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FORUMS Canon Cameras, Lenses & Accessories Small Compact Digitals by Canon 
Thread started 17 Aug 2012 (Friday) 20:31
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SX-1 shutting down with video due to heat???

 
Ralph ­ III
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Aug 17, 2012 20:31 |  #1

Hello,

My Canon SX-1 is shutting down after about 10-20 minutes with HD video and apparently due to internal heat build up? I could feel the side of the camera was getting warm and the batteries were quite hot when removed?

Is there an issue with using standard Duracell Alkaline "AA" as I've always used Eneloops but those are charging at the moment? This has never happened before.

Any insight would be appreciated.


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imjason
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Aug 17, 2012 21:39 |  #2

were the batteries (duracells) dead? I think thats more likely than the camera overheating as alkalines drain fairly quickly in cameras. if the camera was overheating, especially the sensor, you will start getting noise, distortion and weird colors in your video.


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Ralph ­ III
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Aug 17, 2012 22:00 as a reply to  @ imjason's post |  #3

No, the batteries were all brand new and tested. I also tried the eneloops but again it just stops recording at various points. It doesn't actually shut down but instead stops recording...

I purchased a 32gb SDHC card (10) today and wanted to test it running for the listed 1.5 hrs. It first ran to 50 minutes before stopping, which is how long my 16gb card goes, also SDHC (10). I've never had an issue with it stopping unexpectedly.

I've tried different batteries (including with/without memory battery) and different SD cards. It just stops recording at some point and at different times, from 5 minutes up to 25 min +.

The eneloop batteries stay much cooler so it may not be a heat issue. The video runs perfectly until it just stops...


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imjason
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Aug 18, 2012 00:06 |  #4

check out page 25 of your manual.

the cap is at 4gb per video. so it doesnt matter what card size you use, the cap size is at 4gb per video. check your file sizes, see if they are 4gb. remember if youre not using HD, your file sizes are smaller thus you can record longer before hitting the cap.

for compatibility reasons, this is the limitation of the file system the camera uses.


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Ralph ­ III
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Aug 18, 2012 08:55 |  #5

imjason wrote in post #14873252 (external link)
check out page 25 of your manual.

the cap is at 4gb per video. so it doesnt matter what card size you use, the cap size is at 4gb per video. check your file sizes, see if they are 4gb. remember if youre not using HD, your file sizes are smaller thus you can record longer before hitting the cap.

for compatibility reasons, this is the limitation of the file system the camera uses.

Thanks imjason for the input but that's not the issue. As otherwise, it would stop recording at the same time each time. At the moment, it will record for varying amounts of time and then just stop recording for no apparent reason.

I do see where the camera is limited to a 4gb video clip or up to 1hr irrespective, but I'm not even coming close to those limitations now and I've always been able to record (exactly and predictably) up to 50 minutes, which is the limitation of my 16gb card in HD mode. At the moment it may record for 5 minutes, then turn around and record for 35 minutes, then 18 minutes, etc; before stopping...

Ralph


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Jon
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Aug 18, 2012 09:26 |  #6

You may hit 4 GB at different times depending on how complex the image is or what ISO you're using. But the camera also will shut down if the sensor is getting too hot, and if the batteries are getting warm, this would certainly be a factor. The memory battery won't be a factor, however. It only really does anything when the camera's turned off and/or you've removed the AA cells. It could be that your new 32 GB card, although claiming to be "Class 10", isn't living up to its rating. This may be due to a bad card, off-brand hyping of features or to the card being counterfeit.


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pwm2
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Aug 18, 2012 09:35 |  #7

The inner resistance in the batteries affects how warm the batteries gets when you load them heavily for long times. So it can matter what batteries you use.


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imjason
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Aug 18, 2012 12:35 |  #8

Ralph, how often do you do low level formats of your cards? class 10 cards are rated at 10mb per second on a non-fragmented state while class 6 cards are rated at 6mb per second in a fragmented state. so its quite possible that even if your card is class 10, it could be running significantly slower due to fragmentation. perform a low level format with your camera to see if that helps.

also to be clear, is your camera turning off fully, or are you just saying that the video stops recording at random durations but the camera stays on? or are you experiencing both issues too?


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dcorban
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Aug 19, 2012 07:34 |  #9

What brand is your SD card? I strongly suggest using SanDisk, as I find them to outperform their claimed specs. The majority of "brands" out there benchmark below their claimed class. If the speed drops too much below class 6, the camera will stop recording.

I use a SanDisk class 6 and record HD video up to the 4GB limit on my S100 with no issue.




  
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SX-1 shutting down with video due to heat???
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