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ELPH300HS aka IXUS220HS - Porting Thread

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Offline tommi2water

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  • IXUS 220 HS Firmware: 1.00c
Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #270 on: 26 / November / 2011, 17:41:16 »
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Jstanley, if you still have a crash problem, try it like I did in http://chdk.setepontos.com/index.php?topic=6341.msg76642#msg76642

Then we will see, which task is responsible for the crash.
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Offline Sinyak

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #271 on: 26 / November / 2011, 17:54:02 »
1.01c - photos as RAW - working now!
Thanks Tommi!

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But do not create the file badpixel.bin (for .DNG)
writes "badpixel.bin failed. Please try again."
« Last Edit: 26 / November / 2011, 19:13:18 by Sinyak »
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Offline acidrunner

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #272 on: 26 / November / 2011, 18:23:46 »
1.01a:
booting up fine
RAW working
Intervolometer working

Tommi, crazy thanks dude!
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Offline jstanley0

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #273 on: 26 / November / 2011, 21:18:53 »
Working for me on 101a.  Nice job!  8)

I'm seeing a weird issue, though.  .DNG files have a fisheye effect ???

in-camera JPEG:


converted DNG:


I guess the lens on this camera has some crazy barrel distortion at the wide end, which in-camera processing corrects for.  I guess this sort of thing is probably why Canon reserves RAW for expensive cameras.

On the plus side, though, this camera appears to have a lens that's actually _wider_ than 24mm equivalent.

Can't tell what the .CRW files look like, because I can't find a program that will read them.  (Not even dcraw.)
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Offline waterwingz

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #274 on: 26 / November / 2011, 21:24:52 »
Quote from: jstanley0 on 26 / November / 2011, 21:18:53
I'm seeing a weird issue, though.  .DNG files have a fisheye effect ???
I guess the lens on this camera has some crazy barrel distortion at the wide end, which in-camera processing corrects for.
Can't tell what the .CRW files look like, because I can't find a program that will read them.  (Not even dcraw.)
Reposted to help answer the same questions :

CHDK Forum thread on RAW
CHDK Wiki Page about RAW
CHDK Wiki Page about Raw Software
How do you fix lens distortion with CHDK RAW files?

and this :
Decoding CHDK RAW images from a new cameras
« Last Edit: 26 / November / 2011, 21:36:42 by waterwingz »
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline sush

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  • ixus220 300hs firmware 1.01c
Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #275 on: 26 / November / 2011, 21:24:57 »
I guess the in-camera lens correction for that distortion means a bit of the jpg needs to be cropped.  I'm so looking forward to the RAW capability - will download now and give it a try!!  :)
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Offline jstanley0

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #276 on: 26 / November / 2011, 21:47:47 »
Thanks for the posts about the RAW surprise.

I've been playing with the camera a bit more, and I've hit at least one bug.  When trying to fix the aperture value, I found the F-number started at 3.3, which is incorrect for this camera (it should go to 2.7).  Then when I tried to actually take a shot in Av, the camera crashed.

Also, the focal length tag in DNG files is nonsense, but this may be a limitation unrelated to this port.
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Offline jstanley0

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #277 on: 26 / November / 2011, 21:53:13 »
Oh, and I tried to record a movie under CHDK, and the camera crashed immediately.
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Offline sush

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #278 on: 26 / November / 2011, 22:27:37 »
Anyone try a dual-partition SD card (first partition small and fat16, second big and fat32) ?  Not sure if chdk is recognizing the second partition.
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Offline philmoz

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Re: ELPH300HS aka IXUS220HS - Porting Thread
« Reply #279 on: 26 / November / 2011, 22:38:45 »
Quote from: sush on 26 / November / 2011, 22:27:37
Anyone try a dual-partition SD card (first partition small and fat16, second big and fat32) ?  Not sure if chdk is recognizing the second partition.


Not necessary anymore. This years camera releases can boot from a FAT32 partition - has been tested up to 64GB on the SX40HS.

Use the option under the Miscellaneous Stuff menu to make the card bootable.

Phil.
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CHDK ports:
  sx30is (1.00c, 1.00h, 1.00l, 1.00n & 1.00p)
  g12 (1.00c, 1.00e, 1.00f & 1.00g)
  sx130is (1.01d & 1.01f)
  ixus310hs (1.00a & 1.01a)
  sx40hs (1.00d, 1.00g & 1.00i)
  g1x (1.00e, 1.00f & 1.00g)
  g5x (1.00c, 1.01a, 1.01b)
  g7x2 (1.01a, 1.01b, 1.10b)
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