Powershot SX150 IS Porting Thread

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Re: Powershot SX150 IS Porting Thread
« Reply #190 on: 03 / October / 2012, 12:29:03 »
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I have just tried chdk on my new sx 150, i have tried some basic features (live histogram and raw saving and tv bracketing are working fine) so thank you all for the port.

Anyway i have some questions:

1) I don't see dng files throught usb (iirc in the a720 build - i had that camera - there was such an option and surely i used the usb cable to download them). Is there a way to see them without extracting the card?

2) I have created badpixel.bin (reports something like 22000 bad pixels), but in rawtherapee (4.0.8.50) i still see a lot of hot pixels. With the a720 chdk i didn't saw them, is there something to change to the default config? If needed i'll upload a dng and the badpixel file created.

3) When i press the rec (movie) button, i see a lot of errors on the screen ("DNG DISABLED") and they are filling the screen vertically and probably repeated and scrolling down.

Thank you in advance.

Re: Powershot SX150 IS Porting Thread
« Reply #191 on: 03 / October / 2012, 14:10:43 »
2) i have recreated badpixel.bin and choosed dng 1.1 . I don't see black pixels anymore

Re: Powershot SX150 IS Porting Thread
« Reply #192 on: 25 / October / 2012, 10:12:59 »
Hello all,

Apologies in advance for being a little off topic.

I'm considering experimenting with CHDK on my SX150, but was wondering if it was going to offer what I was looking for.  I'm hoping to be able to disable the auto ISO on the video recording function, as well as being able to lock shutter and aperture whilst recording.  I was also wondering whether it was possible to shoot in 25FPS rather than 29.97.

I've got a fair bit of experience using Magic Lantern on my 5D (which from what I understand is a dev branch from CHDK) but have never tried any of the variants here.

Any thoughts/advice would be greatly received!

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Offline reyalp

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Re: Powershot SX150 IS Porting Thread
« Reply #193 on: 25 / October / 2012, 16:21:14 »
I'm considering experimenting with CHDK on my SX150, but was wondering if it was going to offer what I was looking for.  I'm hoping to be able to disable the auto ISO on the video recording function, as well as being able to lock shutter and aperture whilst recording.  I was also wondering whether it was possible to shoot in 25FPS rather than 29.97.
With some hacking you might be able to control ISO and shutter speed. See this thread http://chdk.setepontos.com/index.php?topic=5295.msg54071#msg54071

Searching the forum for the functions mentioned may find you a bit more information.

There has been some investigation of shutter speed (look for posts by srsa_4c) but I'm not aware of anything usable.
Quote
I've got a fair bit of experience using Magic Lantern on my 5D (which from what I understand is a dev branch from CHDK) but have never tried any of the variants here.
Magic Lantern is not a branch of CHDK, as far as I know, there is no significant code in common. It's made by different people and the underlying software and hardware is different.
Don't forget what the H stands for.


Re: Powershot SX150 IS Porting Thread
« Reply #194 on: 04 / November / 2012, 21:54:00 »
This is not an SX150 specific question, and I apologize in advance if this is being posted in the wrong place.

I have been using CHDK on older cameras (A590) requiring the standard partition-swap trick for many years, but I'm having difficulty finding information on getting larger FAT32 cards booting in my recently-purchased SX150.

Using a 4GB SD card, I am able to easily boot up with CHDK on the SX150, thank you everyone here for your fantastic work making that happen.  :D

Attempts using cardtricks145 on a 32GB SD card create a card that, even though everything looks normal, does not boot and I get the basic non-CHDK "memory card is locked" message from the camera.  According to EOSCard, Cardtricks appears to be putting EOS_DEVELOP and BOOTDISK strings onto the card as part of its latest "CF Boot Sector" option.  Is this correct for a Canon P+S camera?

Thank you in advance for your time!  Sorry for the Noobish question!

Re: Powershot SX150 IS Porting Thread
« Reply #195 on: 04 / November / 2012, 22:15:45 »
This is not an SX150 specific question, and I apologize in advance if this is being posted in the wrong place.

I have been using CHDK on older cameras (A590) requiring the standard partition-swap trick for many years, but I'm having difficulty finding information on getting larger FAT32 cards booting in my recently-purchased SX150.

Using a 4GB SD card, I am able to easily boot up with CHDK on the SX150, thank you everyone here for your fantastic work making that happen.  :D

Attempts using cardtricks145 on a 32GB SD card create a card that, even though everything looks normal, does not boot and I get the basic non-CHDK "memory card is locked" message from the camera.  According to EOSCard, Cardtricks appears to be putting EOS_DEVELOP and BOOTDISK strings onto the card as part of its latest "CF Boot Sector" option.  Is this correct for a Canon P+S camera?

Thank you in advance for your time!  Sorry for the Noobish question!
Latest up-to-date instructions are here :

Prepare_your_SD_card

CardTricks is very old - probably a good idea not to try and use it anymore.

Ported :   A1200    SD940   G10    Powershot N    G16

Re: Powershot SX150 IS Porting Thread
« Reply #196 on: 05 / November / 2012, 01:22:57 »
Fantastic.  Thank you, sir.  That worked great.  I'm not sure why I never found that page in hours of google searches.  I am happy to ditch cardtricks (and sdminste.exe).

While we're on the subject of outmoded techniques leftover from me using old cameras, at the risk of going completely off-topic for this thread, what are folks doing these days to save RAW?  In the past, I've been shooting to CRW (because it was a faster write speed than CHDK DNG) and then converting to compressed DNG using dng4ps2.  This had the added benefit that those DNGs were significantly smaller than the uncompressed ones made by the camera and therefore cheaper and easier to store (I'm doing lots of timelapse so I have terrabytes of these pics).

Noting that I haven't yet figured out how to configure dng4ps2 to read the CRW/CR2s from the SX150, Is there a better workflow for getting compressed DNGs these days?

Thank you again for your time!

Re: Powershot SX150 IS Porting Thread
« Reply #197 on: 13 / November / 2012, 05:00:55 »
I was planing to buy the SX150 HS, but realized that CHDK for this cam is still in alpha stage. Before buying this cam I just wanted to know whether it supports the default scripts(motion-detection,timelapse) and whether I can override the shutter speed beyond the camera limits. Thanks!!


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Offline reyalp

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Re: Powershot SX150 IS Porting Thread
« Reply #198 on: 13 / November / 2012, 22:26:35 »
I was planing to buy the SX150 HS, but realized that CHDK for this cam is still in alpha stage. Before buying this cam I just wanted to know whether it supports the default scripts(motion-detection,timelapse) and whether I can override the shutter speed beyond the camera limits. Thanks!!
The alpha / beta label does not mean a whole lot. As far as I know most standard CHDK features work in this port.

edit:
oops, leaving out the not doesn't help...
« Last Edit: 13 / November / 2012, 22:43:59 by reyalp »
Don't forget what the H stands for.

Re: Powershot SX150 IS Porting Thread
« Reply #199 on: 18 / November / 2012, 13:05:09 »
I would like to report what looks like a bug.

I have recently tried to do some low light shots using long times (for example 15 seconds). and i have found out that sometimes dngs are NOT saved when using times longer than 2 seconds. The card is a fast 32 gb sandisk uhs1.

I have even tried out bracketing, but still the results are quite random.

Thank you in advance.
« Last Edit: 18 / November / 2012, 13:08:28 by pshotuser »

 

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