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Hacking Fuji cameras to save in RAW
This article tells of how to make lower end Canons save in RAW format. I have FUJI s5800. Anyone know how to modify this one to save in RAW format? That article has a wikipedia entry, which has a wiki entry for a site and download. CHDK is the program, here is the link:
The processors in the Canon and Fuji are different, so the same files won't work. However, the menus and interfaces seem very similar, as if the same programmers are doing the circuit in Japan...
Would love for Chieh Cheng to respond, to my email too

Fri, 25 Jul 2008 10:11:01 +0000

Hi Sunny. I'd love to help you. Unfortunately, I don't have any Fuji digital cameras. So I don't even know where to start. :-(

Probably the first thing to do is to find out what kind of processor chips it uses. Then start talking about it on forums and with other people. Eventually you'll be working someone that has enough knowledge about the processor to talk to it.

Chieh Cheng
Fri, 25 Jul 2008 17:19:02 +0000

Fuji cameras have the RP (Real Photo I,II or III) processor. Firmware updates are available on their site. But how to disassemble or otherwise get information on the software inside these cameras?

Fri, 25 Jul 2008 18:44:31 +0000

I just read someone's post in the "nikon's OS" thread that the Nikon D70 firmware runs on the Fujitsu RealtimeOS FR. So I'm wondering if the Fuji digital cameras do the same. The OP's comment mentioned that you can see it in the firmware using a hex editor.

Chieh Cheng
Tue, 29 Jul 2008 16:51:37 +0000

Thanks for that update. I'll take apart the firmware download available for the S5800 on the fuji website and see who makes the firmware.

Sat, 02 Aug 2008 09:15:27 +0000

I found this, can be useful
i open the firmware update file in an hex editor and found the same
LENGTH=3778448 SG2A2 VER=V2A2-75 DVR=1.01 SUM=383221140 NLIPI
I read in some topic of chdk forum also this:,399.msg2891.html# . . .
may be can help to start. i have a S8000fd and can help in some testing.

Flavio Camus
Tue, 13 Jan 2009 04:33:28 +0000

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