PowerShot SX220 HS - Porting Thread - page 24 - General Discussion and Assistance - CHDK Forum  

PowerShot SX220 HS - Porting Thread

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #230 on: 08 / July / 2011, 04:41:42 »
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Btw....is it possible to not save any .jpgs at all (just RAWs)? If yes: does this result in a speed increase and might allow for a burst of 3 RAW images (in burst mode)?

The only thing you can do is set the resolution to small(640x480) and quality to normal, you'll get 40kb jpegs. From my test with this settings I get 2.6s for DNG and 2s for RAW.

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Is there anything on your list that needs to be done in order to make the last beta final?

A hack is never really "final"... If you don't see any major issues you can call every latest version final.

Re: PowerShot SX220 HS - Porting Thread
« Reply #231 on: 08 / July / 2011, 07:32:56 »
Hi funnel, bought this nice camera about 2 month ago, and found out about CHDK and Canon cams.

I decided to register to thank you for your work and to ask a question about your last option. Like you, I found that disp + set is not really natural to do. But I agree with previous message that disp functions are used more often than the ALT menu.
My question is : could the behavior be inverted ? Holding DISP goes to the ALT menu while just pressing it use the disp functions. I thing it could make more people happy.

(Hho, by the way, last time i checked - a few versions ago - the numbering of shots was reseted when i went back to Canon classic firmware, is it always the same ?)

Again, very good work and thank you !

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #232 on: 08 / July / 2011, 11:16:56 »

My question is : could the behavior be inverted ? Holding DISP goes to the ALT menu while just pressing it use the disp functions. I thing it could make more people happy.

I tried to do that some time ago and gave up. I don't remember right now what was the problem.

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(Hho, by the way, last time i checked - a few versions ago - the numbering of shots was reseted when i went back to Canon classic firmware, is it always the same ?)

That happened to me too, but I'm not sure why. The camera reset to factory settings and I had to input the time and everything else. I'm not sure if it's chdk related or not.

Re: PowerShot SX220 HS - Porting Thread
« Reply #233 on: 09 / July / 2011, 14:11:05 »
it seems that the new beta8 cancels the DISP increasing brightness function
pressing the DISP button for more than 2 seconds it should increase to the maximum the brightness of the screen and viceversa go back to original settings.


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Offline Tiz

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Re: PowerShot SX220 HS - Porting Thread
« Reply #234 on: 10 / July / 2011, 01:06:12 »
After playing with my camera, I have encountered the following problem:

RAW always switches itself off (I put it on in the CHDK alt menu, exit the CHDK menu, make a foto, no RAW taken, enable the CHDK menu, look at RAW settings, RAW is switched off). Same applies if I do not take a photo but only exit the CHDK alt menu and enter it again. RAW is disabled then.

I do not know the reason but I believe that this problem occurred after I started to swap partitions on my SD card (so that Windows can read the partition with the images). I have a small 2MB partition and a large 7.x GB partition. On both partitions there is a CHDK folder. Also the boot files are on both partitions. CHDK is automatically loaded. If I switch partitions, I have to load CHDK manually until I change to the bootable partition again.

It seems that the problem does not always occur. Sometimes, right after the start (with CHDK automatically loaded) RAW is enabled.


Re: PowerShot SX220 HS - Porting Thread
« Reply #235 on: 10 / July / 2011, 07:20:02 »
After playing with my camera, I have encountered the following problem:

RAW always switches itself off (I put it on in the CHDK alt menu, exit the CHDK menu, make a foto, no RAW taken, enable the CHDK menu, look at RAW settings, RAW is switched off). Same applies if I do not take a photo but only exit the CHDK alt menu and enter it again. RAW is disabled then.

I do not know the reason but I believe that this problem occurred after I started to swap partitions on my SD card (so that Windows can read the partition with the images). I have a small 2MB partition and a large 7.x GB partition. On both partitions there is a CHDK folder. Also the boot files are on both partitions. CHDK is automatically loaded. If I switch partitions, I have to load CHDK manually until I change to the bootable partition again.

It seems that the problem does not always occur. Sometimes, right after the start (with CHDK automatically loaded) RAW is enabled.


if you are using Beta7 or early, the problem is that when you exit the alt menu you press the disp button first; that disable the Raw; so you should pay attention to press first the "Set" and then "disp" button to exit from the Alt menu.
« Last Edit: 10 / July / 2011, 07:44:12 by onesky »

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Offline Tiz

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Re: PowerShot SX220 HS - Porting Thread
« Reply #236 on: 10 / July / 2011, 08:26:30 »
Muchas gracias! You were right.

Re: PowerShot SX220 HS - Porting Thread
« Reply #237 on: 10 / July / 2011, 11:36:13 »
I tried several programs to convert the *.crw file into a jpeg or dng but none of the programs seems to recognise the CHDK RAW file. Any suggestions / tips? Thx in advance!

Btw: I don't have a mac, I use MS W7 x64.
« Last Edit: 10 / July / 2011, 11:37:44 by Blablaat »


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Offline Tiz

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Re: PowerShot SX220 HS - Porting Thread
« Reply #238 on: 10 / July / 2011, 14:32:17 »
The camera can also save the RAWs as .dng files. Then you do not have to convert. Or is there any specific reason why you want to save the RAws as .crw files?

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Offline funnel

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Re: PowerShot SX220 HS - Porting Thread
« Reply #239 on: 10 / July / 2011, 15:14:09 »
I tried several programs to convert the *.crw file into a jpeg or dng but none of the programs seems to recognise the CHDK RAW file. Any suggestions / tips? Thx in advance!

Btw: I don't have a mac, I use MS W7 x64.

You can with DNG4PS2 http://code.google.com/p/dng4ps2
Read more about it here http://chdk.wikia.com/wiki/DNG4PS-2

Copy an existing camera and use the settings from the attached image.
For colormatrix I just copied the one from the port but it's not too good.
Code: [Select]
14458.000000 -5704.000000 -1562.000000 -2520.000000 14700.000000 1388.000000 -1336.000000 2334.000000 4387.000000
To convert is good to have both .jpg and .crw files in the same folder.

 

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