比较可能的功能有电子罗盘，处理器和内存升级，具有自动对焦和拍摄视频功能的摄像头，和其他一些小的升级。
Likely features include a digital compass, processor and memory upgrades, an improved digital camera with auto-focus and video-recording capabilities, and other minor improvements.
在1987年3月，佳能推出了EOS650，世界上第一个自动对焦(自动对焦)相机，实现电子控制整个系统。
In March 1987, Canon launched the EOS650, the world's first AF (autofocus) SLR camera to realize electronic control for the entire system.
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