Ikelite Underwater TTL Housing for Canon EOS 40D - Manual (Page 19)

19
Pre-Dive Your System
It is recommended that you take the complete system into a swimming
pool before use in open water. This will give you a chance to become
familiar with the handling and operation of your housing and strobe(s).
As soon as you enter the water, take a moment and check the housing
to see that it is properly sealed. Next, check to see if there are any
bubbles on the face of the port. If there are, take your fingers and
remove them. If there are bubbles on the lens port they can produce soft
focus spots in your photographs.
Lubricants
- Ikelite provides silicone lubricant with the housing. We recommend that
you use only Ikelite lubricant. Other brands may cause the o-ring to
swell and not seal properly.
- Use only enough Ikelite lubricant to lightly cover control shafts and
o-rings. Wipe off any excess lubricant with a clean cloth. Lubricant is not
a sealant and is used to reduce friction. Excessive lubricant can collect
sand and dirt which may interfere with proper sealing.
Note: Lubricant is not needed on the main housing o-ring to maintain a
housing seal, however, lightly lubricating this o-ring can extend it’s life
and aid in seeing a good housing seal. Too much lube can attract debris
increasing the potential for a leak.
CAUTION: Never use spray lubricants as the propellant ingredient
can cause the plastic housing to crack. Use ONLY Ikelite lubricant .
Usage