Usb Remote Notes - Canon CHDK Quick Start Manual

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Instructions for BADPIXEL.LUA...
*
Q. When I select the script with Func./Set, nothing happens, How do I run it?
A. From fe50- Thanks
Ok, then follow me...
- power your camera on, half-press the shutter, to go to record mode
- press PRINT, then press FUNC/SET
- select "Load script from file", go 2 steps down to the TEST/ folder, press FUNC/SET
- select "BADPIXEL.LUA", press FUNC/SET
- start the script with the SHUTTER !
- wait until you see "press SET to save....."
- press FUNC/SET to store the badpixel.bin automatically in the right place
- press PRINT to leave the
- press MENU, go to the "RAW parameters", enter it with FUNC/SET
- enable the settings "Save RAW" , "DNG format" and "DNG file extension"
- press PRINT to leave the
Now RAW saving in DNG format is enabled, transfer the DNG files with a card reader...
See:-
http://chdk.wikia.com/wiki/Badpixel_removal
and:-
http://chdk.wikia.com/wiki/CHDK_firmware_usage/AllBest#Hot-Pixel_Removal_.
28Build_100-16_and_later.29
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USB Remote Notes

Enable built-in CHDK remote support
First, ensure you are running a reasonably up-to-date CHDK build. Some early builds did not support
remote shutter release control via USB.
Now enable remote support via the CHDK menu:
Parameters > Enable Remote
Note. If you enable the "Sync Delay" then the shutter will release after you stop the voltage to the USB
port. This was done because it was found they could sync the shutters on 2 cameras for stereo imagery
much better as the voltage dropped. (It can also be useful if your switch uses poor-quality contacts, in
which case the rise in voltage when it closes may not occur quickly enough to trigger CHDK's remote
function.) Under most single-camera circumstances, however, you won't need this unless you need to
sync the shutter release more accurately to your voltage trigger signal for specialized reasons.
USB Remote Cable
Using a USB cable, a low voltage power supply, and a push button switch, you can construct a device
that will allow you to remotely trigger the shutter of your CHDK-enabled camera. Remote triggers are
most often used in low-light situations when pressing the shutter button on the camera could introduce
picture spoiling camera shake, but may also be useful in other circumstances - for instance if you wish to
trigger the shutter with your foot, or with an electronic signal from another device.
In order to trigger your CHDK camera remotely, you will need to: connect a suitable triggering device to
the USB socket of your camera; ensure "Enable remote" to have been selected in CHDK; run a suitable
fe50
mode, press PRINT again to enter
<ALT>
mode again
<ALT>
Main Menu > Miscellaneous Stuff > Remote
mode
<ALT>