Canon EF 24-105mm F4L Service Notice by Canon Philippines

Some of the units of Canon 24 to 105 mm F2 lenses are showing autofocus issues. The Canon Philippines website has mentioned some very clear steps to identify that your lens is being affected or not.  Canon Philippines website also issued list of serial numbers of the lenses that may be affected with the auto-focus malfunction issue. So, you can personally check that your legs falls on that category or not.

Take a look at the service Notice published by the Canon Philippines website 

Service Notice: EF 24-105mm f/4L IS II USM Lens

05 May 2017

Thank you for using Canon products.

We have determined that some EF 24-105mm f/4L IS II USM lenses exhibit an AF operation-related malfunction. The details of the phenomenon and Canon’s service policy are described below.

We would like to offer our sincere apologies to users 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.

Phenomenon

At the wide-angle end, focus is not achieved properly when a peripheral AF points are selected, regardless of the AF area selection mode.

Affected Lenses

If the first two digits in the serial number (see the image below) of your lens are ”48”, ”49”, ”50” or ”51”, then your lens MAY POSSIBLY be affected.

How to check if your lens is affected:

1. Click the search button below to display the serial number input screen.

(2) Input your lens’ serial number (10 digits) and then click the [Submit] button.

* Please double check the serial number you entered before you click the [Submit] button.

(3) One of the following three messages will be displayed.

“Your lens is NOT an affected product”

“Your lens is an affected product”

“Invalid number”

*The list of affected lenses will be updated periodically in accordance with the handling status.

Market Support

If your lens is affected, support will be provided free-of-charge regardless of the warranty status. Please note that even if your lens is affected, inspection/repairs for any issue other than the above phenomenon will be handled as normal repairs.

source