Please help with older Powershot models

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Iliah Borg Forum Pro • Posts: 26,629
Please help with older Powershot models

We are working on extracting  white balance values from CRW files for the following Canon Powershot models:

G3, G5, G6, S45, S50, S60, S70, Pro1

Raw converters than can use those values for the particular camera instead of "generalized" hard-coded converter tables.

These cameras can be set to Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent High, Flash, Custom (1 or 2) white balance, some also have Underwater WB setting.

We already know where the section with the table of values for the settings is located - it's in tag 0x0032, with offset 0x50. What is not known is the sequence in which the settings are arranged and the exact number of the elements in the table for particular camera model.

If you have one of the cameras listed above, and wish to help, please:

- set your camera to record raw (CRW);

- manually set the camera to each of the available white balance presets;

- take a shot with each preset (light in the scene and the subject are not important);

- upload the resulting CRW files to Dropbox, GoogleDrive, or any service you prefer;

- drop an e-mail with the link to info@libraw.org

If you already have some CRW files taken with those presets, even if it is not a full set, we will be happy to use those (Canon software should show what preset was used as white balance).

We never share any files / shots unless explicitly asked to do so.

Thank you for your help.

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