Canon EOS Rebel T4i - allergy warning!

Fred Miranda
Registered: Dec 31, 2001
Total Posts: 22185
Country: United States

Canon USA warns that the front rubber grips on some EOS Rebel T4i units may turn white due to a substance called zinc bis (N,Ní-dimethyldithiocarbamate).

According to Canon the substance may cause an allergic reaction in some people, and as a precautionary measure they advise owners of affected cameras to wash their hands with water if they have come in contact with the rubber grip.

Read entire Canon Advisory.

Registered: Jul 24, 2008
Total Posts: 946
Country: United States


Registered: Apr 19, 2007
Total Posts: 6258
Country: United States

Welcome to the world of chelate coordination chemistry.

Registered: Oct 09, 2003
Total Posts: 3775
Country: United States

It definitely is not the first time this happened. I was allergic to the grip of my 5D classics, which also turned white after a couple of years. It took me six months to figure it out and end my suffering from it.

Registered: Mar 07, 2005
Total Posts: 28
Country: United States

Is this the same thing that turns the rubber grips on my L series lens kind of a chalky white?