Autofocus problem of Canon EOS-1D Mark III and EOS-1Ds Mark III is not new, it has been around since the 2007. Therefore, Canon is now offering free accuracy checks and adjustments for any affected products.
The phenomenon is if an AF point other than the centre AF point is used, focus may become soft. Free AF accuracy checks and adjustments will be provided to affected products. Please click here to complete an online registration form if you own an affected product and wish to arrange for a service. After you have submitted the form you will be contacted by a representative of a Canon Service Centre within one week for a service appointment.
A prior registration and appointment is preferred before sending your camera to Canon. Any cameras received without a pre-registration and appointment will be serviced at the earliest possible opportunity.
Based on the comments and suggestions of professional photographers Canon has also created a supplementary ‘AI Servo Auto Focus Manual’ website for users to fully utilise the AF capacity of the cameras. Please refer to this information when you shoot with the EOS-1D Mark III and EOS-1Ds Mark III cameras.
The following web announcements were previously released to inform users about improvements in the AF accuracy of the EOS-1D Mark III and EOS-1Ds Mark III.
* EOS-1D Mark III: Start of Repairs for AF Mirror Adjustment Problem
* Release of firmware that improves the stability of AF accuracy in AI servo AF when shooting extremely low-contrast subjects
EOS-1D Mark III – firmware version 1.2.3.
EOS-1Ds Mark III – firmware version 1.1.2.
The above information, together with the provision of free AF accuracy checks and adjustments, allow users to utilise the AF function of the EOS-1D Mark III and EOS-1Ds Mark III with greater assurance.
Canon offers its sincerest apologies to customers using these products who have been inconvenienced by this issue. Canon always strives to provide the highest quality products to its customers, and it spares no effort in its quality management to make sure that its customers can use its products with confidence. Canon hopes its efforts will earn your understanding.
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