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PowerShot SX230 HS - Porting Thread

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #420 on: 28 / December / 2011, 16:01:04 »
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    I tested it at 20s and at 30s and at 45s. results were within 15min of each other.  I like the link posted to rigging together a better battery pack.  I am almost certain turning the gps off will get another hour out of battery.
    All GPS's attach altitude, since this is just another coordinate calculated from satellite time.
    Good luck, and remember (this is what a seasoned guy told us) Most of the failures happen on launch so plan it well.  Another team I talked to leaked helium as they were pumping it.  We used a standard nozzel and carefully filled it so slowly.  I think that if we filled it up a bit more it would have higher pictures because it would have ascended faster.

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #421 on: 28 / December / 2011, 16:03:24 »
    That is a bummer on the two hour battery life. Was hoping to get 3-3.5 hours. Do you think turning the GPS feature off would save that much battery life?

    I will have a RTrak-HAB on board the payload and I think I think the kids can match the data packets up with the pictures based on the time stamp to get a pretty good idea as to where the camera was when the picture was taken. If they can get to within 500 feet up or down and I think we would be OK.

    Do you know any other way to extend the battery life?

    The picutres that camera takes are spectacular. With the widescreen feature were we hoping to blow a couple up and have them printed for the hallway at school. I have a poster printer in my office that would work well for that.

    Good info here. Glad you came and shared your results. I do like the fact that the camera attaches the altitude on the picture. Did not know the camera would do that.

    There is no reason to use the widescreen feature as all this does is crop the resolution down.  Just take it at full res and post-production everything.  I also wish that since we were taking so infrequently that i had dng raw enabled since it would have fit on the card.

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #422 on: 28 / December / 2011, 16:07:17 »
    I also wish that since we were taking so infrequently that i had dng raw enabled since it would have fit on the card.
    Judging by the amount of processing time CHDK takes to make a DNG file,  you might want to check the effect on battery life.

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #423 on: 28 / December / 2011, 22:50:08 »
    Hello:

    Where can i find a basic tutorial to install CHDK in my Canon SX230 HS??

    Thanks!


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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #424 on: 29 / December / 2011, 00:47:00 »

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #425 on: 29 / December / 2011, 11:25:45 »
    A while back, I posted here about a battery pack I built out of 8 (4+4 parallel) AA NiMH rechargeables... Realizing I never came back to give results. The lower voltage from them being rechargeable, at full charge came out to be something like 5.2, maybe 5.3 volts, camera took it like a champ for nearly 8 hours doing nothing but Miniature Mode (20x, 720p)... Didn't know at the time that the screen never turns off during Mini-Mode recording (the time lapse feature on my SD770 turns off the screen, wtf was Canon thinking??? But then again, the SD770 also goes for 2 hours in TL mode  ::) ), so the screen was on the entire time... I'm betting with the script you are using (turns off the screen after every shot, is shooting pictures rather than continuous video)... This battery pack would probably last you a REALLY long time.

    My original posts: http://chdk.setepontos.com/index.php?topic=6397.msg72885#msg72885 (top of the page and more below)

    Also, the pictured 2650mAh Duracell NiMH batteries in that post totally SUCK; they do not hold their charge worth a second thought. Camera literally only lasted 45 minutes with those things... AFTER a full charge! Needless to say, they were taken back to the store and refunded. However - I also have 8 Duracell "PreCharged" 2000mAh batteries that I generally use in my SX20.. These batteries totally ROCK. They're the ones I used that lasted a full 8 hours. Just a heads up :)


    And unfortunately I can't try your script to see how long it would last because some kid knocked my SX230 off a counter top and now it's dead. Hoping to get a new one soon though!!! I loved that little camera.. :(
    « Last Edit: 29 / December / 2011, 11:27:55 by AK49BWL »
    Canon SD770IS GM1.00A
    Canon SX20IS GM1.02B
    Canon SX230HS GM1.00C (RIP :()
    Canon SX130IS GM1.00B

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    Offline reyalp

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #426 on: 29 / December / 2011, 22:58:49 »
    I tested it at 20s and at 30s and at 45s. results were within 15min of each other.
    If you can put the camera in display off/sleep mode between shots, that should save a lot of power. I'm not sure if this is possible with sx230 though. Looking at the manual it doesn't seem like there is a sleep function (unlike other cameras which let you assign it to the 'print' button), but perhaps you could turn the timeout down to 10 sec.
    Don't forget what the H stands for.

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    Offline fe50

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #427 on: 31 / December / 2011, 15:36:12 »
    If you can put the camera in display off/sleep mode between shots, that should save a lot of power.
    ...or switching to playback mode while waiting ;)


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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #428 on: 31 / December / 2011, 18:32:13 »
    ...or switching to playback mode while waiting ;)
    @fe50 :  This makes some sense but do you know if anyone has done any tests or measurements about the actual savings ?  You would have to trade off the time interval with the cost of running the lens in & out - the longer the interval between shots the more this becomes valuable I guess ?

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    Offline fe50

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    Re: PowerShot SX230 HS - Porting Thread
    « Reply #429 on: 31 / December / 2011, 19:50:14 »
    In playback mode, the sensor & some/most of the electronics is disabled, power consumption is much (3 - 4 x) lower than in record mode; disabling the backlight saves some additional mA, but not much...

    do you know if anyone has done any tests or measurements about the actual savings ?
    Yes, there must be some result in the shallows of this & the german forum, also with some nice diagrams...
    See also: http://chdk.wikia.com/wiki/Camera_Power_Consumption

    Quote
    You would have to trade off the time interval with the cost of running the lens in & out
    With Canon's power saving disabled the lens should stay extracted all the time when switching between record & playback mode...

    Edit:
    some more links...
    * http://chdk.wikia.com/wiki/External_AC_power_supply
    * http://chdk.setepontos.com/index.php?topic=3872.msg36293#msg36293
    « Last Edit: 31 / December / 2011, 19:55:23 by fe50 »

     

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