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Old Jan 13, 2010, 6:09 PM   #1
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Default 15MB/S card enough for high quality HD vids on SX1?

I have a class 4 15mb/s sandisk ultra and was wondering if I can use this in my SX1 with the movie mode quality set on high? Or do I need to buy a class 6 like the extreme III?
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Old Jan 13, 2010, 6:10 PM   #2
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Canon recommends a class 6 chip. But I have a friend that got good hd video using the ultra II. It is one of the faster class 4 chips.
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Old Jan 13, 2010, 6:14 PM   #3
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Thanks for the quick reply!
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Old Jan 13, 2010, 6:20 PM   #4
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If you already have it then I would just try it and see if it fills the buffer. It is going to be tight as the video is about 14mb/s so you might run into problems. It will stop recording if you max out the buffer so you will soon know.
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Old Jan 13, 2010, 6:28 PM   #5
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actually that is an excellent question. I have decided to test the speed of the ultra II. I forgot that the chip in my P&S is a ultra II. I have set up my t1i to video hd with the ultra II. I will let you know how it turns out.
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Old Jan 13, 2010, 6:46 PM   #6
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Potentially not going to help out as the T1i can be up to 20mb/s shooting in full HD and about 10mb/s in 720p.
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Old Jan 13, 2010, 6:50 PM   #7
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OK, I took a 1080p hd for 12 min, and have review the video. With the T1i the ultra II has no problems recording. I was playing music in the background. As I review the video, there were no hiccups with the songs that were recorded.

So with the smaller format of 720, I would suspect it will be no issue with for the ultra II either.
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Old Jan 13, 2010, 6:51 PM   #8
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Quote:
Originally Posted by shoturtle View Post
So with the smaller format of 720, I would suspect it will be no issue with for the ultra II either.
The SX1 is 1080, it is just a lower bit rate and will depend on the buffer clearing but seems it could be OK.
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Old Jan 13, 2010, 6:56 PM   #9
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If they put a buffer as good as the T1i into the SX1, I suspect you are correct Mark. But it was still an interesting test of the chips. I must say I did not expect the ultra II to perform like it did at 1080, my friend's camera only does 720.
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Old Jan 13, 2010, 6:59 PM   #10
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Ah, when you mentioned 720 I thought you were talking about the SX1, that makes sense.
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