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CHDK parameters for IXUS 140 for aerial photos

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Offline unknowjuzam

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CHDK parameters for IXUS 140 for aerial photos
« on: 26 / May / 2015, 05:36:15 »
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Hello everyone , I'm using a Canon IXUS 140 with CHDK to take aerial photos aboard an rc aircraft at a height of about 110-120m , I can not find the correct parameters to come good pictures ( always moves , or too bright , or not very bright ) someone can give me a link where i can read the parameters to be included in CHDK to have good pictures in this way ? thanks and sorry for my English .
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Offline waterwingz

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Re: CHDK parameters for IXUS 140 for aerial photos
« Reply #1 on: 26 / May / 2015, 06:06:05 »
Can you provide more details about how you are using CHDK?  It is hard to help you if we do not know what you are doing.  For example,  are you using a script?  If so, which one?

Are you using this one :  kap_uav.lua ?
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Offline unknowjuzam

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Re: CHDK parameters for IXUS 140 for aerial photos
« Reply #2 on: 26 / May / 2015, 07:22:40 »
i use DroneMapper Intervallometer, i used this guide:

https://conservationdrones.files.wordpress.com/2013/01/dronemapper_chdk.pdf

but i dont have settings for my camera, only for sx260hs.

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Offline waterwingz

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Re: CHDK parameters for IXUS 140 for aerial photos
« Reply #3 on: 26 / May / 2015, 08:46:12 »
Quote from: unknowjuzam on 26 / May / 2015, 07:22:40
i use DroneMapper Intervallometer, i used this guide:
https://conservationdrones.files.wordpress.com/2013/01/dronemapper_chdk.pdf
but i dont have settings for my camera, only for sx260hs.
That script is quite primitive and will not give good images. 

Here's the settings you mentioned for the sx260 : https://conservationdrones.files.wordpress.com/2013/01/dronemapper_chdk_settings-screenshots.pdf
I would recommend ignoring these camera setup suggestions and just place your camera into "Sports" mode so that it shoots with a high shutter speed.

However, if you want to try them anyway,  you might  be able to use the settings show in the first picture (although the CHDK User Interface has changed slightly since those images were recorded).   Ignore the rest of the images for the camera GPS as I don't believe your camera has them. Note that the 14th image that suggests using AutoISO is wrong - with a fixed shutter speed this will give the wrong exposure.  Set it to ISO800 and hope that works for a sunny day.

If you are serious about getting good pictures, the script that I linked above would be much better for your purpose.   Just use its default settings if you don't want to spend any time understanding it.  Those settings will be 100x better than the dronemapper setup.



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Offline unknowjuzam

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Re: CHDK parameters for IXUS 140 for aerial photos
« Reply #4 on: 27 / May / 2015, 04:45:15 »
thanks for your answer! i ll try that script :)
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