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What is best way to process A720IS CHDK RAW?

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Offline Jeff

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What is best way to process A720IS CHDK RAW?
« on: 16 / February / 2008, 05:29:29 »
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Can anyone tell me their favoured method. I can convert to DNG and then process in PS. I would have liked to have used a Raw processor directly. However I have gained the impression that CHDK RAW is 10 bit and this cant be processed directly. Has anyone got RAWSHOOTER hacked to deal with 720IS RAW?

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Offline whoever

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Re: What is best way to process A720IS CHDK RAW?
« Reply #1 on: 17 / February / 2008, 07:17:55 »
Yes, 10 bit and truly raw, just a dump of sensor data.

As of today, the only way is through DNG, using the last beta of ArtDen's DNG4PS-2, although the color profile that DNG4PS uses for this cam is not ideal, it is still being tuned.

The last revision of Dave Coffin's dcraw contains support of this sensor type but without a color profile, so it is not useful for anything but research purposes. Most "direct processing" tools actually use dcraw behind the scenes.

Re: What is best way to process A720IS CHDK RAW?
« Reply #2 on: 18 / March / 2008, 12:05:05 »
i think raw therapee works on a720is

Re: What is best way to process A720IS CHDK RAW?
« Reply #3 on: 18 / March / 2008, 15:25:57 »
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« Last Edit: 22 / April / 2008, 14:23:00 by Barney Fife »
[acseven/admin commented out: please refrain from more direct offensive language to any user. FW complaints to me] I felt it imperative to withdraw my TOTAL participation. Nobody has my permission, nor the right, to reinstate MY posts. Make-do with my quoted text in others' replies only. Bye


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Offline rhen84

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Re: What is best way to process A720IS CHDK RAW?
« Reply #4 on: 18 / March / 2008, 16:25:09 »
i think raw therapee works on a720is
Yes it works, but something its wrong with RT. When I load an A720 RAW file directly into RT, it can open it, but the result is not as I want. the image is wrong. When I convert it to DNG with DNG4PS-2 RT can open it correctly. So I suggest you convert A720 RAW files to DNG before use it.

Re: What is best way to process A720IS CHDK RAW?
« Reply #5 on: 18 / March / 2008, 21:37:16 »
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« Last Edit: 22 / April / 2008, 14:23:19 by Barney Fife »
[acseven/admin commented out: please refrain from more direct offensive language to any user. FW complaints to me] I felt it imperative to withdraw my TOTAL participation. Nobody has my permission, nor the right, to reinstate MY posts. Make-do with my quoted text in others' replies only. Bye

Re: What is best way to process A720IS CHDK RAW?
« Reply #6 on: 11 / April / 2008, 14:40:13 »
Does anyone have an example A720is raw file and jpg that they could put on the web somewhere?  I am about to receive my camera in a couple days and want to try out some of my raw conversion programs on it.

 

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