Having problems with downloading images from the Camera - RAW Shooting and Processing - CHDK Forum
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Having problems with downloading images from the Camera

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Offline mjqs

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Having problems with downloading images from the Camera
« on: 24 / November / 2012, 07:23:10 »
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Hi there! I am new here. And I am new to CHDK as well. I have a Canon SX20is (firmware version 1.02D) and I use CHDK on it.
CHDK is loaded in to camera with "bootable SD card method". So that I have two partitions in the 16 GB SD card. When the SD card is inserted in to the PC it shows only the FAT16 partition. Since Windows can't access other partition where CHDK records the images, it is very difficult for me to download the images to the PC. I have to swap the partitions using CHDK or have to go through another software in order to retrieve the images. I found this very tedious and I do not like to remove and put back the SD card in to camera frequently.
I'll be grateful if anyone can explain me how to download the images through my USB cable ? Thanks in advance!
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Offline ahull

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Re: Having problems with downloading images from the Camera
« Reply #1 on: 24 / November / 2012, 08:21:29 »
Well, not having used Windows much recently, being a Linux user, I am no expert, however try these instructions.

http://www.sevenforums.com/tutorials/11253-mount-drives-partitions-folder.html

You may need to resort to a batch file to do the magic for you however. Google is your friend for this one.  :haha
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Offline mjqs

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Re: Having problems with downloading images from the Camera
« Reply #2 on: 24 / November / 2012, 12:40:12 »
Thanks a lot for the guidance. I'll try it out.
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Offline reyalp

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Re: Having problems with downloading images from the Camera
« Reply #3 on: 24 / November / 2012, 17:38:00 »
I don't think ahulls suggestion will help, since windows doesn't generally recognize partitions on removable media.

You should be able to download jpeg images over USB without any problem using normal windows software. Downloading raw / DNG using standard software is a bit trickier. Whether it shows up over USB depends on the combination of prefix and extension you use for the files, and which combination works may depend on your camera. On recent cameras, the .DNG extension will never be visible. A combination like CRW_nnnn.CR2 is probably a good place to start. You can also try using the same prefix/extension the camera uses for movies. If you are actually shooting DNG, you will likely need to rename the files after downloading them. Finally, for the files to show up, you need to be sure the camera has been rebooted between taking the pictures and connecting the USB cable.

You can also download files using the chdk ptp extension: http://chdk.wikia.com/wiki/PTP_Extension this allows you to download any file, but requires you to use CHDK specific software to do it, and may prevent you from using normal software to access the camera.

If your PC doesn't see the camera at all when you plug in the USB cable, this may be due to having the USB remote setting enabled.

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