancy (with camera)

Approximately neutral in salt water


Visible main O-ringfor finalpre-divecheck


Double O-ringdesign on all controls

Bulkhead and hot shoe plug for External 580-EXe-TTLstrobe


Standard Zoom Port18~55mm Lens




450D Opening key / Lever


Silicone O-ringgrease


Spare main O-ring


Carrying bag


Cleaning Kit




Semi-DomePort for 10~22mm Lens

Optional accessories

580-EXe-TTLFlashlight Housing

Flex Arm




Synchronous Cord



3. Function Controls 450D

1.ISO speedset

2.Mode Dial / Power switch

3.Flashlight syn bulkhead


5.Main Dial


7.Pressure release plug

8.Menu / DISP.

9.(AE/FE Lock/Index/Reduce) / (AF point selection / Magnify)

10.Aperture / Exposure compensation

11.Print / Share / White balance selsction

12.Cross keys- (Metering mode) / (Picture Style selection) / (Drive Mode selection) /

(AF mode selection)





4. Set up Instructions

4.1 Air Lock:

The body and lid are designed with the Air Lock system no clipclosure arrangement. Testing has shown that this arrangement allow the water to exert an even pressure on theO-ring,increasing the reliability of the watertight seal.

4.2 Pressure release plug

To open the housing, the pressure release plug must be first unscrewed and then pulled out all the way (Counter-clockwise)(Fig 1). This provides a passage for the air to pass though and eliminate the pressure different between the inside of the housing and the ambient. The plug onsists of an internal doubleO-ringseal on the stainless steel slide shaft.

These internal O-ringsform the watertight seal. There is also a large outerO-ringunder the knob. ThisO-ringserves to prevent contamination of the slide shaft, with dirt, salt etc., and is not required for watertight integrity. If thisO-ringshould become detached, it can simply be pushed back in place.

4.3 Opening levers

After unscrewing and pulling out the pressure release plug, the lid can be opened. To overcome the friction of opening, use lever (Fig. 2) to push against the lid with a cam action. Be sure they are inserted all the way flat to the housing before turning to avoid damaging the protrusions on the lid. The body has four holes on each corner edges for opening. Gently lever off the lid with the supplied opening lever (Fig. 3) taking care not to twist the lid excessively. The lid should be opened keeping it approximately paralleled to the body at all times, turn first one corner a little, then the other a little, and repeat again until the lid is opened. Remember to unscrew and pull out the pressure release plug all the way first, otherwise the air pressure will resist attempts at opening. Lay the lid on a flat stable surface after opening.


4.4 Special note on responsibility for watertight integrity:

Each housing is individually inspected and hydrostatically tested in the factory. The design of the main piston O-ringseal is among the most reliable in the industry and the watertight integrity is excellent. This specialO-ringdesign provides a perfect seal even if there is any movement between the body and lid due to change of ambient pressure. However please note that responsibility for ensuring the integrity of the watertight seal lies entirely with the user. 10 BAR accepts no liability for damage to, or loss of any equipment used with, or placed inside the housing. Users are highly recommended to carry outin-watertest of the housings without installing of the camera for their first dive after change of new ports or alternation of any new configuration. The test can be carried out by lowering the housing with ballast to the working depth or dive down to the safe diving range.

The O-ringseal is the only barrier between the water outside and the air space within the camera. It is an effective barrier only if the seal is properly maintained. TheO-ringseal should be inspected before every dive. The following information is provided for your guidance in using and maintaining theO-ringseal.

4.5 Maintaining the O-ringSeal:

If the main body to lid O-ringis not installed, install theO-ringbefore diving. This is the only user serviceableO-ring.Its care and maintenance is critical to the watertight integrity of the housing. TheO-ringshould be replaced at the service interval (see section on service). If theO-ringis contaminated, or not already installed, inspect grease and install theO-ringaccording to the following guidelines.

4.6 Inspection, cleaning and re-instillationof theO-ring:


A soft cotton bud or sponge applicator, make sure these are free of all chemicals or contamination such as loose fibers, and the tube of silicone grease supplied with the housing are required. Note other types of silicone grease specifically for use with underwater camera equipment can usually also be used. It is advised to carry out the following procedure on a firm clean level surface, (e.g. at a table), to prevent skidding especially useful to have when diving from a boat.

When to maintain the O-ringseal:

Remove the O-ringperiodically for inspection. It is not necessary to remove, clean andre-installtheO-ringafter every dive provided theO-ringdid not become contaminated. As a rule of thumb set up the camera and housing before a days diving. If the housing is required to be opened between dives for changing memory card orre-chargingbatteries, make sure the outside of the housing is thoroughly toweled dry before opening up. After removing the lid and servicing the camera, replace the lid straight away, rather than leaving it lying around. Before replacing the lid, make sure that no


contamination such as dust, hair, salt, sand etc. has fallen onto the O-ringorO-ringrecess, as a precaution we recommend to inspect theO-ringevery time the lid is opened and to carry out the maintenance if necessary.


Place the lid on a firm non-sliplevel surface.

The O-ringcan be extracted using anO-ringextractor tool (make sure the tool as no sharp edges). Alternatively use the flat s of the thumbs to gently stretch theO-ringon two faces (Fig. 4) thus making a small loop protruding a few mm. The loop can then be grasped between finger and thumb, to pull theO-ringover the lip.

Clean the O-ringrecess (the square groove where theO-ringsits) with a cotton bud.

Inspect the O-ringall the way round its surface for damage such as cuts tears or contamination. This should be done visually and also by feeling the surface texture between finger and thumb.

