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Old 1st of April 2010 (Thu)   #1
Downs Photography
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Default Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Compact flash sandisk extreme III 8 gig 30mb

http://www.amazon.com/SanDisk-Extrem...0145966&sr=8-5

or sandisk extreme 16 gig 60mb

http://www.amazon.com/SanDisk-Extrem...0145497&sr=8-1

Only a 40 dollar price difference. Which one should I buy?
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Old 1st of April 2010 (Thu)   #2
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Is there a reason you would *not* buy the larger card? Especially if you shoot raw?

FWIW The Sandisk Extreme 32GB is down to $188.77. The prices on these cards have been slowly but steadily declining since they came out.

http://www.amazon.com/Sandisk-32GB-E...0148056&sr=1-2
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Old 1st of April 2010 (Thu)   #3
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

I personally like larger faster cards, some folks like smaller cards because they fear card failure.
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Old 1st of April 2010 (Thu)   #4
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

personally, i bought the extreme pro, but there were a lot of people saying the ExtremeIII worked well enough for them. Best thing, imho to try is some burst shots and see how fast the buffer runs out; or try some 1080P video and see if you get any major jarring or dropped frames.

but seeing as you're comparing an 8GB to a 16GB, I'd go with the 16GB just in general. The 7D eats up memory pretty fast (less than 400 shots, iirc if you do RAW+JPG) ... and that doesn't even consider any video you may take.

Extreme 16GB would be my vote. Or if you're willing to pay the toll, its $180 for the ExtremePro 16GB, but admittedly, it's probably not needed in most cases.
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Old 1st of April 2010 (Thu)   #5
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

okat thx guys caused I bought the 4gig extreme 3 from best buy for 52 dollars. btw is the extreme better then the extreme 3
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Old 1st of April 2010 (Thu)   #6
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Wacky thing with the old Extreme III is that often one sees it for sale for *more* than the current Extreme!

I recently bought a 32GB Extreme - the price at the time was a few more $ than the current $188 or so. I bought it for capacity -- with today's DSLR's the write speed has some effect on the buffer flush rate, but depending on one's shooting style that's often not a big concern. The faster cards do read faster of course in a quality card reader, but as for shooting concerns, I would have been happy with a 32GB or 64GB ExtremeIV-level card, had Sandisk seen fit to sell them. Cards are too easy to loose - the less I have to change them around, the better.
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Old 1st of April 2010 (Thu)   #7
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Quote:
Originally Posted by Blockburner28 View Post
okat thx guys caused I bought the 4gig extreme 3 from best buy for 52 dollars. btw is the extreme better then the extreme 3
It will write faster in the camera, and read images faster off via a card reader. The 4GB card for $52 gets you roughly 1/4 the space of the 16GB card you linked to, at fully half the cost. This isn't a good deal by any means. Is the $50 difference that dear to you right now?
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Old 1st of April 2010 (Thu)   #8
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

My biggest and fastest card.

http://www.newegg.com/Product/Produc...82E16820208528

Done deal. Works like a dream and not over priced like SanDisk as been getting.

If not, go to Costco and get you an 8GB Sandisk Ultra (rated 30mb/s) for $26.
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Old 1st of April 2010 (Thu)   #9
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

I just got a couple 16G Extreme (60MB/s) cards in the last couple weeks. The buffer clears so much faster on my 5D2 and the 7D I rented for a weekend over the Extreme IIIs (Both 20MB/s and 30MB/s variants) I have in various sizes. It is a huge difference. For ~$100 you can't go wrong. The 32G versions are not quite twice that as well.

Buying a card that's half the speed and a quarter the capacity is crazy for half the cost.
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Old 1st of April 2010 (Thu)   #10
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

I got 32Gb A-Data 233x - and I love it. Can record hi-defs with no problems. It's really fast, and no shutter lag was noticed. Its can handle really fast write/read speeds.
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Old 1st of April 2010 (Thu)   #11
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

I do not believe you really need a high speed card for video, where you need the high speed if for that 8 fps continuous shutter.

I know I successfully recorded 1080P on some older cards, Sandisk Ultra II 8GB cards.

The camera slowed down when I went to do full RAW images at 8 fps.

I popped in a 60MB/s Extreme and it sped things up a bit.
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Old 1st of April 2010 (Thu)   #12
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

thanks for the info everyone. I went with the 16gig sandisk extreme.
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Old 10th of September 2010 (Fri)   #13
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

So would a Kingston 133X 16GB card work for video on 5D2 or 7D?
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Old 10th of September 2010 (Fri)   #14
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Quote:
Originally Posted by JChin View Post
So would a Kingston 133X 16GB card work for video on 5D2 or 7D?
That is plenty for 1080p video. 133x = 20MBps write speed, and Canon 7D video requires only 6MBps.

As mentioned earlier in the thread, the card speed will come into play only when you shoot RAW images continuously. 133x would be terribly slow if you shoot too many RAW bursts on 5D2 or 7D.
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Old 10th of September 2010 (Fri)   #15
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Default Re: Canon 7D Compact flash card(8gig 30mb vs 16gig 60mb)

Quote:
Originally Posted by JChin View Post
So would a Kingston 133X 16GB card work for video on 5D2 or 7D?
It will work. The only problem w/ that write speed is that you canNOT shoot video + stills at the same time.

I used an older Transcend 133x 16gb card for 6 months before switching to the Transcend 400x 32gb card. My video used to stall within 15-30 seconds after trying to take a still in between (RAW+JPG) and would then have to start a new video clip.

The 400x 32gb card has been able to capture stills while recording 1080 w/o any issues.
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