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CHDK - Unleash the POWER in your Canon PowerShot!

What is CHDK?

Canon Hack Development Kit;
Temporary – No permanent changes are made to the camera.
Experimental - No warranty. Read about the risks in the FAQ
Free – free to use and modify, released under the GPL.

Features

Professional control - RAW files, bracketing, full manual control over exposure, zebra mode, live histogram, grids, etc.
Motion detection - Trigger exposure in response to motion, fast enough to catch lightning.
USB remote - Simple DIY remote allows you to control your camera remotely.
Scripting - Control CHDK and camera features using ubasic and Lua scripts. Enables time lapse, motion detection, advanced bracketing, and much more.
More - read the Manual & explore this wiki.

Install Guide
New to CHDK? Start here!

Download
Grab the latest build, updated nightly

F.A.Q.
Frequently Asked Questions

Forum
Share results and ask questions

IRC
Chat with other users. Channel: chdk

TWITTER
Follow us

News / History

(2011 11 29) First Alpha release for the ELPH300/IXUS220 is available from the Autobuild server.
(2011 11 14) Fully functional Alpha release for the SX150IS is available from the Autobuild server.
(2011 09 11) Beta releases for the SX130IS , SX220HS & SX230HS and a full release for the G10 are available from the Autobuild server.
(2011 07 28) Beta releases for the Powershot G10 in all firmware versions are now available (finally).
(2011 07 24) Beta release IXUS100-SD780 with firmware 1.00b is now available
(2011 07 17) Beta release IXUS200-SD980 with fimware 1.01d is now available.
(2011 06 25) Beta releases for S95 1.00K and IXUS200/SD980 101c are now available.
(2011 06 17) A beta release A490 1.00F is now available
(2011 06 05) A beta release for the three firmware versions of the A495 is now available
(2011 02 21) SDM 1.85 released
(2011 01 07) The following new ports now are available from the Autobuild server:
Ixus95 (SD1200) 1.00C, G12 1.00C & 1.00E, SX30 1.00E, 1.00H & 1.00L
(2010 12 29) Lots of new beta versions are out: SX210 1.00C, SX30 1.00E & 1.00L, SD940_Ixus120 1.02C & 1.03C, SD4000_Ixus300 1.00D
(2010 12 28) DNG support for the G9 added
(2010 12 02) Multi partition support added for the A610
(2010 10 30) A beta version for the S95 with firmware 1.00e is online in the forum, thx waldo
(2010 10 24) The IXUS 900Ti/SD900 with fw version 1.00c is available from the DL page, thx pixeldoc2000
(2010 10 03) SDM 1.84 released
(2010 08 22) Porting for some new 2010 cameras started: SX210, SD4000, A3100
(2010 08 21) New beta versions are available for the following cameras: A430, SX20, SD900
(2010 08 17) 2010 model cameras SX210, IXUS130/SD1400, IXUS 300HS/SD4000, A3100 dumped with help from Canon Basic dumper.
(2010 08 13) Canon Basic scripting reverse engineered by corelabs forum link
(2010 06 27) A running beta version for the D10 is available: forum link
(2010 06 07) CHDK for the Ixus85/SD770 is online -> Downloads
(2010 06 04) New ports are in the pipeline, will be released soon (beta versions are already available from the forum): SX20, D10, Ixus85/SD770
(2010 04 26) CHDK (beta) for the PowerShot S90 with firmware versions 1.00c, 1.01a, 1.01b and 1.01c is available from the Download page (thx ERR99!)
(2010 03 28) The A480 1.00B port is in the trunk now: Download page (thx ewavr !)
(2010 03 21) CHDK for the G11 with fw 1.00L is out ! -->Downloads...
(2010 03 13) The IXUS100 / SD780 with fw 1.00C is in the trunk now, binaries are available from the DL page (thx HarpoMa !)
(2010 03 07) Ewavr ported the A480, a beta for fw 1.00B is available from the forum
(2010 01 31) We have 5 new CHDK family members in the trunk now:
→ the G11 (1.00f, 1.00j and 1.00k) (thx ERR99 & Microfunguy) and
→ the IXUS 90 / SD 790 (1.00c and 1.00e) (thx ehmu)
(2010 01 17) A beta version for the G11 with firmware 1.00J is available from the forum (thx ERR99 & Microfunguy)
(2010 01 11) Beta versions for the IXUS 90 / SD 790 with firmware versions 1.00C and 1.00E are available from the forum (by ehmu)
(2009 12 30) CHDK for the IXUS 90 / SD 790 with firmware version 1.00D (BETA) is available from the DL page (thx to ehmu)
(2009 12 24) It's that time of the year again... the CHDK team wishes everybody a merry christmas and a happy new year! thanks to all contributors :)
(2009 12 13) SDM 1.82 released
(2009 12 3) Build 854 UBASIC bug nested if bug fix may break some existing scripts, see CHDK forum
(2009 12 2) Support for script control of play/record and capture mode was added in CHDK version 0.9.9 ([1])
(2009 11 13) A patch/diff to add A1000 to the trunk is available from the CHDK forum
(2009 11 08) CHDK for the SX10 firmware version 1.00C, 1.01B, 1.02B, 1.03A are available from the DL page
(2009 10 27) A beta version for the SD980 (Ixus 200) is available from the CHDK forum
(2009 09 26) Beta builds for SX200 with firmware 1.00C and 1.00D are now available from the Autobuild server ↑
(2009 09 13) The A2000 with firmware 1.00C is now available from the Autobuild server ↑
(2009 09 01) A beta version for the A2000 with fw 1.00C (by iax) is available ([2])
(2009 08 21) reyalP published 2 new CHDK ports: SD990 / Ixus 980 fw 1.01b and SX1 fw 2.01a
(2009 07 30) SDM 1.81 released - Serial communication with microcontrollers, new uBasic commands to start/stop actions at a set time & much more...
(2009 07 18) CHDK used in a professional music video by arman bohn ! (forum link, the album, his blog, some scripts)
(2009 07 12) New CHDK beta versions are available from the DL page: SX10 1.03A and A470 1.00e
(2009 07 04) CHDK for the SX10 firmware version 1.01B and 1.00C (BETA) are available from the DL page
(2009 07 04) CHDK News now on twitter! Details about what exactly ur gonna expect will follow later (CHDKnews@Twitter)
(2009 06 12) CHDK for the SX10 firmware version 1.02B (BETA) is available from the DL page
(2009 06 04) CHDK for the A470 firmware version 1.01a is available from the DL page

