Building a mult-camera rig - page 21 - Hotwire! Hardware Mods, Accessories and Insights - CHDK Forum
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Building a mult-camera rig

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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #200 on: 25 / September / 2014, 08:07:09 »
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@reyalp - you are right , I have tested it on G12 and it works
But it isn't working with BC script (don't know if it the cause or o haven't find the exect values )

@waterwings - can u confirm it isn't the custom fw /script ?

Regards
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Offline reyalp

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #201 on: 27 / September / 2014, 01:22:24 »
Quote from: novsela on 24 / September / 2014, 04:37:55
it mention that it is not supported yet in LUA
Oops you're right. It just sets the propcase, so in Lua you can just use set_prop. Something like
Code: [Select]
!mc:cmdwait('call set_prop(require("propcase").RESOLUTION,0)')
would set the largest size. Note above is off the top of my head, not actually tested.

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@reyalp - you are right , I have tested it on G12 and it works
But it isn't working with BC script (don't know if it the cause or o haven't find the exect values )
I'm sorry, I don't know what this is referring to.
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #202 on: 27 / September / 2014, 04:37:11 »
@reyalp - Thx !!!! it is working
just needed to make little change fitting it to BC script

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-e"exec bc=require('bcamHost') bc:command('lua set_prop(require("propcase").RESOLUTION,0)') bc:shoot()
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #203 on: 25 / October / 2014, 15:00:08 »
we continue to work on the system

we found that by using 3 tennis ball  hung with wire  we get nice calibration
first we need to zoom as much as possible and than calibrate.

Another issue that came up, is Lens distortion, after all it is cheap cameras  :(
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Offline reyalp

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #204 on: 25 / October / 2014, 18:17:44 »
Quote from: novsela on 25 / October / 2014, 15:00:08
Another issue that came up, is Lens distortion, after all it is cheap cameras  :(
I see you've already posted over there, but for the benefit future readers, this issue is discussed over in mphx thread: http://chdk.setepontos.com/index.php?topic=11667.msg117482#msg117482
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #205 on: 26 / October / 2014, 07:56:38 »
@waterwings - can u recompile FW with the zoom distortion fix ?
I am attaching the link to other thread that describe the solution 

http://chdk.setepontos.com/index.php?topic=10626.150

Regard
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Offline srsa_4c

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #206 on: 26 / October / 2014, 08:38:56 »
Quote from: novsela on 26 / October / 2014, 07:56:38
recompile FW with the zoom distortion fix
Current 1.3 releases already have that "fix".
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #207 on: 26 / October / 2014, 09:08:43 »
@ srsa_4c - I am using custom ROM prepared by WATERWINGS with remote shoot and BC remote (you are welcome to read earlier posts on this thread to learn about this custom rom)

@ Waterwings, Hope you have the time to recompile new FW with zoom distortion patch

Regards
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Offline srsa_4c

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #208 on: 26 / October / 2014, 09:19:02 »
Quote from: novsela on 26 / October / 2014, 09:08:43
@ srsa_4c - I am using custom ROM prepared by WATERWINGS with remote shoot and BC remote (you are welcome to read earlier posts on this thread to learn about this custom rom)
Okay, if your build is earlier than rev. 3586 (21 / August), please make some test shots in a few zoom positions (wide angle, mid1, mid2, tele) for later comparison. "mphx" claims that the fix is not effective.

edit: use set_zoom for the test shots, not the zoom lever.
« Last Edit: 26 / October / 2014, 09:34:44 by srsa_4c »
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Offline waterwingz

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #209 on: 26 / October / 2014, 12:57:57 »
Quote from: novsela on 26 / October / 2014, 09:08:43
@ Waterwings, Hope you have the time to recompile new FW with zoom distortion patch
Quote from: novsela on 26 / October / 2014, 07:56:38
@waterwings - can u recompile FW with the zoom distortion fix ?
The required code is a standard part of the 1.3.0 release of CHDK and has been for some time. 

It does require a build option to be enabled (CAM_ALLOWS_USB_PORT_FORCING) and a small code change to the kbd.c file for each camera so it has only been enabled on three cameras so far (  A1200,  D10,  A2500 ).

To use it requires a one line addition to your script.  See :  usb_force_active()
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