Received this from a few people today
Thank you for using Canon products.
We have discovered that, in rare instances, the main mirror of some EOS 5D Digital SLR cameras may detach due to deterioration in the strength of the adhesive. Accordingly, we would like to convey the details and our service policy concerning this phenomenon.
We offer our sincerest apologies to those customers who have been inconvenienced by this issue. Canon always strives to provide the highest quality products to our customers and we will spare no effort in our quality management to make sure our customers can use our products with confidence. We hope our efforts will earn your understanding.
Phenomenon
The main mirror of the camera detaches and images cannot be viewed through the viewfinder.
Affected Product
EOS 5D Digital SLR cameras whose main mirror has detached.
User Support
We will repair and reinforce the mirror portion of the affected products free of charge. If you own one of the affected products, please contact our Customer Support Center.
thanks for the tip
cr
32 Comments
I’ve read lots of people had to pay to get this problem fixed, is Canon going to reimburse them?
For those who think that you can just test glue, unfortunately, it just isn’t easy, even with sophisticated testing, sometimes it fails. Having worked with adhesive bonded items in aerospace applications, no matter how much care you use, things can and do go wrong.
The adhesive manufacturer can change his manufacturing process without notice, or even use different ingredients, primers can be applied incorectly, or left off, or a buyer will buy from the cheapest source and get poor quality, the surface might not be cleaned properly, the list goes on forever.
This is why a good design includes mechanical attachment along with adhesive. The 5D apparently did not have the backup mechanical attachment, and if so, it was a poor design. The 5DII is said to have a mechanical attachment along with a improved adhesive.
Lets hope that Canon is monitoring repairs and identifying unusually high failure rates, and then issuing a service bulletin. We can’t know why they seem to suddenly be paying more attention, there may have been some management shakeups, or just that someone retired and the new guy is taking his job seriously.
I’ve seen that happen in my experience, a engineering drawing was wrong for years, and the new replacement employee spotted it and complained. The retiree had apparently been fixing things quitely for many years. Even so, we issued a service bulletin to allow our customers to check. They did not find any problems.
Another bad new from Canon, thay have to think about those happenings in the last years… Nikon is getting better and the image of Canon is suffering…
where did you find the info about nikon is the NO1 in dsrl producer
the top selling camera are canon
this is A OLD OLD NEWS