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Canon to release firmware v1.0.9 for EOS-1D Mark III  
Friday, July 20, 2007 | by Rob Galbraith

Up to Date: The EOS-1D Mark III's Set-Up Menu 3 showing that firmware version 1.0.9 has been loaded

Canon is planning to release a firmware update for the EOS-1D Mark III by the end of this month that's meant to improve the camera's AI Servo autofocus performance, provide a sharper zoomed view when playing back photos on the rear LCD, fix a bug that affects the operation of the Main Dial and Quick Control Dial and correct errors in the Italian and Simplified Chinese menus.
In recent days, Canon's service departments globally have received firmware version 1.0.9 (the camera has so far shipped with v1.0.8) and have been given the go-ahead to begin installing it in customers' EOS-1D Mark IIIs. Updated cameras are being returned from service with a letter that briefly describes the changes. Canon has also begun installing firmware v1.0.9 at the factory; those bodies should begin to show up at retailers in the near future.
More information is in a statement from Canon USA below. We have an assessment of the autofocus performance of the EOS-1D Mark III with firmware v1.0.9 installed here.

Canon USA Statement

DATE: July 20, 2007
SUBJECT: EOS-1D Mark III Firmware Update, Version 1.0.9

In the interests of better customer support, Canon has developed new Version 1.0.9 firmware for the EOS-1D Mark III Digital SLR camera. This firmware update incorporates the following improvements and fixes:

  • Improves the look of images when enlarged on the LCD monitor. Applies a slightly stronger sharpness setting to the LCD monitor when images are enlarged.
  • Improves the consistency of AI Servo AF under certain conditions. Reduces the tendency of the camera to autofocus on high-contrast backgrounds when shooting in conditions where AF detection is difficult, such as when the main subject is not completely covered by the AF frames or if the main subject's contrast is low.
  • Provides countermeasures for Main Dial response errors (Main, Quick Control, Vertical-grip Main). Fixes a rare response error in the Main Dials in which they either did not respond when rotated or would change several clicks' worth even if only clicked once.
  • Corrects errors in the Italian and Simplified Chinese menu screens.

Please note that Version 1.0.9 firmware is currently scheduled to be made available for download from the Web at the end of July. It is NOT currently available for download. We apologize for any inconvenience this may cause. However, Canon U.S.A. Factory Service Centers in Jamesburg, NJ and Irvine, CA can install the updated firmware as of now. EOS-1D Mark III customers who wish to send their cameras into a Canon Factory Service Center for this upgrade are welcome to do so at their own expense. (Customer pays shipping to the Factory Service Center; Canon installs the firmware update and ships the camera back to the customer at no charge.)  On the other hand, if the customer prefers, he or she can wait until version 1.0.9 is available for download at no charge from Canon's web site. If a customer sends his or her camera into the service department now, and firmware is upgraded by the service department, the soon-to-be-available download will not add any additional functionality to the camera -- there will be no need to perform a further firmware update when version 1.0.9 is made available for download on Canon's web site.

U.S. residents are kindly directed to contact the Canon Customer Support Center for further assistance at 1-800-828-4040. Support hours are Monday thru Friday - 8:00 AM to 12:00 midnight; and Saturday 10:00 AM to 8:00 PM (all times EST). Alternatively, if electronic support is preferred, please send your email to

This information is for residents of the United States of America 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.

We appreciate your understanding in this matter. Thank you for your support and patronage of Canon products.

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