* 32 MP FF sensor
* Dual Digic IV processors
* ISO from 50 - 12800 + H1(25600) + H2(51200)
* 5.5 FPS
* 60 JPG Continuous Shooting
* 19 Raw Continuous Shooting
* Slightly larger AF area compared to the Mk III
* 920,000 pixel LCD screen
* Autofocus is upgraded
* Completely new power system - fuel cell based
# CMOS Size: 36x24mm, 21MP.
# ISO25-12800 (Ext ISO10, 25600, 51200 )
# 69 focusing points (TTL-AREA-SIR II AF)
# Flash Sync Mode of 1/4000 ESR
# External HD and USB2.0
# 4:3 and 16:9 display
# HDMI, LiveView
# 6.8 fps
# 2 DIGIC4 processors
# 24fps or 30fps HD Movie
# 2 upgrade lens come out with 1Ds Mark IV, 100-400L F4.0-5.6 IS and 50/F1.4 USM

