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SX40HS porting thread

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Offline andrewtansj

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Re: SX40HS porting thread
« Reply #70 on: 08 / December / 2011, 03:48:11 »
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Quote from: philmoz on 30 / November / 2011, 04:09:58
Initial test version for SX40HS firmware 1.00i attached.

Phil.
Thanks! tried it, seems to work! tried to shoot raw but can't seem to open the CR2 file...
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Offline waterwingz

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Re: SX40HS porting thread
« Reply #71 on: 08 / December / 2011, 10:31:51 »
Quote from: andrewtansj on 08 / December / 2011, 03:48:11
Thanks! tried it, seems to work! tried to shoot raw but can't seem to open the CR2 file...
Rather than me reposting, take a look a this ?

http://chdk.setepontos.com/index.php?topic=7208.msg77390#msg77390

Does that help ?
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline davemt

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Re: SX40HS porting thread
« Reply #72 on: 08 / December / 2011, 19:50:52 »
[quote Does that help ?
[/quote]

Thank you waterwingz, it sure helped me.  I have a lot to learn.  :)
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Offline oussi123

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Re: SX40HS porting thread
« Reply #73 on: 03 / January / 2012, 07:20:44 »
any one noticed a barrel effect in raw or it's just my camera
i am on 1..D version had chdk build 1500 the jpg  looks fine but the raw look with big big barrel i will upload a jpeg and raw sample
but did any one notice or it's my camera only?
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Offline waterwingz

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Re: SX40HS porting thread
« Reply #74 on: 03 / January / 2012, 09:28:27 »
Quote from: oussi123 on 03 / January / 2012, 07:20:44
any one noticed a barrel effect in raw or it's just my camera i am on 1..D version had chdk build 1500 the jpg  looks fine but the raw look with big big barrel i will upload a jpeg and raw sample but did any one notice or it's my camera only?
Your camera performs several corrections in software when it coverts the data from the sensor into a JPEG, including correction of barrel distortion.  It is typically worse when the lens is zoomed to the wide angle position.  Doing this allows the manufacturer to use less expensive lens systems and still get acceptable results for most people.

CHDK RAW is just the data taken directly from the sensor - no corrections - so its up to you to do it in software on your PC.   Search this forum and you will find a lot of discussion on this topic.
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Offline oussi123

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Re: SX40HS porting thread
« Reply #75 on: 03 / January / 2012, 09:57:13 »
thank you for the response
still any one has a profile for the lens
i have tried with light room with no avail
i could not make the street look straight.
anyone have working custom profile...(suggested numbers)
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Offline longtalker

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Re: SX40HS porting thread
« Reply #76 on: 14 / January / 2012, 19:48:17 »
Hello everyone,

I was trying to find a description of what exactly is different in the CHDK firmware for the SX40 in comparison to the original firmware - but I could not find any such description on this website. I'm sure this must be written somewhere, so could anyone please point me to an address where the exact changes in this version are presented? Many thanks!

Longtalker
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Offline waterwingz

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Re: SX40HS porting thread
« Reply #77 on: 14 / January / 2012, 19:52:15 »
Quote from: longtalker on 14 / January / 2012, 19:48:17
I was trying to find a description of what exactly is different in the CHDK firmware for the SX40 in comparison to the original firmware - but I could not find any such description on this website. I'm sure this must be written somewhere, so could anyone please point me to an address where the exact changes in this version are presented?
CHDK is not firmware.  Its software that gets loaded into a camera's RAM and act to augment the camera's firmware.  Which would be why you cannot find what you are looking for.
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Offline longtalker

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Re: SX40HS porting thread
« Reply #78 on: 14 / January / 2012, 20:02:37 »
Right - that's what I meant, sorry :-p So where can I see exactly what the CHDK adds to the firmware?
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Offline waterwingz

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Re: SX40HS porting thread
« Reply #79 on: 14 / January / 2012, 20:04:26 »
Quote from: longtalker on 14 / January / 2012, 20:02:37
Right - that's what I meant, sorry :-p So where can I see exactly what the CHDK adds to the firmware?
link> CHDK in Brief
link> CHDK User Quick Start Guide
link> CHDK User Manual
link> CHDK for Dummies
link> CHDK Wiki FAQ
link> CHDK Firmware Usage
link> CHDK Installation Guide
link> One Page Users Guide
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