S5IS - Ported!

[goodgnus]

What does this mean for other DRYOS cameras, such as the SD950IS?

Would love to run CHDK...

[abramburici]

Hi folks,

Got the 1.01b firmware last night, great work!
I'm completely new to this kind of thing so I still don't fully understand what I am doing, nevertheless I stumbled upon several nice option such as raw, shutter speed and aperture overriding. I can't seem to find the ISO overriding option though, where is it and what's the name?
I understand it's not possible to get anything higher that 800, but that's not what I am looking for anyway. My idea was to use ISO even lower than 80 (e.g. 50) in combination with long exposure times (> 15 sec) in order to get almost noise-free night shots. Not sure it would work though...
Oh, and speaking of long exposures, I tried 65 sec just for the goof and I noticed something strange.. the top-left of the image appears blue even though there's no blue light source/object there. Is the S5 sensor that bad?

Cheers

Alan

[fe50]

Hello & welcome Alan,

I can't seem to find the ISO overriding option though, where is it and what's the name?

You'll find it in the CHDK menu "Extra Photo Operations" --> "Override ISO value"

Hint: quote  from the wikia, Allbest Firmware Usage:
"When changing values in any CHDK menu options or script-variable selections you may use the zoom-rocker toggle to quickly switch between changing the 1s, 10s, 100s, 1000s, and 10,000s unit. A red-highlighted indicator will appear in the upper left of your EVF/LCD to let you know which unit you are changing."

Oh, and speaking of long exposures, I tried 65 sec just for the goof and I noticed something strange.. the top-left of the image appears blue even though there's no blue light source/object there. Is the S5 sensor that bad?

I have no S5, but this seems to be sensor noise, caused by heat parts near the sensor...

On exposures > 1 seconds normally a dark frame subtraction is done (by the Canon firmware), you can control this in the CHDK menu "RAW Parameters" --> "Noise reduction", it's for RAW and JPG files, see Wikia: RAW parameters menu.

Perhaps one of the S5 users can be more helpfull...

[DataGhost]

Completely normal indeed, crappy build quality. You should see the *REAL* amount of hotpixels, the camera already does a lot of hotpixel remapping even without CHDK. At long exposures, the upper-left corner turns blue/purple-ish as with almost every CHDK-compatible camera, as far as I've seen. If you enable noise reduction, it'll do a darkframe subtraction which does a decent job at cancelling it out but you'll lose a lot of detail because the noise is so extreme.

[abramburici]

Hi,

The noise reduction thing indeed works, thanks for the tip.
Now regarding the ISO overriding, I still can't find it, sorry... I mean I can't find extra-photo operations either.

[fe50]

...Now regarding the ISO overriding, I still can't find it, sorry... I mean I can't find extra-photo operations either.

Which version (or name of the download file) you are using ?
Looks like you do not have the Allbest version; the latest Allbest Autobuild (beta version) you'll find here: Autobuild CHDK version.
(In the Allbest CHDK "Extra Photo Operations" is the first entry in the menu...)

[crazyfred02]

Hello!
I am new to using chdk firmwares but I LOVE it!
However I have a small problem that deals with bracketing.
I have figured how to get it working with EV mode, which is what I wanted, however, when I select +/- and put the aperture at 5.0 I get approx. 11 images but a lot of them are taken at the same fstop. Also when it gets to the last setting (highest fstop) it doesnt stop automatically as I read it should..
I am wondering if this could be a bug..
Hope to get a response from someone... it would be great!