Some models of the recently announced Canon EOS 650D / EOS Rebel T4i may cause an allergic reaction in some photographers due to an abnormality in the new Canon DSLR’s rubber grip.
The unusual Canon announcement states that early batches of the Canon 650D – produced between May 31 and June 15, 2012 – were produced with a higher quantity of rubber accelerator than usual. As a result, the rubber grips on these new Canon DSLRs may turn white “due to a chemical reaction with the rubber accelerator and other substances.”
Canon said it has identified the substance zinc bis is what causes the rubber surface to turn white, which could lead to allergic reactions in some people.
“The amount of zinc bis (N,N’-dimethyldithiocarbamate) detected during our testing was minimal,” Canon said in a statement.
“While Canon has not received any reports of injury or allergic reactions, depending on one’s health and physical condition, in rare cases when this substance comes into contact with skin, allergic skin reactions* may develop. In addition, if eyes are rubbed after contact with the substance, symptoms, such as red eyes, may develop.”
Canon says you can use the serial number of your Canon EOS 650D / EOS Rebel T4i to see if your new Canon DSLR is affected.
If the sixth digit of your serial number is ‘1’, Canon advises photographers to
2) Enter your 12-digit serial number (as seen above) from your Canon DSLR then click the Submit button .
3) You will then either receive a message stating that your camera is not affected or one advising that your camera is affected, with a link to a further support section.
If the sixth digit of your serial number is ‘2’ or higher, your Canon DSLR is not affected, the company says.