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Using SD card more than 4gb

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Offline Anoop Kumar

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Using SD card more than 4gb
« on: 02 / January / 2012, 06:37:59 »
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Hi I am new to CHDK, I got recently my new camera SX40 hs
I have following questions:
1. Can I use 8/16 GB card (As in newbie section its mentioned that CHDK works on only <4gb)

2.Which class of SDHC card should I buy for HD video and raw shooting

If you already used CHDK with Powershot SX40 hs please share your experience.

Appreciate your valuable comments.
Thanks,

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Offline mdebono

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Re: Using SD card more than 4gb
« Reply #1 on: 02 / January / 2012, 07:05:17 »
You will need to use 2 partitions when using SD cards larger than 4Gb. Have a look around, and I'm sure you'll find plenty of methods and tutorials on how to do this.

I suggest at least getting a class 6 card for video.
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Offline Anoop Kumar

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Re: Using SD card more than 4gb
« Reply #2 on: 02 / January / 2012, 07:43:11 »
Quote from: mdebono on 02 / January / 2012, 07:05:17
You will need to use 2 partitions when using SD cards larger than 4Gb. Have a look around, and I'm sure you'll find plenty of methods and tutorials on how to do this.

I suggest at least getting a class 6 card for video.

thanks., I have ordered Transcend 16gb SDHC class 10.  :)
I think it would be better if partitioning nor required.  8)

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Offline waterwingz

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Re: Using SD card more than 4gb
« Reply #3 on: 02 / January / 2012, 08:16:10 »
Quote from: mdebono on 02 / January / 2012, 07:05:17
You will need to use 2 partitions when using SD cards larger than 4Gb.
No longer true for recent cameras
Quote from: Anoop Kumar on 02 / January / 2012, 07:43:11
thanks., I have ordered Transcend 16gb SDHC class 10.  :)
I think it would be better if partitioning nor required.  8)
The sx40 is a 2011 camera - you do not need to partition cards larger than 4G with 2011 and newer cameras  In fact, it may not work if you do so - the dual partition support is typically left out of the CHDK code for those models.
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Offline mdebono

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Re: Using SD card more than 4gb
« Reply #4 on: 02 / January / 2012, 08:27:07 »
Quote from: waterwingz on 02 / January / 2012, 08:16:10
Quote from: mdebono on 02 / January / 2012, 07:05:17
You will need to use 2 partitions when using SD cards larger than 4Gb.
No longer true for recent cameras
Quote from: Anoop Kumar on 02 / January / 2012, 07:43:11
thanks., I have ordered Transcend 16gb SDHC class 10.  :)
I think it would be better if partitioning nor required.  8)
The sx40 is a 2011 camera - you do not need to partition cards larger than 4G with 2011 and newer cameras  In fact, it may not work if you do so - the dual partition support is typically left out of the CHDK code for those models.

Interesting! Didn't know that.

Which models are considered as 'recent' models? I only managed to get CHDK working on my G12 using the dual partition method.
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Offline Anoop Kumar

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Re: Using SD card more than 4gb
« Reply #5 on: 02 / January / 2012, 08:29:39 »
Great....  8) 8)  :D
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Offline fe50

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Re: Using SD card more than 4gb
« Reply #6 on: 02 / January / 2012, 08:34:58 »
Quote from: mdebono on 02 / January / 2012, 08:27:07
Which models are considered as 'recent' models?
Cameras released in/after 2011 with DryOS Rev #47 or higher can boot from FAT32 partitions

--> http://chdk.wikia.com/wiki/P-ID_%28Table%29
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