Sea & Sea MDX-7D User manual

UNDERWATER HOUSING for
Canon EOS 7D
MDX-7D
日本語 English
取扱説明書
Instruction Manual
06152

E-1
Note:
Pressure-resistance inspection sticker
Products bearing this sticker are those that have passed SEA&SEA’s
criteria-based inspection for pressure resistance.
Introduction
Contents
Thank you for purchasing SEA&SEA products.
Please read this instruction manual carefully prior to using this product.
Only with a thorough understanding of this manual’s content will you be
able to use the housing correctly. After reading the manual, please be sure
to keep it in a place where you can easily come back to it at any time.
Safety Precautions .................................................................... E-2
Precautions on Handling the O-ring .......................................... E-4
Accessories .............................................................................. E-6
Identification of Parts ................................................................ E-7
Leak sensor ........................................................................ E-8
Finder .................................................................................. E-9
Preparation for Setting Up ...................................................... E-10
Prepare the housing and port ............................................ E-10
Prepare the digital camera ................................................ E-10
Prepare the connecting accessories ................................. E-10
Opening and Closing the Housing .......................................... E-11
Attaching and Detaching the Port ........................................... E-13
Mounting the Camera in the Housing ..................................... E-15
With the sync cord/the YS converter................................ E-15
With the fiber-optic cable ................................................... E-18
Connecting the Strobe ............................................................ E-20
With the sync cord/the YS converter................................ E-20
With the fiber-optic cable.................................................... E-23
External Controls ....................................................................E-24
Attaching the Optional Accessories ........................................E-27
Maintenance and Storage .......................................................E-28
Specifications ..........................................................................E-29

E-2
WARNING
CAUTION
Safety Precautions
WARNING Situations that could result in severe injury or death.
CAUTION Situations that could result in property damage or
personal injury.
Carefully observe the instruction manual for the compatible camera for this product
before use.
This product must be used in combination with the optional port for SEA&SEA digital
SLR camera housings. This product cannot be used alone.
This product has been designed and manufactured for use at a water depth within
60m / 200ft. Please note that diving to a depth in excess of 60m / 200ft may cause
damage to the product or may lead to water leakage.
Unauthorized disassembling and/or modification could result in malfunction or flooding,
and void product warranty. Take the product to a SEA&SEA authorized service
center for repair or inspection.
Should you notice smoke or an unusual smell coming from the product, turn it off and
remove the batteries immediately, taking care to avoid burns. Continued operation
could result in injury. After removing the battery, take the product to a SEA&SEA
authorized service center for inspection.
Discontinue use and turn the product off immediately should you notice flooding or
leakage.
When the product is flooding, interior pressure may build up. Please be careful when
opening the product as water may spurt out or the cap may open explosively and
cause injuries.
The product has been constructed with an airtight seal. When packing the product
for airplane travel, do not seal-up the product to alleviate pressure build up due to
atmospheric changes.
Do not open the product in a wet or sandy environment. Protect the interior from
moisture and debris in order to prevent malfunction or flooding.
Avoid strong shocks/impacts or excess stress to prevent malfunction, damage or
breakdown. Make sure that the product has been securely mounted to other products
in order to prevent injury, fall or missing.
Keep out of reach of children to prevent accidental ingestion. If swallowed, seek
medical advice immediately.
Failure to heed the precautions listed below could result in serious
consequences. To prevent injury or damage to yourself and/or others,
please observe the precautions as they contain highly important
information related to personal and product safety.
For safe handling of the product, please read the following precautions
carefully before use.

E-3
Safety Precautions
Do not rest heavy weight on the product. It might deform the outer casing, damage
internal parts, make the waterproofing fail, or result in fire or electric shock.
Please note that some marks may be left on the camera scraping against the dials
or gears of the housing.
Handle the product carefully so as not to scratch the front port, the lens, the flash
window or the finder.
Always dry the front port, the lens, the flash window or the finder using a soft cloth to
prevent stain or salt residue from marring the glass surface.
Rinse the product with fresh water, after underwater use. Ensure that the product is
waterproofed before rinsing. Refer to [Maintenance and Storage] (P.E-23) for details.
Make sure that the connectors have been secured with the connector caps before
rinsing the product with fresh water, after removal from other products.
Never use chemicals, cosmetics, any petroleum solvents such as paint thinner, or
neutral detergent on the product. They may deform and damage the product.
Do not leave the product in places with hot temperatures such as inside of a car or in
a car trunk in summer. The heat may deform plastic parts of the product, damaging
internal parts and resulting in potential fire or electric shock. If the product is sealed
tight in hot conditions, heated air expanding inside the product may deform the casing
and ruin the waterproofing.
Do not store the product in wet or high humidity place, to avoid mold, rust, corrosion
or malfunction.
Do not store the product with naphthalene or camphor mothballs, or in locations such
as a laboratory where chemicals are used. This environment can cause mold, rust,
corrosion or malfunction.
SEA&SEA SUNPAK Co., Ltd. assumes no liability for compensation of loss of
captured images or expenses caused by loss of images, even if you are unable to
shoot due to a product defect or malfunction.
SEA&SEA SUNPAK Co., Ltd. will not be responsible for the replacement or
compensation for cameras, lenses or those accessories damaged due to your
invalid operation.
SEA&SEA SUNPAK Co., Ltd. assumes no liability for errors or discrepancies in
this manual.
Carefully observe the O-ring maintenance manual for the handling of O-rings
before use.
The silicon grease included in the product package is inedible.

