Canon Announces T6 Sensor Recall
I want to give credit to Canon for so quickly handling the problem we first reported with some T6 sensors. We announced the problem on April 30th, and within 10 days Canon had determined which cameras were affected (those with Serial Numbers beginning with “01 or “02”) and issued a product alert.
Let me add that most cameras in the affected SN range do NOT have the problem. Some cameras have a mark in the battery door that identifies them as not possibly affected.
Even if your camera does NOT have this mark, it still probably isn’t affected. If you lock up the mirror for sensor cleaning you can look and see if you have one of ‘those’ sensors. If you aren’t sure, Canon will check for you at no cost and correct the problem without charge, although it will take them a bit of time to get a solution ramped up.
Some Information and Speculation
The following is NOT information directly from Canon, but I think it’s quite reliable. Several knowledgable people have told me the issue arises from the coating (more properly sputtering) process on one of the pieces of glass making up the sensor stack. If you want more detail on it, Dave Etchells at Imaging Resource has as a complete discussion of it.
The takeaway message is the sensor issue is not going to occur to a normal sensor over time. If you camera is fine now, it will be fine in several years. The problem probably occurred at a supplier to Canon and the QA process just missed it.
And Some Proper Credit
I can’t say enough about how impressed I am with the speed with which Canon has addressed the issue. We’ve seen problems like this ignored for months, or denied until the next version of the camera is released. Mistakes in manufacturing complex devices are inevitable. How the manufacturer handles them is the variable.
If, like me, you’d like to see more manufacturers take positive action, and fewer blow smoke up our rears for months or years, the please join me in supporting Canon for doing exactly what we would hoped they would do.
Author: Roger Cicala
I’m Roger and I am the founder of Lensrentals.com. Hailed as one of the optic nerds here, I enjoy shooting collimated light through 30X microscope objectives in my spare time. When I do take real pictures I like using something different: a Medium format, or Pentax K1, or a Sony RX1R.