Service advisory from Canon regarding EOS 1D Mark III, & EOS

Text of a service advisory from Canon regarding EOS 1D Mark III, & EOS
1Ds Mark III> (too much oil on mirror hinge may spray on low-pass-filter)

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Thank you for using Canon products.

We have discovered that images taken by some EOS-1D Mark III and EOS-1Ds
Mark III digital SLR cameras may exhibit ring-shaped spots. We would
like to convey the details and our service policy.

We offer our most sincere apologies to customers using these products
who have been inconvenienced by this issue. Going forward, we will spare
no effort in our quality management to make sure our customers can use
our products with confidence. We hope our efforts will earn your
understanding.

Phenomenon
Images taken may exhibit large ring-shaped spots.

Cause
These ring-shaped spots are the images of oil lubricant on the surface
of the low pass filter (LPF), which is located in front of the CMOS sensor.

This oil is used inside the Mirror Box to lubricate some of the camera's
moving parts. If the oil is applied too liberally when the camera is
manufactured, it can become scattered onto the surface of the LPF
through normal camera operation.

The image above shows the top of the mirror box when the main mirror is
flipped up. The white spots in the red circles are excess lubricant oil.
Affected Products
EOS-1D Mark III and EOS-1Ds Mark III digital SLR cameras
Support
We ask that customers who are encountering this phenomenon or, who have
noticed that oil is visible on the surface of the back side of the
mirror, please contact our Customer Support Center. To prevent oil from
scattering, which may seriously affect images, our Customer Support
Center will arrange free cleaning of the mirror box to affected
customers to remove the excess oil.
Oil Lubricant Used in Cameras
Measures are being implemented to control the amount of lubricant
applied during manufacture in order to reduce the occurrence of oil
spots. However, because this lubricant is required to ensure proper
operation of the camera’s precision mechanical parts, it is impossible
to eliminate all instances of oil scattering. If you require CMOS sensor
cleaning, please contact our Customer Support Center.

Thank you for your patronage and support of Canon products.

This information is for residents of the United States and Puerto Rico
only. If you do not reside in the USA or Puerto Rico, please contact the
Canon Customer Support Center in your region.

Contact Information for Inquiries
Canon U.S.A., Inc. Customer Support Center
1-800-828-4040 (toll free)
Email: [email protected]
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