Basic Articles
The basics: how to install and use the CHDK firmware CHDK In Brief - What is CHDK? How do I get started? CHDK for Dummies - The very first steps. FAQ / Instructions - Lots of good stuff here. (Installation Instruction,Supported Camera Models,Troubleshooting etc.) Mac FAQ Answers and instructions for Mac users. CHDK User Manual - Learn the <ALT> menu items and how to use them. CHDK User Quick Start Guide - A printable user manual in PDF format for offline viewing. (Last update January 3rd 2012) CHDK Installation Guide - A printable installation guide in PDF format for offline viewing. Supplement to the CHDK User Quick Start Guide. (Updated May 2010) Articles in other languages: → Bulgarian → Chinese → French → German → Italian Camera Features Chart - Cross-reference chart of the new camera capabilities with CHDK by camera model. (User input still needed to fill in the blanks.) Scripts - Unleash the FULL power of your camera. Don't miss the user-written scripts and scripting tutorial section! Some features of CHDK, like USB-Remote and Motion-Detection are impossible to use without them. CHDK is a system of programming and scripts that run within it. You need both, CHDK and scripts! CHDK interface Languages Cheat sheets
Advanced Articles
Tutorial: RBF fonts Tutorial: DoF Stacking Grid Tutorial & User Contributions Benchmark results of various SD cards HOWTO: Calibrating the distance of the A620 For Developers Software - Overview / Link list ^New !
Links
LINKSEdit If you are interested in the History of CHDK or want to see some interesting links, head on over to the LINKS page. That page should be updated with all the latest and links and stories. Other InfoEdit Bug tracking and feature requests with Mantis CHDK change log / timeline: Changelog, SVN timeline Raw comparison, original "Raw enabler": digicanon.narod.ru USB Specifications: [3] Forum DiscussionsEdit Got a problem or a question? Please check the FAQ first, but if you're still stumped, try one of these forums. Note: The new CHDK Forum is the most active of the English forums. Dpreview's forum used to be used most in the past. There you'll find the most extensive (English) history of CHDK's development. An active CHDK thread usually still exists at dpreview (thanks, 'zdravko'!) but the dpreview discussions are rapidly losing favor to the new CHDK Forum. English: The main "CHDK Forum", dpreview.com, s3users.com, TX-1 users CHDK thread Finnish: Astronetti German/Deutsch: CHDK-Forum, zonebattler's homezone, Greek: Wikia forum Italian: HWUpgrade Forum Japanese: hobby10.2ch.net Portuguese: digiforum.com.br Romanian: softpedia.com, fototarget.ro by ursamajor Russian: forum.ixbt.com - 1, 2 French/Français: CHDK sur Hardware.Fr CHDK sur Planete-powershot.net Polish/Polski: canon-board.info, CHDK Motion Detection English: dPreview History: 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 Persian: Can i use RAW format in S3 IS? Persian 2: CHDK & All about it Chinese: Discussions on forum.Xitek.com Other WikisEdit Japanese: wiki.fyi.jp, Wikia Japanese version Russian: tools.assembla.com Web-sitesEdit Russian chdk.clan.su Russian (CHDK+ with timestamp) canons5is.clan.su

Articles by categories, Recent wiki changes, Recent changes in discussions, Map of visitors

