Question About 70-200mm f4L IS

Started Jan 5, 2012 | Discussions thread
Peter Kwok
Peter Kwok Senior Member • Posts: 2,405
It is the gyro

I think the 70-200 f4 IS is the last Canon lens with mechanical rotating gyros to sense movement. The gyros are on continuously. Newer IS use non-moving piezoelectric sensors. Only the motors that move the glass elements make sound.
Peter Kwok
WYSIWYG - If you don't like what you get, try to see differently.

 Peter Kwok's gear list:Peter Kwok's gear list
Canon EOS M Canon EOS 5DS Canon EF 70-200mm f/4L IS USM Canon EF 16-35mm F4L IS USM Canon EF 24-105mm f/4L IS USM +3 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow