Canon 1Ds Mark IV * CMOS size 36×24mm
* 21 megapixels
* ISO 25-12800 (expandable to ISO 10, 25600, 51200)
* 69-point AF EAC technology (do not know what this technology) (TTL-AREA-SIR II AF)
* Flash Sync Mode: 1 / 4000 ESR (X high-speed flash sync?)
* USB2.0 and external HD transmission
* 4 to 3 and 16 to 9 on the two show
* HDMI terminal. External monitor may display LV
* Continuous rate of 6.8 per second
* 2 DIGIC4 processing chips
* 24fps and 30fps 2 kind of video mode