Note: it will not run on DSLR cameras. What can it do? CHDK enhances the capabilities of your camera in a non-destructive, non-permanent way. These new features are accessed through CHDK-specific menus, rather than the default camera menus.
As CHDK is continually evolving, new features are added as they are developed. Updating occasionally will ensure you have all the latest features for your camera.
How is all this possible? Firstly, by the skill, persistence, and generosity of the developers, and other contributors to the CHDK project. Secondly, in the same way that your computer hardware runs an operating system, such as Windows, Mac OS, or Linux, your Canon camera also has an operating system in it.
Does CHDK permanently alter the camera? CHDK is simply software. Just like a computer, when the camera is turned off all the software disappears from memory until it is turned on again and CHDK is reloaded.
Also like some software, there is an option to automatically start CHDK when the camera starts "booting".
How does CHDK get on the camera? How does CHDK software get copied to the flash card? A card reader is used to connect the SD flash card to your computer. Once connected, the SD flash card appears like any other hard drive on the computer. Your printer may contain a usable card reader. Card readers are fairly inexpensive, and can simplify transferring of files, and thus files can be transferred via USB.
Where can CHDK software be downloaded? Many thanks go to all the contributing writers over the past few years, please see Acknowledgements at bottom of this page. The information offered is for experimental application. CHDK is experimental! CHDK comes with no warranty for any use - use it at your own risk. Before downloading and using the CHDK software, careful consideration should be given to the following:.
The short answer: It is unlikely, but theoretically possible. CHDK is created by reverse engineering an undocumented system that directly controls the hardware. Because of this, it is impossible to be certain that it is completely safe. For example, it is possible to command the lens hardware to move when the lens is closed. It is worth noting that neither of these cases has resulted in actual damage, and both would require direct input from the user. If you are concerned about this, the risk can be minimized by avoiding untested developmental builds such as test builds posted on the forum and being selective about what scripts you run.
One more thing: There are tens of thousands of satisfied users all around the world enjoying the benefits of CHDK. See also GPL license information below. Once CHDK is installed, you will need to start it on your camera. As explained earlier, CHDK does not actually change your firmware, so it must be started each time the camera runs.
Both methods are fully described on the Prepare your SD card wiki page. Use this method to load CHDK once, manually. If this method is used, CHDK will be unloaded when the camera is powered off, and you will need to repeat the steps each time you want to use it.
Despite using the Canon Firmware update menu, it does not update the firmware. The camera is now loaded with the added functions provided by CHDK. Simply start taking photos or video. Use this method if you want CHDK to run every time you start your camera. See Prepare your SD card for details. After the card is prepared, CHDK will load automatically when the camera starts if the card is locked.
To disable CHDK temporarily, just unlock the card. When the splash screen is cleared, CHDK will be running in the background. Some features are enabled by default, for example, the battery and memory indicators.
However, most features are inactive by default. For example, pressing the FUNC. The actual button to use depends on the camera model and how it was configured for CHDK operation.
If it is not, please feel free to update the information on that page. You can now use the camera to take photos or video, and its operation will be changed by the options you set in CHDK And one final point: you must also switch the camera from playback mode to shooting mode to take pictures.
Use the Directional buttons to navigate the Menus. SET button will select the highlighted menu option. Pressing the DISP. Pressing the MENU button will exit the current operation. When entering numeric values in menu item fields, your camera's zoom lever can be used to move between input digits. It is not necessary to press the right arrow button times to set a value of Simply press the zoom lever to the left twice and then the right arrow button once.
These are specifically those functions related to exposure and focus settings. Also remember to uncheck the " Disable Overrides on Startup " menu item if you want to retain your override settings after a restart. Please note that the actual speeds available are dependent on the camera used and other conditions such as the aperture setting.
Note that Tv override is enabled when the selector box beside the Value field is enabled. Simply select the desired setting and the camera will use that setting in all auto and manual modes. Please note that the actual aperture values available may depend on the camera's construction and zoom position. Select the desired ISO setting and the camera will use that setting in all auto and manual modes. For cameras without manual focus capability, the Override Subject Distance setting can be used to manage the camera's focus setting.
Enter the focus distance in mm from the lens. Depending on camera, you may need to activate AF lock for subject distance override to work. SET to select one. After an image is captured, indicates how long to delay the execution of the next script command. A value of 0 executes immediately. A value of 10 executes the next script command one second after capture. Hint : remember these setting if you see your camera operating by itself after it is turned on.
If it detects an error condition while running, setting this value will cause the script to restart rather than halt. Generally, its not a good idea to leave this feature enabled. Each script may have as many as at least 52 user changeable parameters that can be set from the Script menu down at the bottom. Scripts written in uBASIC are limited to 52 parameters corresponding to the variables A-Z, a-z while Lua scripts can have many more only limited to a large number determined by an internal file header size.
Selecting this menu item causes those values to reset to the default values specified in the script header. To accommodate different shooting scenarios, CHDK allows up to 10 different sets of user parameters to be stored and reused each time the script is loaded. Setting this value to Default will cause the default values specified in the script header to be when the script is loaded.
When set to "On", the current values of the script parameters perhaps adjusted by the user will be stored in the parameter set specified above. When set to "Off", parameter values are "locked" and will not change. More information about scripting can be found here : Scripting Cross Reference Page. This menu allows you to configure the CHDK On Screen Display OSD through the selection and positioning of on-screen information and icons showing the current state of camera operations.
Other operating display functions can also be configured with this menu and the menu allow access to the setup of the CHDK USB remote control. Displays the Override, Bracketing, and Override Disabled settings in their own positionable information area.
Note: Not all models have a separate temperature sensor for each component, and due to differences in design, values reported by different models may not be directly comparable. Displays either a colored icon or a text string when the USB Remote is enabled. The Depth Of Field Calculator displays 5 distances in meters….
