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Powershot SX150 IS Porting Thread

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Offline reyalp

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    Re: Powershot SX150 IS Porting Thread
    « Reply #270 on: 30 / September / 2015, 22:45:21 »
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    Hears a test build with rear curtain define enabled. Please check if it actually has the expected effect on when the flash fires.
    Don't forget what the H stands for.

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    Re: Powershot SX150 IS Porting Thread
    « Reply #271 on: 04 / October / 2015, 22:09:29 »
    Tested it - so far it from what I've tried it works perfectly - thanks!

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    Re: Powershot SX150 IS Porting Thread
    « Reply #272 on: 04 / October / 2015, 22:15:32 »
    Tested it - so far it from what I've tried it works perfectly - thanks!
    I know nothing about flash sync.  How does one test this?  What do you expect to see that your don't get normally?

    TIA.
    Ported : A1200  SD940  G10  Powershot N  G16*

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    Re: Powershot SX150 IS Porting Thread
    « Reply #273 on: 04 / October / 2015, 22:56:13 »
    When rear curtain is enabled, the flash should fire at the end of the exposure rather than the beginning - so for example I've used it a lot for the northern lights or fireworks with people in the shot also - to get both the long exposure and then when the flash fires at the end of the exposure it freezes/draws out the people in the foreground clearly - also cool for moving subjects because the longer exposure will blur the motion but the flash at the back end of the exposure freezes the subject at the end ;)



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    Re: Powershot SX150 IS Porting Thread
    « Reply #274 on: 04 / October / 2015, 23:02:41 »
    When rear curtain is enabled, the flash should fire at the end of the exposure rather than the beginning
    Okay - thanks.  I think I get it - you are using this with long exposures (more than a 2 seconds) to also freeze/illuminate things nearby at the end of the shot.

    Ported : A1200  SD940  G10  Powershot N  G16*

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    Offline reyalp

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    Re: Powershot SX150 IS Porting Thread
    « Reply #275 on: 04 / October / 2015, 23:33:02 »
    Tested it - so far it from what I've tried it works perfectly - thanks!
    Thanks for confirming. I've checked this in so it will appear in the next autobuilds (trunk 4271, stable 4272)
    Don't forget what the H stands for.

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    Re: Powershot SX150 IS Porting Thread
    « Reply #276 on: 16 / November / 2015, 06:55:58 »
    issue (trunk4175):
    get_prop(props.DISPLAY_MODE) does not seem to work

    discovered:
    Canon Reset All re-enables the auto LCD off. In attempting this workround of that http://chdk.setepontos.com/index.php?topic=11038.msg108087#msg108087 - rather than just wait 10 secs, I included this check so a subsequent key press would re-enable the earlier call to LockMainPower

    Code: [Select]
    repeat
    sleep(1000)
    until get_prop(props.DISPLAY_MODE) == 2 --i.e. off
    however, result was that the loop continued when lcd turned off.

    A propcase compare dump, from 0 to 300, between lcd off & on reports only the not very useful:

                     prop off     on
    1st run diff 273   921   912
    2nd run diff 273   915   920

    Is there another possible way to identify this or does it likely not exist?



    Info:
    Tested in record, M

    In trunk4175 platform_camera.h, #define CAM_PROPSET -> 4
    In propset4.h, #define PROPCASE_DISPLAY_MODE -> 105

    Reset All & propcase discovery script used attached
    « Last Edit: 16 / November / 2015, 08:21:04 by andrew.stephens.754365 »

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    Re: Powershot SX150 IS Porting Thread
    « Reply #277 on: 30 / December / 2016, 06:35:41 »
    I need to operate chdk while the battery/SD compartment door remains open.

    If a kind dev were to provide the SX150IS:
    • battery cover index
    • battery cover flag
    It would provide me a nice start to do something useful in the New Year  :)
    « Last Edit: 30 / December / 2016, 07:09:13 by andrew.stephens.754365 »


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    Offline srsa_4c

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    Re: Powershot SX150 IS Porting Thread
    « Reply #278 on: 30 / December / 2016, 08:07:12 »
    If a kind dev were to provide the SX150IS:
    • battery cover index
    • battery cover flag
    It's in the official source (as comment).

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    Re: Powershot SX150 IS Porting Thread
    « Reply #279 on: 30 / December / 2016, 10:59:33 »
    It's in the official source (as comment).

    Thanks!



    Edit Update (for the record):

    Since SX150IS chdk battery door operation is not currently supported I had automatically assumed it would not work. However, on testing, I found the camera still operational (in both record and play mode) around 5 minutes after starting the camera with the door open!

    A related thread is this:
    https://chdk.setepontos.com/index.php?topic=5744.0
    « Last Edit: 31 / December / 2016, 05:00:03 by andrew.stephens.754365 »

     

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