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Canon 7D Partial Video Corruption

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Casey J Porter
Canon 7D Partial Video Corruption
on Oct 16, 2012 at 4:21:25 pm

I've been shooting over 30 short introductions for a client to use for their media. This has happened twice so far and that is what ever is moving the most in frame, a locked off shot with someone talking, the face is corrupt for only about two seconds then it clears back up. But that corruption covered the whole face. I recently upgraded to the latest firmware and was wondering if that has anything to do with it? On another shoot I also filmed a car driving into frame and the same thing happened, corruption only over the moving car for about two seconds. All this happened after the upgrade.

Any ideas?

Thank You.


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Al Bergstein
Re: Canon 7D Partial Video Corruption
on Oct 17, 2012 at 3:05:54 pm

Have upgraded, no sign of corruption. What cards are you using?

Al


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Casey J Porter
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 12:17:07 am

Promaster CF, two 8GB, two 16GB.


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Al Bergstein
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 12:31:59 am

Professional or Performance?

Also, if the cards are at fault, as I understand it, the Promasters have a lifetime warranty. Perhaps you should return one and see if it's the card?

I've read so many horror stories of card failures, and I have had bad luck with Lexmark for example, that I've found Sandisk Extreme Pro's to be bullet proof, so I stay with them now. I've never experienced a card failure with them, and that was not true with Lexmark.

Good luck.

Al


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Casey J Porter
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 2:04:37 am

Awesome. Thank you very much. I'm going to contact Promaster and get with them.


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Terence Kearns
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 3:16:51 am

And always roll tape with a backup camera. That's what my 500D is for. flash cards aren't really reliable enough for "mission critical" applications (like one-time only shoots).


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Al Bergstein
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 5:41:15 am

I shoot plenty of 'one time shoots' with cards. I don't worry about cards at all since Sandisk. I would never shoot a backup 'a' with tape, absurd. If i'm concerned, I step up to an xf105/305 with dual cf card slots, and mirroring.

But i'm not saying that his problem might not be the camera. Start with the most likely failure point.

Al


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Terence Kearns
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 7:52:29 am

"roll tape" is a figure of speech. I thought that was obvious.


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Ervin Tia
Re: Canon 7D Partial Video Corruption
on Oct 18, 2012 at 11:25:00 pm

I'm not sure if you're doing it already, a card reformat ensures a clean slate (card), helps reduce glitches.

I usually do it before any major shoot. Important to do it in the device (camera).

---------------
Ervz | Check out some videos I helped produce.
https://vimeo.com/ervzman/videos


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Al Bergstein
Re: Canon 7D Partial Video Corruption
on Oct 19, 2012 at 12:32:56 am

That's true, and something we didn't ask about. If you aren't doing that, that could be the root cause of your problems. We sort of assumed you weren't doing that.

Al


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