Canon Powershot A1200


CHDK for A1200 firmware 1.00a, 1.00b and 1.00c is available from the Download page.

The Powershot A1200 is the successor to the A1100 and was released in spring of 2011

Reviews and Specifications[]

Technical Data[]

  • Digic IV image processor
  • DryOS operating system
  • Sensor: 12.1 million effective pixels, 1/2.3 CCD (6.17 x 4.55 mm)
  • Max image size: 4000 x 3000
  • 4x optical zoom lens, F2.8 - F5.9
  • Optical viewfinder
  • No Image stabilization !
  • Fixed 2.7 inch LCD, 2300,000 pixels
  • Video: H.264 MOV (QuickTime), max. 4GB filesize or 10 minutes with 1280x720, linear PCM audio (monaural)
  • Video formats: 1280x720 @24 fps (HD), 640x480 @30 fps, 320x240 @30 fps
  • Interfaces: Hi-speed USB, analog audio out (monaural), analog video out (NTSC/PAL) (video & audio cable not included)
  • Storage: SD/SDHC/SDXC/MMC/MMCplus/HCMMCplus
  • Power: Two AA type batteries
  • Weight (with batteries): 185 g (0.41lb / 6.53oz)
  • Dimensions: 98x63x31 mm (3.86 x 2.48 x 1.22 inch)

User Notes[]

To enter CHDK <Alt> mode use the Playback button. This port support the use of the Face or DISP button as alternative ALT buttoms

Notes on SD Override for the A1200[]

SD overrides will only work when the camera is in AFL mode ( auto focus lock ). To activate AFL :

  1. The camera must be in P mode (on the upper dial) rather than AUTO or SCN.
  1. You must be in normal Canon shooting mode (not CHDK <ALT> mode)
  1. Press the "left/flower" button after first "half pressing & holding" the shutter release button.

If you complete the above 3 steps correctly, you should see the Canon software put the letters AFL on the upper right edge of the LCD.

Notes on Exposure Override for the A1200[]

Exposure overrides (including USB Bracketing mode) will only work if the Canon "Servo AF" mode is disabled.  Do this from the Canon shooting menu.

Firmware info[]

The ver.req file is used to retrieve firmware information from the camera.

From playback mode, press and hold down the button FUNCSET and press DISP.

First Page:

Canon Powershot A1200 

Firmware Ver GM1.00A ( 

Adj Ver.005.006 

Serial No. 23806000xxxx

Second Page:

Canon Powershot A1200 

P-ID:322B PAL D 

Build:Dec 16 2010 13:45:51 

No Error

Alt version: Page 1

Canon Powershot A1200 
Firmware Ver GM1.00C (
Adj Ver.005.007
Serial No. 28806201xxxx

Alt version: Page 2

Canon Powershot A1200 
Build: Jun 10 2011 14:56:46

For Developers[]

LED addresses[]

AF led : 0xC022000C

Orange LED : 0xC0220010

Green LED : 0xC0220014

Firmware Dumps[]


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

  • Firmware 1.00A (by praveen_sb, dumped with CBasic udumper)
  • Firmware 1.00B (by photongraph)
  • Firmware 1.00C (by zachalope, dumped with Universal dumper script)[1]


Porting process & links[]