Canon 7D photos can show traces of earlier shot

Bad news: traces of one shot can show in the next under some circumstances. Good news: Canon plans a 7D firmware update to fix it.

Canon has warned that traces of one photograph taken with the company's new higher-end EOS 7D SLR can sometimes be seen in the next.

Canon's EOS 7D
Canon's EOS 7D Canon USA

The good news: new software for the camera should be able to fix the problem at some point. "Canon is currently investigating and analyzing the cause of this phenomenon, and we are planning to release a firmware update to address this issue," the company said in a a service notice.

The problem occurs only when shooting continuously, Canon said: "In images captured by continuous shooting, and under certain conditions, barely noticeable traces of the immediately preceding frame may be visible. This phenomenon is not noticeable in an image with optimal exposure. The phenomenon may become more noticeable if a retouching process such as level compensation is applied to emphasize the image."

The Canon 7D, which just arrived on the market, costs about $1,700 and can shoot 18-megapixel images at speeds of up to eight frames per second.

(Via Cameratown)

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About the author

Stephen Shankland has been a reporter at CNET since 1998 and covers browsers, Web development, digital photography and new technology. In the past he has been CNET's beat reporter for Google, Yahoo, Linux, open-source software, servers and supercomputers. He has a soft spot in his heart for standards groups and I/O interfaces.


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