extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!

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Offline whoever

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How about reading ADC channels (GetAdChValue())? This voltage can be connected to ADC.
I remember on CCD webcams, if you reduced the voltage a bit, the image brightness was slightly darker.
Thanks Leonardo, thanks ewavr (no, it is not connected to ADC). Couldn't produce anything useful, sorry. At least now I know there are twelve ADC channels measuring who-knows-what...

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Offline ewavr

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Re: extra long exposures
« Reply #61 on: 18 / April / 2009, 15:50:41 »
Here is long exposures patch for s5is (attached).
Not tested, sorry.

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Offline PhyrePhoX

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i'm trying to add long exposure for ixus80, but i dont even know how you guys found apex2us, let alone the big asm function. any clues?

i'm trying to add long exposure for ixus80, but i dont even know how you guys found apex2us, let alone the big asm function. any clues?

I think this is in the trunk already, rev. 728.
Powershot SD1100 IS  FW 1.01A
CHDK autobuild 0.9.8-755
SDM 1.80

A MORE than well deserved thanks to all who made CHDK possible. It's made me a camera freak!


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Offline PhyrePhoX

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haha, good one. i should think more often :D thanks for the info.

I was initially excited to see the exposure limit broken but the results i see are of low quality. why is that? yet many people are still excited about the results. how are they taking advantage of the feature? is there any reason to believe that results would be particularly better with another camera model? my a650 gives quite nice images at 65s

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Offline quietschi

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quietschi i guess we can also check your patch in, i mean, if you found the adresses in a legitimate way and did not just "guess" them ;)
As there's no feedback about other platformsubs, i cannot tell if it's working for 100c and 101b.
102a is working for me

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Offline PhyrePhoX

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awrite, just checked in s5is, a570 & ixus70 in #750.
i guess people will complain if it doesnt work ;)

actually i dont know if i got the right patch for the a570 now, i used the one from #14.


Hello,

i've tried on my A590is the new a590-101b-0.9.8-750-full.zip.
The extra long exposure dosn't work on this camera. It stops after 64 secondes.

Greetings

Pit

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Offline PhyrePhoX

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thats because the a590 is not included in the extra long exposure club yet.

 

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