SDHC- why ever use class 10 for video?

S

shortnstout

Well-known member
I have a t2i and am looking for a new SDHC card. I want a 32GB. Anyway, why do so many people use Class 10 cards (which are more expensive)? Aren't Class 6 plenty fast enough in all video situations with this camera? I have noticed a few moments where the footage seems to skip slightly if there is a sudden handheld movement- I don't know if this could be helped by a Class 10?
Also, I need the most reliable card- and I can't tell if Transcend is any less reliable than Sandisk. I know this has been talked about, but I haven't ready anything confirmed on this.
 
Faster cards can upload to a computer faster, and it's a bit of future insurance. If you buy a camera with a higher bitrate, or modify an existing camera with firmware changes, it would be nice to be able to use the same cards you already own. For some product lines class 10 is a very small price increase, which I think is worth it, though I also own 6's. I don't use a t2i, so I can't say how well they work on that camera.
 
Cassius said:
Faster cards can upload to a computer faster, and it's a bit of future insurance. If you buy a camera with a higher bitrate, or modify an existing camera with firmware changes, it would be nice to be able to use the same cards you already own. For some product lines class 10 is a very small price increase, which I think is worth it, though I also own 6's. I don't use a t2i, so I can't say how well they work on that camera.
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I second that. I have a T2i, and while it is rated for class 6 for video, I figure that if I buy the class 10 cards, I will be able to use them for other cameras in the future. I have also taken this attitude for lenses for this camera and am NOT buying lenses designed for the small chip cameras. I am buying lenses that will cover the FF35mm frame. I like the T2i, but I just can't justify tricking it out with gear that I can not use on possible other cameras that I know are just around the corner.
 
i've got a pretty cheap class 6 card too, it has never shown the buffer warning when filming only, but if i take a photo while filming (full raw) the buffer warning goes up and it stops recording. on the 7d we have at work we have sandisk cf cards with 30mb/sec and this never happens. so faster cards can have advantages, but as you specifically asked for video, if you never take photos while filming, this may not be an issue for you.

regards,
niklas
 
I have an 8GB class 4 card and it works fine for video on my T2i. Since the video pauses anyway when you take a still shoot, it is not that useful to me, so I don't do it. I have several class 6 cards and the work fine too for just recording video.

What's up with the SDXC cards, does anybody have some of these new cards?
 
I two class 10 16gb adata cards from microcenter for a good deal and haven't had any problems with them. Wasn't much more than a class 6 so I figured id get these. I also have class 10 8gb sandisk and the adatas work as well as the sandisk.
 
Decided to go with a 32GB class 6 transcend because I needed a 32GB card and could see any hard evidence that either Sandisk or class 10 is going to help me in anyway.
 
ryanfilms said:
i have an 8gb class 4 card and it works fine for video on my t2i.
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deepfocus88 said:
+1 no problems to report of.
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Uh oh, I just ran into a problem. So far, I've been using three Sandisk class 4 8gb cards with no problems.

I just bought two more from Costco, same models as previous. With those, I'm getting buffer warnings and the camera stops filming after a few seconds. Did I get a bad batch, or did Sandisk change something? Either way they're going back, just don't know if I should exchange or try and get refund.
 
I bought a class 10 16 gig for my t2i.

Then one day I decided to try out my old unrated 16 gig sdhc (3 of them, at $19 eacg on sale)), that were rattling around in my bag. I was so sure I'd have dropped frames in my footage.

Surprise! They seem to work great. This is video, though. Shooting raw stills seem to be slower than with a class 10 (busy signal after a few shots).

But my primary reason is video. Was so happy I dumped the HVX200 and its 4 gig card. Glad I did'nt invest in more p2 cards, which I considered ultra expensive.
 
David G. Smith said:
I second that. I have a T2i, and while it is rated for class 6 for video, I figure that if I buy the class 10 cards, I will be able to use them for other cameras in the future. I have also taken this attitude for lenses for this camera and am NOT buying lenses designed for the small chip cameras. I am buying lenses that will cover the FF35mm frame. I like the T2i, but I just can't justify tricking it out with gear that I can not use on possible other cameras that I know are just around the corner.
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I figure Class 10 cards provide an additional level of protective buffer, and it suits shooting continuous in RAW before the camera's memory fills up. I've been able to shoot video fine with Class 4 cards, without a hitch.

I disagree about your choice to stay away from EF-S lenses though. EF-S lenses provide additional capability and features you don't find in EF lenses. And I don't think it's really a matter of future-proofing your purchases. I'm not going to live forever, so I use the tools best suited for my particular needs and don't have this desire to hold on to things for some future that hasn't been written yet. You can always buy and sell lenses as you need them.
 
Any other reports of problems using Transcend Class 10 16 GB cards? You can find these online for just over $30. IMHO unless people are seeing problem with these Transcends it's hard to justify buying SanDisk cards which cost over 3x as much.
 
My transcend SDHD card has been the only card that has ever failed on me, and it erased everything on it. I sent it in to be replaced, and the new one seems to work fine, so it may have just been a dud, but I noticed in reviews many people having the same issues. This may all be resolved now, since I bought it about a year ago, but it's probably worth reading current reviews to see if people are still having that issue. I have 5 other SDHC cards and haven't ever had an issue with the other ones.
 
Cassius said:
Faster cards can upload to a computer faster, and it's a bit of future insurance. If you buy a camera with a higher bitrate, or modify an existing camera with firmware changes, it would be nice to be able to use the same cards you already own. For some product lines class 10 is a very small price increase, which I think is worth it, though I also own 6's. I don't use a t2i, so I can't say how well they work on that camera.
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Agreed; i use 8GB class 10's in the T2i units, 6 of them for all 3 T2i's because we can be shooting while uploading. Class 6 might work, but they upload WAY faster, so we can copy and clear the cards long before we need them.
 
I have a total of 6 Class 10 16gb Transcend cards that I used for a wedding video shoot. They all worked well with no buffer issues, but I did find some interesting things in the last couple weeks about this card. When yer using it for video, DO NOT delete footage during a recording session, and DO NOT take pictures with the same card. By that I mean, dont shoot some video, then stop and replay it back to see if it came out okay or not. This for some reason puts a strain on the card and more buffer meter warnings will show, and recording sessions will stop randomly. Yer best bet, and it worked for me, is to try and not delete anything or take pictures on the same card.
 
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