dari websitenya Canon di sini:
(emang udah ada yang punya mark-III ??)

Firmware Update: Version 1.1.3
This firmware update (Version 1.1.3) incorporates the following improvements and fixes.

1. Increases transmission speed when using high-speed SD cards.
2. Fixes a phenomenon involving not being able to release the shutter.
3. Improves AF tracking in specific conditions.
4. Corrects errors in the Spanish and Korean menu screens.

Just FYI :) kalau kurang berkenan, worst case scenario jadi thread srimulatan :-"