Wikia

**Canon Powershot S3IS**
Processor:	DIGIC II processor
OS:	VxWorks
CHDK:	Yes
Sensor:	6 Megapixel CCD, 1/2.5" ICX624
Resolution:	2816x2112
Lens:	F2.7-3.5, 12X optical zoom lens, 36mm - 432mm (35mm equiv)
OIS:	yes
Display:	2.0" with 115,000 pixels, rotateable
Storage:	SD / SDHC / MMC memory cards
Battery:	4 AA batteries; 550 shots (CIPA standard)
Dimensions:	116.8 x 78.7 x 76.2 mm / 4.6 x 3.1 x 3.0 inch (WxHxD)
Weight(body):	410 g / 14.5 oz
Movies:	640x480 (30 fps)
USB:	2.0
Misc:	4X digital zoom, Electronic Viewfinder, PictBridge support

PowerShot S3 IS Edit

The Canon PowerShot S3 IS is a 6.0 megapixel digital camera launched in May 2006.

CHDK is available for S3 with firmware 1.00a
The S3 has SDHC storage media support, SD cards with 16 GB capacity has been successfully tested, see Benchmarks for S3

Format the SD card and create one file called ver.req, then press SET and DISPsimultaneously:

Canon PowerShot S3 IS
P-ID:311A  PAL
Firmware Ver GM1.00A
E18
Feb 22 2006  08:47:32

Instead of E18 you will most probably get a "No error" message.

Pressing DISP once again with SETstill pressed:

Adj Ver.001.011

Pressing DISP a third time with SETstill pressed:

SubCPU Ver 9.13

#define LED_PR 0xc0220088

MEMBASEADDR=0x1900
RESTARTSTART=0x50000
MEMISOSTART=0x96410
ROMBASEADDR=0xff810000

Download location for firmware dumps:
→ P&S firmware dumps mirror