My A700 has recently developed a fault. It started intermittently but is now constant and preventing me from using the camera.
There is a gentle pulsing at regular half second intervals. It sound/feels like focusing mechanism but the lens does not focus, the pulsing is just in the camera body.
The other symptom is that the MF indicator is constantly showing even though the focus mode switch is in AF mode.
Another point I've notice is that the pulsing is constant regardless of what I'm doing. If I try to use the menu, it is extremely slow.
I have checked/cleaned the lens contacts on the camera and lens. The lens is being detected by the camera and the problem happens with all lenses.