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Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!

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Offline srsa_4c

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Re: Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!
« Reply #200 on: 06 / December / 2015, 11:35:29 »
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Updated the experimental patch to make it compatible with the CHDK 1.4 release source (and current trunk, since they are identical as of today).
It's still DryOS only (minus sx280).

It needs the script from the above linked post. It might be worth reading posts from the above link on, it does not appear to work very well on some cameras.

edit:
to clarify, videxp_chdk14_dryos_only.7z contains a source patch, so it's only for those who can build CHDK for themselves.
« Last Edit: 06 / December / 2015, 17:19:23 by srsa_4c »
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Offline siudym

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Re: Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!
« Reply #201 on: 22 / July / 2016, 00:59:48 »
Hello. I have a Canon IXUS 115 HS, and not quite sure if this script on it work? I tried to copy the script "videxp3.lua" SCRIPTS directory on my card, but it does not work (script terminated). My camera works with CHDK 101c and 101b - if anyone can prepare CHDK, which copies the SD card with a working videxp3.lua?

In the previous post is an attachment to 101a - but it did not work for me.

I ask for help because IXUS 115 does not even exposure compensation in video mode :( I therefore very important to me this script running.
« Last Edit: 22 / July / 2016, 01:01:33 by siudym »
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Offline srsa_4c

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Re: Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!
« Reply #202 on: 22 / July / 2016, 15:33:18 »
Quote from: siudym on 22 / July / 2016, 00:59:48
Hello. I have a Canon IXUS 115 HS, and not quite sure if this script on it work? I tried to copy the script "videxp3.lua" SCRIPTS directory on my card, but it does not work (script terminated). My camera works with CHDK 101c and 101b - if anyone can prepare CHDK, which copies the SD card with a working videxp3.lua?

In the previous post is an attachment to 101a - but it did not work for me.

I ask for help because IXUS 115 does not even exposure compensation in video mode :( I therefore very important to me this script running.
To use the mod in question, you need the version of the script that is attached to this post.
I tried out briefly the modded CHDK and that script. To use it successfully, you need to lock exposure prior to running the script (press half shoot and "up", AEL will be displayed on the LCD). With running script, you start and stop recording with the SET button. After recording starts, adjust ISO and exposure time, otherwise exposure will be incorrect. Do not touch the Av value as the camera doesn't have adjustable aperture.

The attached special build only supports the locked SD card method.
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Offline leppp

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Re: Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!
« Reply #203 on: 08 / October / 2016, 11:27:16 »
Modified the script so it works like ae/af lock on ixus 115hs. (so i dont have to change iso and tv values every time. Values doesnt seem to be correct aswell)


works like this:
1. start script
2. pressing the set button locks exposure/af and starts recording
3. pressing set button stops recording and unlocks exposure
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Offline Nyumbu

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Re: Video Manual Control: ISO, APERTURE & SHUTTER SPEED CONTROL, PLEASE!!!!
« Reply #204 on: 26 / July / 2018, 06:04:14 »
All these scripts do not work well with my IXUS55.
Mainly problems due to ISO: it is too large and does not change, despite the changing values on the LCD screen. because of this, noise, overexposure and distortion appeared.
managed to remove this bug only by changing line "sv_table"
Code: [Select]
    sv_table    = { 10, 30, 50, 80, 100, 200, 300, 400 }
  BUT now values do not changes (digits on the LCD screen) - only 10, but ISO changes.
How do I make the digits display the value of ISO?
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