Supported Cameras
Read the FAQ and Firmware Usage articles before downloading appropriate version. The autobuild hosts these versions: Camera: Firmware Versions A450: 1.00d A460: 1.00d A470: 1.00e, 1.01a, 1.01b, 1.02c A480: 1.00b A490: (beta) 1.00f A495: (beta) 1.00d, 1.00e, 1.00f A530: 1.00a A540: 1.00b A550: 1.00c A560: 1.00a A570: 1.00e, 1.01a A590: 1.00e, 1.01b A610: 1.00d, 1.00e, 1.00f ¹ A620: 1.00f, 1.00e ⁹ A630: 1.00c A640: 1.00b A650: 1.00d A700: 1.00b A710: 1.00a A720: 1.00c A2000: (beta) 1.00c, 1.00b (with 1.00c version) D10: (beta) 1.00a, 1.00b (with 1.00a version) ELPH300/IXUS220: (alpha) 1.00c, 1.01a, 1.01c, 1.01d (with 1.01c version), 1.01e (with 1.01c version) S2: 1.00e, 1.00f, 1.00g, 1.00i ² S3: 1.00a* S5: 1.01a, 1.01b S90: (beta) 1.00c, 1.01a, 1.01b, 1.01c S95: (beta) 1.00e, 1.00h, 1.00i, 1.00k G7: 1.00e, 1.00g, 1.00i, 1.00j G9: 1.00d, 1.00f, 1.00g, 1.00h, 1.00i ⁷ G10: 1.02a, 1.03b, 1.04a* G11: (beta) 1.00f, 1.00j, 1.00k, 1.00l, 1.00h (with 1.00j version) G12: 1.00c, 1.00e, 1.00f, 1.00g SD30 (IXUS izoom): 1.00g SD300 (IXUS 40): 1.00j, 1.00k SD400 (IXUS 50): 1.01a, 1.01b SD450 (IXUS 55): 1.00b, 1.00c, 1.00d SD500 (IXUS 700): 1.01a, 1.01b SD550 (IXUS 750): 1.00f, 1.00g SD600 (IXUS 60): 1.00a, 1.00d SD630 (IXUS 65): 1.00a SD700 (IXUS 800): 1.00b, 1.01b, 1.01a ³ SD750 (IXUS 75): 1.00b, 1.01a, 1.01b, 1.02a* ⁴ SD770 (IXUS 85)* (beta): 1.00a SD780 (IXUS 100) (beta): 1.00b, 1.00c SD790 (IXUS 90) (beta): 1.00c, 1.00d, 1.00e SD800 (IXUS 850): 1.00d, 1.00e ⁵ SD850 (IXUS 950): 1.00c* SD870 (IXUS 860): 1.00c SD880 (IXUS 870): 1.00e, 1.01a, 1.01b SD890 (IXUS 970): 1.00b, 1.00c, 1.00d, 1.00f SD900 (IXUS 900): 1.00c SD940 (IXUS 120): 1.00e, 1.01a, 1.02c, 1.03b, 1.03c SD950 (IXUS 960): 1.00c, 1.00d SD980 (IXUS 200): (beta) 1.01c, 1.01d SD990 (IXUS 980): 1.00e 1.01b SD1000 (IXUS 70): 1.00c, 1.01a, 1.01b, 1.02a ⁶ SD1100 (IXUS 80): 1.00c, 1.01a, 1.01b* ⁸ SX1* (beta): 2.00h, 2.01a SX10: 1.00c, 1.01a, 1.01b, 1.02b, 1.03a SX100: 1.00b, 1.00c SX110: 1.00b SX20: 1.00f (beta), 1.02b, 1.02c ¹⁰, 1.02d* SX30: 1.00e, 1.00h, 1.00l SX200IS: 1.00c, 1.00d SX220HS: 1.00a, 1.01a, 1.01b SX230HS: 1.00c, 1.01a, 1.01b TX1: 1.00g, 1.01b 1 - 1.00d with CHDK version for 1.00e 2 - 1.00i with CHDK version for 1.00g 3 - 1.01a with CHDK version for 1.01b 4 - 1.01b with CHDK version for 1.01a 5 - 1.00d with CHDK version for 1.00e 6 - 1.01a with CHDK version for 1.01b 7 - 1.00f with CHDK version for 1.00g and 1.00h with CHDK version for 1.00i 8 - 1.01b with CHDK version for 1.01a 9 1.00e is not compatible, update to 1.00f 10 - 1.02c with CHDK version for 1.02d → the autobuild already has these versions for download For the development status of not-yet-supported cameras, see For Developers.
Under Development
Check out the "For Developers" page to see what progress is being made to port CHDK to additional cameras and firmware versions. You'll also find articles describing the porting process there. (Maybe you'd like to help?)
Sample pictures
We couldn't have done it without CHDK... Lightning photography RAW HDR HDR Mosaic Unlimited DOF Timelapse movies High-Speed Shutter & Flash-Sync Facebook CHDK group 9,500+ World's-Best CHDK Photos Awesome Photography! How to upload a picture (See also)
Feedback
Ideas, Suggestions, Feature Requests uBasic Script command suggestions (A new section just for uBasic) Express your vote of THANKS!

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Links

LINKSEdit

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Supported Cameras

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Sample pictures

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