extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK! - page 10 - General Discussion and Assistance - CHDK Forum
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extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!

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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #90 on: 07 / June / 2009, 21:45:55 »
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Quote from: ravelithium on 06 / June / 2009, 18:14:52
ewavr

I was wondering if there's a chance that an extended exposure time for the A560 (ver FW: 100a) might be available soon. Thank you a lot ^^
Regards

ravel
atual work with 65s: http://ravelithium.deviantart.com/
edit re-uploaded at    2:37 GMT, first build didn't have long exposure turned on in camera.h  :'(

Please try the test build at http://www.zshare.net/download/61084765bf7782bd/
If it works, I'll commit.
« Last Edit: 07 / June / 2009, 22:37:54 by reyalp »
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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #91 on: 08 / June / 2009, 01:44:03 »
Quote from: mngc on 07 / June / 2009, 05:35:33
Hi,

@reyalp

My camera is a590is fw 1.0.b. Possibly add support for extra long exposure? Thank.
Very interesting feature for me.

Lajos
Here's a test build for a590 101b http://www.zshare.net/download/61089350b8fe3c25/
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Offline mngc

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #92 on: 08 / June / 2009, 05:34:59 »
Many thanks, reyalp. Now downloaded it. I will test it, and i report back.

Currently i working some test and building external power supply for this camera.
The adapter plug is 2,35/0,75mm (not 2,5mm!). Center pin positive. I use simple test,
 now the camera is running from laboratory power supply. CHDK show the voltage same with
 the power supply voltage. Original Canon power supply output is 3.15V, i think this is absoulute maximum rating.
(equal two fresh AA cell voltage). Do not use any unstabilized, cheap adaptor, possibly kill the camera (this adaptors with low load, the output voltage very high). And check polarity twice. Any high quality 3 volt 2-3 amper stabilized adapter useful. I will build external battery pack with two D size alkaline battery or accu. Some measurements coming soon, for example, how many current required for playback, record, flash, etc.

Lajos


Quote from: reyalp on 08 / June / 2009, 01:44:03
Here's a test build for a590 101b http://www.zshare.net/download/61089350b8fe3c25/
[/quote]
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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #93 on: 08 / June / 2009, 23:14:48 »
Here's a test build for a590 100e http://www.zshare.net/download/6112796249102371/
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Offline mngc

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #94 on: 09 / June / 2009, 01:12:48 »
@reyalp

Now tested this chdk http://www.zshare.net/download/61089350b8fe3c25/ on a590is fw 1.0.1b.
I not have 1.00e firmware camera, cannot test.

Now override menu exposure time selectable 2048sec - 1/100K.

- I try record 16 sec image, OK.
- 64 sec time is OK, and image is OK, i see visual difference with 16sec
- 80 sec time, not ok, real time approx. 64 sec only, picture visually same as "normal" 64sec
- 128 sec time, not ok, real time approx. 64 sec only, picture visually same as "normal" 64sec
- 2048 sec time, not ok, real time approx. 64 sec only, picture visually same as "normal" 64sec
- i try Shutterspeed enum type switch to factor, and set it to 500 * 1 sec. not ok, real time approx. 64 sec only, picture visually same as "normal" 64sec

I try disable dark frame subtraction, this is ok, not record the dark frame, and i see visual difference in image.

Any help are welcome, and of course i test it.




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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #95 on: 09 / June / 2009, 01:40:47 »
Quote from: mngc on 09 / June / 2009, 01:12:48
@reyalp

Now tested this chdk http://www.zshare.net/download/61089350b8fe3c25/ on a590is fw 1.0.1b.
I not have 1.00e firmware camera, cannot test.
Understood, but all sub versions have to be implemented. The switch in camera.h is per camera, not per sub.

try http://www.zshare.net/download/61131483fe8c5c4a/

edit:
trying a 128 and a 60 second exposure should be enough.
« Last Edit: 09 / June / 2009, 01:43:19 by reyalp »
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Offline mngc

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #96 on: 09 / June / 2009, 02:52:06 »
Now test the latest testbuild (Build date jun 8 2009, 22:37:55)

- 64 sec ok
- 128 sec not ok, recording time only 64 sec.
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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #97 on: 09 / June / 2009, 03:25:15 »
Quote from: mngc on 09 / June / 2009, 02:52:06
Now test the latest testbuild (Build date jun 8 2009, 22:37:55)

- 64 sec ok
- 128 sec not ok, recording time only 64 sec.
One more http://www.zshare.net/download/6113394740c3e551/
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Offline mngc

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #98 on: 09 / June / 2009, 04:54:56 »
Quote from: reyalp on 09 / June / 2009, 03:25:15

One more http://www.zshare.net/download/6113394740c3e551/

Now test this version of chdk. Wow! Working. This is a simple fast test, 64s ok, 128s ok. I will test more later, now the Sun too bright, i waiting for night...
Big thank you, reyalp!   
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Offline reyalp

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Re: extra long exposures (split from: Hardcore modding on a A530, thanks to CHDK!
« Reply #99 on: 09 / June / 2009, 05:03:14 »
Quote from: mngc on 09 / June / 2009, 04:54:56
Now test this version of chdk. Wow! Working. This is a simple fast test, 64s ok, 128s ok. I will test more later, now the Sun too bright, i waiting for night...
Great :)

Updated 100e http://www.zshare.net/download/611367101837b12c/
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