I advised my readers on April 30 to a possible sensor issue with the Canon Rebel T6i and T6s cameras. Now Canon has responded with a Service Advisory for some affected models. Below is their advisory. You can see sample photos taken with the Rebel T6s and Rebel T6i cameras.
This notice is to proactively inform our customers of the phenomenon described below along with Canon’s support actions. We value the trust our customers have placed in us, and we are dedicated to continuously improving product quality as well as delivering industry-leading service and support. We offer our sincerest apologies to any customer who may be inconvenienced.
In some units of the models listed below, the following phenomenon may occur due to irregularities on an optical layer located in front of the image sensor:
White spots may exist on the optical layer which may result in the appearance of dark circular patterns on the captured image under certain shooting conditions.
The phenomenon described above may occur in cameras whose first and second digits of the serial number are as set forth below.
Serial Number: [XXnnnnnnnnnn]
EOS Rebel T6s: If “XX” is “01” or “02”, the phenomenon described above may occur.
EOS Rebel T6i: If “XX” is “01” or “02”, the phenomenon described above may occur.
“n” represents any digit.
NOTE: If the battery cover contains the marking illustrated below, the camera is NOT affected by the phenomenon described above even if the first and second digits of the serial number are of the numbers mentioned above.
Potentially affected cameras will be inspected and affected units will be repaired free of charge.
We are developing a solution and will inform you as soon as it is available.
Canon EOS Rebel T6s : TBA
Canon EOS Rebel T6i : TBA
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.
If you have not already done so, please register your Canon EOS Rebel T6s or your Canon EOS Rebel T6i. By registering, we will be able to notify you via email about future announcements.