Canon Japan and Australia have issued a Canon EOS R5 C service notice.
Here is the Canon AU notice:
Customers who recently purchased the EOS R5 C digital cinema camera
It has been discovered that the following minor defect may occur in some EOS R5 C digital cinema cameras. We sincerely apologise for any inconvenience and concern this may cause to customers using this product. We will continue to ensure thorough quality control so that customers can use this product with peace of mind.
Issue
Due to a manufacturing defect in the autofocus, the camera may repeatedly go in and out of focus in movie mode.
Products
Selected units in Australia of the EOS R5 C digital cinema camera.
Our action
We are aware that a very small number of units have been delivered to customers prior to this issue being identified. For those who received their unit on or before 21 March 2022, please contact the retailer you purchased the product from to organise the return and replacement or repair of your camera. We appreciate your understanding.
For those customers eagerly awaiting their EOS R5 C we expect this may delay shipping of your product.
The Canon Japan notice [translated] includes more details:
For customers using the digital cinema camera "EOS R5 C"
March 23, 2022
Canon Marketing Japan Inc.
Thank you for using Canon products.
It has been revealed that the autofocus function of some products of the digital cinema camera "EOS R5 C" may not work properly in the movie mode (power switch is set to VIDEO) due to adjustment problems in the manufacturing process. rice field. [?] Therefore, we would like to inform you about the contents and our response.
We sincerely apologize for any inconvenience and concern to customers using this product.
In the future, we will continue to thoroughly implement quality control so that our customers can use our products with peace of mind. We appreciate your understanding.
Phenomenon
Target Mode
Video mode (set the power switch to VIDEO)
Phenomenon
When the autofocus is activated, even if the AF frame is displayed, the phenomenon of out of focus (repeatedly in focus and out of focus) occurs.
* This phenomenon occurs only when the autofocus is activated in the movie mode. It does not affect autofocus in still image mode (set the power switch to PHOTO).
Products
Some products of the digital cinema camera "EOS R5 C"
The method for determining the target product is as follows.
This may occur in products where the 4th and 5th digits from the left of the serial number on the bottom of the camera body are "42" and the last 3 digits are "002 to 115".
Target serial number: 651 42 9000 002 to 651 42 9000 115
* The target is early products in Japan and Oceania.
About Correspondence
EOS R5 C for which the above phenomenon has been confirmed will be readjusted free of charge. Please send it to the store where you purchased it or the repair base window, or bring it with you. In addition, we will take care of the equipment, so it will take about a week to return it. Thank you for your understanding.
The latest Canon EOS 5D Mark III bodies being shipped have a correction in place to solve the light leak issue.
Roger Cicala at LensRentals.com shares the fix.
Canon Inc. has issued a service notice regarding a very small number of Canon EF 300mm f/2.8 L IS II USM Lenses (thirty seven of them).
If you own a 300 L IS II with one of the serial numbers listed below, you might notice significant backfocusing when one of the Canon EF 1.4x Extenders (version I, II or III) are also mounted. If this is the case with your lens, contact Canon for corrections to be made.
8210000204, 8210000331, 8210000335, 8210000338, 8410000266, 8410000296, 8410000276, 8410000339, 8410000344, 8410000347, 8410000348, 8410000357, 8410000361, 8410000368, 8410000369, 8510000008, 8510000014, 8520000122, 8520000146, 8520000191, 8520000213, 8520000275, 8520000324, 8520000338, 8520000354, 8520000357, 8520000358, 8520000361, 8520000365, 8520000366, 8520000378, 8520000335, 8520000414, 8520000441, 8620000114, 8620000130, 8620000032
No reason was given for the source of the problem.