Join Date: Sep 2004
Location: Chwk, , Canada.
Hmmm....a bit more reading and I answered my own question:
"All Canon EF lenses have a microprocessor within the lens that provides a number of items of information to the camera. When you turn on an EOS camera film or digital the camera and lens communicate, and the camera "knows" the lens' focal length, if it's a zoom lens the actual zoom setting it's currently set to, and the maximum and minimum apertures, among other things. When the camera is activated, this basic information is transmitted to the camera body's main processor. When the autofocus and light metering are activated by pressing the shutter button halfway down, additional communication is carried out, chiefly signaling [u]the aperture control motor within the lens</u> to stop the diaphragm down to an amount determined by the camera (or the user, if the camera's used in Av or Manual exposure modes), and a start signal is sent to [u]the lens' built-in focusing motor</u> to begin driving the focusing elements of the lens for autofocus."
So I guess the short answer is NO...it Won't work!
Pity, I was a great deal!