RobertLynn wrote:
You know...I\'d actually buy the pancake if it was USM.
The Verge has the T4i, 18-135 STM, and the 40mm STM review units and they are reporting that the autofocus is completely silent. They seem to imply that it\'s completely silent and \"insanely fast\":
STM stands for Stepping Motor, and mean that the lenses focus quickly, smoothly, and silently. The pitch is no joke, either: even as we held the lenses to our ears, there\'s no sound coming out whatsoever. The lenses use both phase-detect and contrast-detect autofocus simultaneously to make focusing insanely fast on the T4i, and the combination allows for a Canon first: continuous autofocus during video recording.