E-4
Precautions on Handling the O-ring
CAUTION
Are there any scratches or cracks in the O-ring?
Be careful about dust, sand, and hair
SEA&SEA products use blue O-rings. These O-rings are impregnated with
silicone oil through a special process. The lubricating effect of the O-ring lasts
as long as the silicone oil is gradually seeping out from within.
For the maintenance of these blue O-rings, make sure to use genuine SEA&SEA
silicone grease (O-ring grease for use with the blue O-rings that comes in tubes
with blue lettering and blue caps). If you use silicone grease from other companies
or SEA&SEA’s own silicone grease that comes in tubes with black lettering and
black caps, the grease you apply will be sucked into the blue O-rings due to
their special characteristics, which will result in insufficient grease. If this happens
even once, the O-ring will not revert to its normal state and must be replaced.
If the grease is insufficient, the O-ring will not slide, and it will become harder
to open and close the waterproof parts. Because of this, it could become
impossible to open or close the housing or it could cause flooding, so please
refrain from using the housing with insufficient grease.
Check the O-ring to make sure there are no
scratches or cracks. If there are, replace the
O-ring with a new one immediately. When
handling the O-ring, do not use pointed
metal objects, which could damage the
O-ring. Use of the included O-ring remover
is recommended.
Check the O-ring to make sure that there is no dust, sand, or hair on the O-ring,
in the O-ring’s grooves, or on the O-ring’s contact surfaces. If any of these things
are attached, remove them completely. If used as is, these things could cause
flooding.
This product is kept watertight by the O-ring. To keep the O-ring functioning
properly, please observe the following. Improper handling of the O-ring could
cause flooding.
O-ring remover

E-5
Silicone grease protects the O-ring from
chafing. After checking the O-ring to make
sure that there are no scratches, dust, or
debris, apply a light coating of silicone grease
to the entire O-ring with your finger. Applying
too much grease will make it easier for dust
and debris to adhere to the O-ring, and could
cause flooding.
When fitting the O-ring into the O-ring
groove, insert it straight into the groove; do
not bend or twist it.
Precautions on Handling the O-ring
Coat with silicone grease
Do not twist the O-ring
Remove the O-ring for inspection before each use
Be careful about how you store O-rings
O-rings last for one year
Although it depends on how well they are maintained, how often they are used,
and how they are stored, O-rings generally last for one year. It is advisable to
inspect them before use, and replace them early.
When storing spare O-rings or O-rings that you have removed from the housing,
keep them in a cool place out of direct sunlight. Also, when storing O-rings, do
not place heavy objects on them or twist them.
In principle, the O-ring should be removed before each use so that the O-ring,
O-ring groove, and O-ring contact surfaces can be checked. This is because you
cannot find any sand or debris that may have gotten into the O-ring groove if the
O-ring is not removed. For routine maintenance prior to each use, it is advisable
to make sure to remove the O-ring.

E-6
Accessories
Before using this model, check to make sure that all accessories are
present.
MDX-7D
Attachment tool
O-ring remover
Hex Wrench
Sillicon Grease
Connector cap (x2)
(mounted)
Fiber-optic cable socket
cap (x2) (mounted)
CR2032 lithium battery
(mounted)
Housing body cap
(mounted)
O-ring Maintenance Manual
MDX-7D Instruction Manual (this manual)

E-8
Quick shoe base
Quick lock
Identification of Parts
CAUTION
CAUTION
1
2
Leak Sensor
Replacing the leak sensor battery
Instructions for replacing the leak sensor
battery set in the rear case.
Use CR2032 batteries.
Press the round center part
firmly and remove the battery
Insert the battery with the plus
side up
Front case
Guide pin
Sync connector
Quick shoe
Leak Sensor
The leak sensor lights up in red if water
leakage is detected while underwater. If
the leak sensor lights up, surface as soon
as you safely can and remove the camera
from the housing.
If a lot of water leaks in, the atmospheric
pressure inside the housing will increase,
which is very dangerous. When releasing
the locking latches, the rear case could
come flying off, so be very careful.
Guide pin

1
2
E-9
Identification of Parts
CAUTION
Finder
Replacing the finder
This product comes equipped with a 0.5x pick-up finder. The finder can
be replaced with an optional finder unit so you can change the finder
magnification to match your shooting conditions.
Rotate the finder unit mounted on
the rear case in a counterclockwise
direction to remove it
The screw areas are coated in
grease, so be careful not to touch
them.
Rotate the replacement finder
unit in a clockwise direction to
attach it
Before attaching the finder, check to make sure that there is no dust, dirt,
or debris inside it.
When replacing the finder, do not touch the surface of the finder lens.
When replacing the finder, always refer to the instruction manual provided.