IF THE O-RING IS DAMAGED OR SUSPECTED OF BEING DAMAGED, DISCARD IT IMMEDIATELY. A spare O-ringis supplied with your housing, or a replacementO-ringcan be obtained from 10 BAR. If theO-ringis contaminated or suspected of being contaminated, clean it with a cotton cloth that is free of all

chemicals or contamination. After cleaning inspect the O-ringagain.

Once the O-ringhas been inspected and verified fit for use, apply aSMALL amount of silicone grease to theO-ring.The silicone grease must be evenly distributed round theO-ring

Replace the O-ringinto the groove; run a finger round theO-ring,to make sure it is snugly seated in the groove.


4.7 Mounting the flashlight in the housing

Remove the lens cap and wrist strap. The pressure release plug should be pulled out before inserting the camera. Attach the plastic slide tray to the camera¡s tripod mounting fixture with a coin, screwdriver or the end of the universal tool supplied (Fig. 5). Take care not to excessively tighten the screw. Slide the camera into the body along the guide rail (Fig. 6). Make sure the camera body reach the limit and test the function of the on/of button on the body of the housing. Slide the hot shoe plug into the hot shoe (Fig. 7) Note: If you find that the buttons do not align properly with the controls, please check again that the camera is properly seated to the limit of the guide rail.

Replace the lid (Fig. 8). Remember to ensure the pressure release plug is pulled all the way out while closing, otherwise the air cannot escape. Squeeze the lid closed all the way with the hissing of expelled air. Screw home (CLOCKWISE) the pressure release plug (Fig. 9). There is no need to excessively tighten this plug. The seal is made by internal O-rings.TheO-ringon the underside of the plug is just to keep out dirt.

After replacing the lid, make a final visual inspection of the main O-ringfor contamination (Fig. 10).

Note: If the O-ringis in good contact, a thin black line, about0.5-1mmin width should be visible, where theO-ringis in contact with the lid. Follow this line all the way round the edge of the seal, as a final check that the seal is good. The housing is now ready for the dive.

Important !!! Before diving, make sure the pressure

release plug is pushed back inside and then screwed home, do not over tighten this plug (finger tight only).


5. Use & Care of Housing:

5.1 Pre Dive Function Check.

Just before entering the water, make a habit of reviewing the proper steps to close the housing and connect the bulkhead. Make a visual check of the O-ringseal. It is also useful to switch on the camera, and check that controls e.g. on/off, zoom, shutter functions operate normally.

Check housing is closed

Check O-ringis in the groove between housing and Acrylic

Check battery and memory card status on the LCD display

Check control knob and zoom function

Check the Bulkhead is properly connected or blanked.

Always avoid submerging the housing in hot water for a prolonged time or a cleansing tank where the water may be heated up by the sun.

5.2 General Operation.

The control levers and push buttons consist of internal double O-ringseals on astainless steel shaft. This arrangement is very reliable, however as a precaution, when operating the controls, avoid excessively rapid movements, as this may distort theO-ring.Also please allow for the fact that the camera takes a few seconds to power on. If the camera does not appear to respond to a control action, make sure that no other controls are pressing on the camera, i.e. locking out further actions.

Wear the wrist strap; it is easy to inadvertently let go of the housing, especially if you are distracted.

5.3 Cleaning & Storage.

The body & lid of the housing are made of 6061 Aluminum and Acrylic respectively. 6061 Aluminum is selected for its outstanding strength stiffness, hardness and toughness, While Acrylic for its crystal clear transparency and high gloss surface. Both of them have good resistance to weathering, although long-termexposure to sunlight should be avoided. Normal operating temperature range is 3°C to 36°C (Storage temperature:-10°Cto 50°C)

It is good practice to rinse off your housing with fresh water after every dive. Avoid to exposure to fine sand. After a series of 10 or more dives, e.g. after a dive holiday, it is recommended to immerse the housing for 2-3hours in warm water to dissolve any salt deposits that may have built up. No chemical cleaners should be used.

Important!!! For long term storage please remove the main closureo-ringsfrom body.


5.4 Transportation.

Please protect the housing during transportation. It is recommended to remove the handle, and shutter extension, and wrap the camera in foam or bubble wrap.

5.5 Accidents.

The impact resistance of the housing is excellent. However after an accident the alignment of the housing may have been altered. Therefore in the event of your housing suffering an impact force, e.g. being dropped, it is essential that you do not use the housing for diving. Please return the housing immediately for service and put a note inside to indicate the nature of the accident, so that the severity can be assessed.

6. Service

To ensure the continued performance of your housing, it should be serviced every year, or after every 200 dives whichever is earlier. Please note the terms for servicing the housing posted at our website. A full service will include:

Inspect all components for wears or damage (report if repair necessary),

Clean all sealing surfaces,

Replace all O-ringseals,

Hydrostatic pressure test to 10 Bar.

Note: Replacement of damaged components may require additional cost.

7. Warranty

The warranty is valid within two years from the date of first purchase. The warranty applies only to the housing itself. 10BAR does not accept any liability either implicit or otherwise for

any equipment housed inside, or used together with the housing. In the event of the

housing flooding within the period of warranty, 10BAR will repair or replace the housing. Please note that disassembly of the housing will invalidate warranty. Please fill in the information below, and return a copy to 10Bar Underwater Housing at the address below, to validate the warranty.


(Copy to be retained by user)

Housing Type


Date of Purchase

Serial Number :


Dealer :

(Labelled inside






Owner’s Name :


E-mail :



Tel :






Fax :




Office & Showroom:

Unit C, 2/F., Wing Hin Factory Building, 31-33Ng Fong St.,

San Po Kong, Hong Kong.

Tel: (852) 2573 3228 Fax: (852) 2811 9180.

Email: Web site:

Please keep this document for future reference

(Note: due to continuous improvement the latest model housing may differ slightly form those described in this document)

(Copy to be returned to 10 Bar Underwater Housings)