Canon issues allergy warning for EOS 650D/Rebel T4i
Published Jul 10, 2012
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dpreview staff
Canon has issued a warning to owners of the EOS 650D/Rebel T4i that the rubber hand-grips of some models may turn white, and produce a chemical that can cause an allergic reaction. According to Canon, the chemical, zinc bis (N,N’-dimethyldithiocarbamate), is not used in the production of the camera but is a potential by-product of a chemical reaction between other substances found in the hand-grip. Canon has identified a certain number of cameras where a larger than normal amount of 'rubber accelerator' was used in the production of this component, which could potentially cause this chemical reaction.
Canon has set up a website where you can check whether your model is affected. Click on this link and enter the serial number of your camera, and the site will let you know whether your camera is from the affected batch.
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The hand-grips of some EOS 650D/Rebel T4i cameras may become discolored due to a
chemical reaction caused by substances used in their manufacture (image: Canon Inc.) |
According to Canon USA, 'some EOS 650D/Rebel T4i cameras' manufactured between May 31st and June 15th 'may be affected' by this chemical reaction, which causes the hand-grips of the cameras to turn white. Zinc bis, the substance produced by the chemical reaction, may cause an allergic reaction in some people, and 'as a precautionary measure' Canon advises owners of affected cameras to 'thoroughly wash your hands with water if they have come in contact with the rubber grip'.
Read the Canon USA statement, including details of affected cameras and service options
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What improvements has Canon's Hybrid AF system brought to the EOS 650D's usability in live view, and what might this mean for the forthcoming EOS-M mirrorless camera? As a precursor to our imminent 650D/Rebel T4i review, we've published two videos showing how Hybrid AF works, compared both to conventional phase-detection AF and to a contemporary mirrorless rival (in this case the Panasonic DMC-G5). It's a chance see how the 650D performs but also gives an idea of what we can expect from the EOS-M, which uses the same technologies.
Updated: We've had a production sample Canon EOS 650D/Rebel T4i for a few days now, and we've been busy running it through our usual studio and real-world tests, ahead of a full review. We've updated our previously-published preview with a gallery of 27 real-world samples from the production camera, both JPEG and converted Raw, and included some Raw files for you to examine yourselves. We've also added the 650D to our studio comparison database, allowing you to check out how it compares to its peers and predecessors in our standard studio test scene. Click through to see the additional samples.
Just Posted: We've been shooting with Canon's latest entry-level DSLR - the Rebel T4i (EOS 650D), and have prepared an hands-on preview. The T4i shares many of the headline specs (18MP CMOS sensor, 9-point AF system, 1.0M dot flip-out LCD) with its predecessor, the EOS 600D / Rebel T3i, but significant changes have been made to every one of those features. The result is the first touch-screen DSLR and the first EOS to offer continuous AF in movie shooting mode. Read our preview to find out more about the 650D's features and what its 'Hybrid AF' really offers. The preview includes real-world samples and low-light studio shots.
Canon has announced the EOS 650D (known as the Rebel T4i in North America), and 18MP touch-screen DSLR with a sensor-based hybrid AF system for improved focus in movie and live view modes. The camera gains the all-cross-type 9-point AF sensor from the EOS 60D and can now shoot at 5fps. It also adds stereo mics for its Full HD video recording, which is available at 30, 25 and 24fps. The camera will be available from the end of June at a price of $849, body only, $949 will the 18-55mm IS lens or $1199 with the co-announced 18-135mm STM IS lens.
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