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PowerShot SX220 HS - Porting Thread

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #140 on: 12 / June / 2011, 06:24:57 »
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Did some tests and found out that PROPCASE_ISO_MODE 0 in manual mode just sets the iso to 100 and not to auto like it should.

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #141 on: 12 / June / 2011, 06:50:48 »
A new feature I found out a few days ago and forgot to share. I don't know, maybe this is a common behaviour in other cameras that I didn't found out yet. I found that the ND filter can be applied not once, but twice or more times with this trick:

- turn on ND filter
- go in video record mode
- press right so that the exposure adjust option appears
- now every half shutter press doubles the ND filter dimming

Now we can do long exposures in the middle of the day.  8)

Re: PowerShot SX220 HS - Porting Thread
« Reply #142 on: 12 / June / 2011, 08:00:40 »
Found a bug, ISO override works only in AUTOISO mode. When in manual iso mode and shutter half pressed I see that the PROPCASE_ISO_MODE gets set to 0 but looks like this doesn't change the iso to auto mode.

@onesky
ISO is getting set ok, you probably forgot to input the factor value.
ISO was enabled (factor value 1), so i think it was because iso was set to 800 instead of "auto"

Re: PowerShot SX220 HS - Porting Thread
« Reply #143 on: 13 / June / 2011, 04:24:14 »
Hi

first of all, thanks for porting  :)
I am using beta2 on 220 and took some raw files, but I cannot open them. I tried all those standard progs like ufraw etc even picasa, none can read them. could anyone please give any hint, much appreciated!


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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #144 on: 13 / June / 2011, 04:36:29 »
Use DNG. I haven't found a program that opens the CRW files normally yet.

Re: PowerShot SX220 HS - Porting Thread
« Reply #145 on: 13 / June / 2011, 05:12:17 »
thank you
had at first trouble with the badpixel file but then it worked, fantastic dng files, very happy

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Offline reyalp

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Re: PowerShot SX220 HS - Porting Thread
« Reply #146 on: 13 / June / 2011, 12:53:44 »
Use DNG. I haven't found a program that opens the CRW files normally yet.
See http://chdk.wikia.com/wiki/Raw

You should not expect third party programs to understand CHDK raw from a new port.
Don't forget what the H stands for.

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #147 on: 13 / June / 2011, 16:07:25 »
I uploaded a new build beta3.

Fixed:
-raw develop, raw sum, raw average
-AV overrides
-corrected some errors in the stubs

I hope everything works. Test and report if you spot any strange behaviour.

Binary beta3 http://www.zshare.net/download/91399977e99766c5/

Source beta3 http://www.zshare.net/download/914000770ea91d6a/


Re: PowerShot SX220 HS - Porting Thread
« Reply #148 on: 15 / June / 2011, 04:49:01 »
Wow!! Nice progress, funnel. Although I was quite satisfied with the beta 1.1, as I was mainly interested in Raw and little else (well, that effective focal length ;) ).

I'd give a try to that beta 3, but these days I've used the camera a little and from Raw files this sensor it's quite good. Just to give you an idea, noise at ISO 800 and dynamic range at base ISO it's about the same than Canon S95 and better than Olympus XZ-1. Obviously these are different cameras (those fast lenses...), but I was very impressed.

I have nothing else significant to tell though... :( But what a heck of sensor...

Saludos!

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #149 on: 15 / June / 2011, 18:47:55 »
A new beta build is availabe for testing.

Fixed:
-Edge overlay and Zebra
-corrected a small error in stubs_min.S and the UI feels a little faster now

That's it, everything should work now, I hope.  8)

Binary beta4 http://www.zshare.net/download/9149166255d0474a/
Source beta4 http://www.zshare.net/download/914923100574705b/
 

« Last Edit: 15 / June / 2011, 18:58:11 by funnel »

 

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