Use EXIF subj. The following 5 settings determine which DOF values will appear. Do not confuse this with Playback mode. Review mode is when the last taken photo is temporarily being displayed as you hold down the shutter-button and press SET to lock it into Review Mode or when you have the Canon's Menu "Review" options turned on.
This allows you to keep the on-screen grid and other settings visible when reviewing the photo to see if you got the framing or other settings as you had intended. The on-screen position of OSD items can be rearranged to suit personal preferences and to avoid the Canon items on the display. When a feature is selected you use the Set button to move between icon outlines and the rocker switch to move the selected icon around.
A red highlight display at the top or bottom of the screen gives the name of the icon being moved and its screen position in X, Y format. You can change the resolution of movement of the icons between course and fine using the DISP key.
You can also change the font size of the selected item with either the zoom keys or the shutter "half press" button. Change any of the display colors for all the text and icons. If you don't change them they will remain as their defaults. There are opaque colors and transparent colors, and also some "special effect" colors.
Note that record mode and playback mode use different color tables. So it may happen that you pick a nice color in playback mode, and in record mode it will look totally different.
But there are also colors which will stay the same in both modes. Shows the current color space in the current shooting mode. Use the cursor keys to scroll around to any color - the hex value of that color is displayed at the top of the display. CHDK offers the ability to define a customized menu of the things you use the most.
This menu can contain menu entries from other menus, the name of favorite scripts to load and even loadable code modules. When enabled, the GPS functionality provided with these camera allows tagging of location information into image EXIF information but little else. CHDK adds additional features to allow navigation using the camera, including a visual compass and the ability to navigate to a "home" location or a location tagged in an image.
CHDK also adds a trip logging function and the ability to tag photo information at a later time if current GPS data is not available when an image is captured. CHDK supports the use of an inexpensive shutter remote, allowing the camera to shoot when a remote switch is pressed. This has many applications, but is expecially useful with a tripod mounted camera to minimize vibration, or for syncing two cameras to shoot at exactly the same time for stereo photography.
The Miscellaneous Stuff menu contains the various CHDK features and functions that don't really belong in any of the other menus. These functions are usually related to the mechanics of how the CHDK program loads and operates. Functions related to actually taking photographs can be found in the other CHDK menus. Pressing FUNC. SET over certain type of files results in special action only available when the file browser is started with the "File Browser" menu item :.
The actual options available are context sensitive - they change based on the currently selected item in the pop-up file browser windows. To conserve memory, many CHDK features are implemented in modules. This utility can be used to read a text file stored on the SD card. Very convenient! Various functionalities related to EyeFi cards. If the card in your camera is not of the Eyefi type you will see this menu but every action will result in some sort of error.
Usage Tip: Some cameras e. G12 and G15 have built-in support for these cards. With these cameras you may experience conflicts when using these menu items. The recommended approach is to first disable the card's wifi in the Canon's firmware, then force it on using the CHDK. For a complete list see Eye-fi connected cameras. Queries the card for wifi networks visible at the current location.
SET to chose a network to register on. A textbox will allow you to enter the password. Use half-shoot to change the character set, MENU to switch input mode.
Shows the list of the networks currently configured in the card. SET you can delete a network. You will be prompted to confirm the deletion.. When connected, this cable allows transferring images from your camera directly to your PC. The protocol used to implement this capability is called Picture Transfer Protocol. Complete camera control, file browsing, and "live view" in real time of the camera's LCD are all supported.
A note on the CHDK xxx xxx. If these file are corrupted for some reason, it can cause weird behavior with CHDK camera settings. To test for this, find and rename the files so that new ones will be created at the next start-up.
If this eliminates the erratic behavior the old files should be deleted, even though all your personal settings will be gone. CHDK might be one of the most innovative improvements to any camera that has ever come along since the beginning of photography. Experimental - No warranty. 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. Enables time lapse, motion detection, advanced bracketing, and more. Get it from the Downloads page. Use this thread for bug reports. Users are encouraged to test, visit this thread for details. Report bugs in the forum 11 15 CHDK 1. But mostly the CHDK devs are chilling after the release of 1.
A big update with lots of nice stuff for CHDK users. Get it from the autobuild. Updating to this version is recommended. In order to allow manual control of this channel, we need to change an important parameter in Mission Planner.
Find the parameter that corresponds to your camera control channel. Set this parameter to Manual whenever you want to control your camera using your RC transmitter; set to Disabled when you want the autopilot to control the camera automatically.
Select Write Params before disconnecting your autopilot. Connect either of the pin connectors on the CHDK cable to the autopilot output pins corresponding to your camera control channel black cable on the outside. For example, we connected our CHDK cable to the channel 7 output pins on the autopilot. Make sure no input pins are connected to the autopilot for that channel. However, this pin outputs only 3. This section defines the parameters that will be used later by the functions.
These three parameters specify zoom levels, so if you wanted to change a zoom level, you could easily do so by entering a new value after the variable following default. This is the main body of the script. This is where the script defines what each function will do. For example, you can add a shoot command to ch1down or change one of the zoom level parameters. Testing the CHDK cable will ensure that our camera controls execute as expected and is a great opportunity to test for potential noise created by your equipment setup.
This setting must be enabled to allow communication with the CHDK cable. Test the result of each switch position. The resulting behaviors should reflect those listed in the previous step.
Observe the USB pulse values output to the camera display, and compare them with the ranges show in the code. If you encounter problems, see the Advanced Topics section below for additional testing and troubleshooting information. Mission Planner allows you to program servo outputs as events at waypoints. By using this feature, we can add a command to output a PWM value corresponding to a switch position and function after the plane achieves each waypoint.
This tells the autopilot that this command means output to a servo.
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