17

• Disable RAW @ EV Bracketing

Enable [•] / Disable [ ]

Disable RAW file-saving when you are using any of the high-speed bracketing features.

•

Disable RAW @ Edgeoverlay

Enable [•] / Disable [ ]

Disable RAW saving while using Edgeoverlay.

•

Disable RAW @ Auto

Enable [•] / Disable [ ]

Disable RAW saving while using Auto shoot mode.

• Warn when Exception?

Enable [•] / Disable [ ]

Displays a "RAW Disabled" OSD warning in a selectable color when any of the RAW File- Saving Exceptions are enabled and RAW file-saving is turned on.

Dark Frame Subtraction < Raw parameters < Main Menu

Controls the application of the Dark Frame Subtraction feature of your Camera onto the RAW file. Dark Frame Subtraction is a function used to reduce the effects of sensor noise when the exposure time is 1.3 seconds or longer.

•Auto – Performs a DFS on exposures 1.3 seconds or longer.•Off – Never performs a DFS.•On – Always performs a DFS.

By always performing a dark-frame subtraction the noise caused by the hot-pixels will be removed from any image. There will be a slight increase in processing time.

Only First RAW in Series

Enable [•] / Disable [ ]

When shooting in continuous mode, this will only create a RAW capture for the first image. Subsequent images will not have RAW captures. This allows rapid continuous shooting.

RAW File in Dir with JPEG Enable [•] / Disable [ ]

Saves RAW files in the same folder as the JPEG files. If disabled then RAW files are always saved in the 100CANON folder.

RAW File Prefix [CRW_, SND_, IMG_] < Raw parameters < Main Menu

CHDK lets you name your raw files with any combination of the standard prefixes IMG_, CRW_, SND. If you are going to process the RAW files with DNG4PS-2 then setting a prefix of IMG_ will allow DNG4PS-2 to retrieve EXIF data from the accompanying JPEG.

RAW File Extension [.CRW, .CR2, .THM, .WAV, .JPG]

Set the extension to be used on RAW files. so the files are visible when you connect the camera via USB.

RAW subtract extension

[.CRW, .CR2, .THM, .WAV, .JPG]

Using more than one extension with the same prefix can cause a problem with USB listing.

See:-

http://chdk.setepontos.com/index.php/topic,2045.msg18862.html#msg18862 Thanks reyalp.