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Canon Acknowledges Problem with EF 24-105mm Lens
Canon USA have issued a Service Notice for the new Canon EF 24-105mm f/4L IS USM lens, about the lens flare problem that we reported last week.
Canon USA Service Advisory
We have recently discovered a problem with early production samples of the EF24-105mm f/4L IS USM lens in which flare occurs at an unacceptable level under certain conditions. The flare is most obvious in the wide zoom and wide aperture settings. (See attached picture.)
The problem affects all EF24-105mm f/4L IS USM lenses with a control number less than UT1000. With apologies for the inconvenience involved, we ask customers to check the control number on the back of the lens.
Affected model and control numbers:
EF24-105mm f/4L IS USM
The control number is indicated on the back cover of the lens with UTxxxx symbol (see the number in the red ellipse on the right), and if it contains the letters UT followed by a number under 1,000, the product is affected. Should you have any difficulty identifying the control number, please contact our service centers.
Repair services:
* Starting November 14, 2005, Canon will repair, free of charge, EF24-105mm f/4L IS USM lenses exhibiting the above-mentioned flare problem. Canon will also cover the cost of shipping and handling in connection with this repair.
* 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 .(JavaScript must be enabled to view this email address)
* 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 sincerely apologize for any inconvenience caused by this issue, and appreciate your understanding in this matter. Thank you for your support and patronage of Canon products.
Website: Canon USA
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#1 nick in japan
Good job Canon, but some of us are dying to know what happened to those early numbered lenses, and what exactly "UT" stands for!! I hope it isn't "Unsatisfactory Test"
2:37 am - Saturday, August 5, 2006
#2 Oscar G. Moreno
I contacted Canon USA inmediately after I read your notice of the potential flare problem with this lens. Within hours, I received prepaid shipping information from Canon to send my 24-105mm lens back for review and testing.
We'll keep you informed on the return effort.
Very good job by Canon so far.
Oscar in NC
6:23 pm - Thursday, January 10, 2008