Just in case anyone's interested, here's the article at Digi-camera Watch (Japanese):
http://dc.watch.impress.co.jp/docs/news/20100910_392992.html
The large one can take up to a 800mm f/5.6... but I guess the most important thing
is that big "Canon" printed on the surface ;D
http://dc.watch.impress.co.jp/docs/news/20100910_392992.html
The large one can take up to a 800mm f/5.6... but I guess the most important thing
is that big "Canon" printed on the surface ;D