PowerShot SX220 HS - Porting Thread

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Re: PowerShot SX220 HS - Porting Thread
« Reply #460 on: 24 / January / 2012, 07:26:38 »
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Before I start I'd just like to say how great the CHDK software is.  I am however having a problem with the RAW files that the software creates on the sx220.  Basically,  Although with a bit of fiddling I can open the DNG files, the DNG images look dark and of much lesser quality than the eqivalent canon standard jpg.  I have tried following 'msl's advice (above) using DNG4PS2 but the images again appear dark and fish-eyed.  Is the difference in quality likely to be correction software run by the camera or am I doing something wrong with the raw files?  Any help much appreciated.

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Offline lpf

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PowerShot SX220 Firmware 1.01C
« Reply #461 on: 24 / January / 2012, 14:06:45 »
Hello
I just want to ask if someone is currently working on this firmware version (1.01C). I'm asking, because I have not the expected results (using the 1.01B version) regarding mainly shutter and aperture overrides.
If I am supposed to do something from my side, it will be a pleasure to help.
Thanks.

Re: PowerShot SX220 HS - Porting Thread
« Reply #462 on: 01 / February / 2012, 03:51:18 »
Hello everyone!
I just bought an SX220HS a month ago. It has 1.01C FW. Can I run 1.01B CHDK FW on it?
Thanks
« Last Edit: 05 / February / 2012, 04:38:35 by gerg0 »

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #463 on: 03 / February / 2012, 04:53:40 »
1.01C owners please upload the firmware dump using the Universal dumper script from the CHDK wiki page and post the link. Thanks.


Re: PowerShot SX220 HS - Porting Thread
« Reply #464 on: 04 / February / 2012, 08:22:16 »
I managed to download the firmware of my sx220hs, 1.01C  :)
Here's the link to the file:
http://www.box.com/s/xh3da07sxyjz6403dapq

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #465 on: 04 / February / 2012, 16:08:34 »
Thanks. I made a hex comparison between 1.01B and 1.01C and both firmwares are exactly the same except the version name and build date.

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Offline lpf

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Re: PowerShot SX220 HS - Porting Thread
« Reply #466 on: 05 / February / 2012, 03:49:23 »
Hi funnel
after testing I cannot override shutter speed (need to have speeds up to 1/10000). I have the 1.01C version and use 1.01B CHDK. Where to look for? The aperture can be closed up to F11 sometimes, but the shutter up to 1/3200 only.
Thanks

Re: PowerShot SX220 HS - Porting Thread
« Reply #467 on: 05 / February / 2012, 06:50:48 »
need to have speeds up to 1/10000)....  but the shutter up to 1/3200 only.

Do you think the 1/10000 is 3x faster than the 1/3200 ?

It is almost certainly hardly any faster.



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Offline lpf

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Re: PowerShot SX220 HS - Porting Thread
« Reply #468 on: 05 / February / 2012, 07:04:00 »
In the past I used speeds up to 1/40000 (freezing action with flash in black environment). So in my experience, there is a difference between 1/3200 & 1/10000 or 1/20000. Thats the reason I bought this camera, to use it with CHDK. I all want to know if it is possible, with my camera...

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Re: PowerShot SX220 HS - Porting Thread
« Reply #469 on: 05 / February / 2012, 13:51:30 »
How did you determine the max shutter speed? The EXIF data doesn't get updated below 1/3200s. According to my tests by looking at the histograms the fastest shutter speed is about 1/25600s.

 

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