I have not experienced this in my camera. Apparently a firmware update will address this weird problem. FYI
http://www.canon.com.au/support/cust...tID=eos7d_bodyQuote:
Phenomenon
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.
