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Chdk for SX130 IS ?

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Offline can1

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Re: Chdk for SX130 IS ?
« Reply #830 on: 02 / September / 2011, 02:53:54 »
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Hello ntstatic,
thanks for your suggestions. I will definitely buy a SX130IS soon. By the way, here in Italy the price is going down to about $220.

I've just a question about the CHKD features for this camera, which are important for my purposes. Are the following features implements and supported?

- USB remote
- Automatic Focus bracketing (to get extended depth of field)
- Autiomatic Exposure bracketing (to get HDR photos)
- Time lapse

Thanks!
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Offline ntstatic

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Re: Chdk for SX130 IS ?
« Reply #831 on: 02 / September / 2011, 08:13:53 »
just a double post !! deleted
« Last Edit: 02 / September / 2011, 08:18:03 by ntstatic »
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Offline ntstatic

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Re: Chdk for SX130 IS ?
« Reply #832 on: 02 / September / 2011, 08:16:38 »
Quote from: can1 on 02 / September / 2011, 02:53:54
Hello ntstatic,
thanks for your suggestions. I will definitely buy a SX130IS soon. By the way, here in Italy the price is going down to about $220.

I've just a question about the CHKD features for this camera, which are important for my purposes. Are the following features implements and supported?

- USB remote
- Automatic Focus bracketing (to get extended depth of field)
- Autiomatic Exposure bracketing (to get HDR photos)
- Time lapse

Thanks!
although i do not use these features i do not see y they should not be supported as they are a standard feature of CHDK
i cannot comment on the USB remote but all the others are implemented using scripts and so there should not be any problem
i have tried exposure bracketing without using scripts and it worked excellently.

normally most of the time i use the camera when it is connected to a pc thru a CHDK PTP interface so i am not the best person to comment on it.
since a long time no bugs have been reported in this thread so i would suppose everything works as intended.

do not be mislead by the alpha tag, the SX 130 CHDK port is, in my opinion, very stable.
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Offline Mike Lee

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Re: Chdk for SX130 IS ?
« Reply #833 on: 02 / September / 2011, 10:29:19 »
If these could be considered "bugs", I would again bring up the issue I encounter (camera freeze) when selecting "SuperFine" output and then attempting grid overlay (panorama) or exposure bracketing, as described here:     http://chdk.setepontos.com/index.php?topic=5691.msg72139#msg72139

With video, there is a Canon error "09" when attempting to shoot 720 video with "Quality" selected and the default number unchanged.

No one could have been more apprehensive about using CHDK than I was before I "bit the bullet" and pressed "Firm Update...".  Now, I'd recommend CHDK to any and all SX130IS owners.
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Offline Mike Lee

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Re: Chdk for SX130 IS ?
« Reply #834 on: 02 / September / 2011, 10:39:09 »
Phil,

I spent a little more time on the no "-" exposure bracketing issue as I described here: http://chdk.setepontos.com/index.php?topic=5691.msg72261#msg72261

I discovered that the "+" and "-" exposure compensation options are reversed!  Check it out, "-" will increase exposure, and "+" will decrease exposure!

I feel so guilty to ask for a fix.  Interesting no one else noticed this (not to my knowledge anyway)??
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Offline moxican

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Re: Chdk for SX130 IS ?
« Reply #835 on: 02 / September / 2011, 15:53:42 »
Hi guys
I'd have a question. In crack the read me file says that I can get up to 64 sec exposures. Now I installed CHDK and it lets me do
 Longer a lot longer. I don't know if I should do longer, I mean I don't wanna ruin the CCD chip. Should I be concerned about this or
 it's ok to go as long as I want to? What's the max temperature that this CCD can take with this cam?
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Offline CHDKSerbianFan

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Re: Chdk for SX130 IS ?
« Reply #836 on: 02 / September / 2011, 17:21:50 »
Quote from: moxican on 02 / September / 2011, 15:53:42
Hi guys
I'd have a question. In crack the read me file says that I can get up to 64 sec exposures. Now I installed CHDK and it lets me do
 Longer a lot longer. I don't know if I should do longer, I mean I don't wanna ruin the CCD chip. Should I be concerned about this or
 it's ok to go as long as I want to? What's the max temperature that this CCD can take with this cam?

Up to 2048 seconds (34+ minutes), with no problems. I have even made three shots in a sequence (with self timer), shooting stars, I thought that camera has crashed, but it worked perfectly all the time and created three images. Clouds were the only problem. Regards from the banks of Danube.
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Offline philmoz

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Re: Chdk for SX130 IS ?
« Reply #837 on: 02 / September / 2011, 19:00:05 »
Quote from: Mike Lee on 02 / September / 2011, 10:39:09
Phil,

I spent a little more time on the no "-" exposure bracketing issue as I described here: http://chdk.setepontos.com/index.php?topic=5691.msg72261#msg72261

I discovered that the "+" and "-" exposure compensation options are reversed!  Check it out, "-" will increase exposure, and "+" will decrease exposure!

I feel so guilty to ask for a fix.  Interesting no one else noticed this (not to my knowledge anyway)??

That's just the way the bracketing works - it's not '+ / -' exposure it's '+ / -' the value being changed.
By convention '+' on the Tv value gives a faster shutter speed, and '+' on the Av value gives a higher F number (smaller aperture).
The only one that will increase exposure is '+' on the ISO value.

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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Offline philmoz

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Re: Chdk for SX130 IS ?
« Reply #838 on: 02 / September / 2011, 19:05:40 »
Quote from: Mike Lee on 02 / September / 2011, 10:29:19
If these could be considered "bugs", I would again bring up the issue I encounter (camera freeze) when selecting "SuperFine" output and then attempting grid overlay (panorama) or exposure bracketing, as described here:     http://chdk.setepontos.com/index.php?topic=5691.msg72139#msg72139

Does superfine work in continuous mode with CHDK bracketing off?
When it freezes can you still turn the camera off, or do you have to remove the battery?

Quote
With video, there is a Canon error "09" when attempting to shoot 720 video with "Quality" selected and the default number unchanged.

This could be your SD card speed not being able to keep up - if you decrease the quality value does it fix the problem?

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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Offline Mike Lee

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Re: Chdk for SX130 IS ?
« Reply #839 on: 03 / September / 2011, 11:05:22 »
Phil,

Thank you very much for your reply, and for all your work on this project.

The current CHDK user guide describes bracketing just as I would expect +/- exposure backeting to work (see page 12).  While I can understand your logic, it is, I believe, atypical for describing exposure bracketing (versus TV or AV adjustment). 

Regarding SuperFine working in continuous mode with CHDK bracketing off... no, it does not work, for all intents and purposes.  This means that while it may appear to be taking a series of images, after the buffer fills, the screen goes black (camera freezes) and when I press the power button it immediately restarts.  I say "after the buffer fills" because depending on whether I am shooting a detailed subject (where the files would be larger) the camera may shoot only three continuous images, whereas if I shoot a simple subject (smaller files) the camera may shoot seven or more continous images, ALTHOUGH NONE OF THE IMAGES WILL BE SAVED!  I can sometimes get two detailed images to be saved in continuous mode if I attempt to take two images only.

All my shooting is with Class 6 cards.  I will attempt to get a Class 10 card to see if SuperFine or movie quality issues resolve themselves.

Again, many thanks,
Mike
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