<p>Actually concerning Canon abandoning the FD mount in favor of their current mount, it appears they did a good thing nowadays but I remember when it first happened Canon people were P***ED, to put is lightly. I think a lot of people may have jumped ship to Nikon when they did that since Nikon kept their mount. However, nowadays they've slowly changed it. Yes, you can mount old lenses on new camera bodies, but you lose a lot of the features. <br>
To the original poster, the AI-S lens aren't like G or E, so you get the aperture ring. </p>