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Sandisk Ultra Vs Extreme?

APhamX 3,610 557 May 14, 2012 at 07:27 PM More SanDisk Deals
So I film a lot of videos with my t3i and take a lot of photos. And though it is recommended I should take raw photos, especially on special occasions I find it difficult as it takes a while to write and the files are large. So I'm deciding to move on from my 16gb transcends and move to a 64GB sandisk ultra or get a 32gb sandisk extreme (then I would get a usb 3.0 reader as well). Do you think the t3i would take advantage of the extreme card's write speed? The read speed on both cards are fairly the same (40 mb/s vs 45 mb/s).

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#2
Yes it will be a faster write. Its 45 vs 40.
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#3
afaik the t3i doesn't support the uber-fast data speeds anyways, so it won't matter
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#4
They are both good cards in theory. They have confused the buyer so much now though by having so many different speed of cards under the same brand. It use to be easy. Links to exactly what you are looking at would be helpful.

What is the quoted speed of the card you have now?

Where are you experiencing slowness? The camera has a pretty decent buffer built in so unless you are busting several shots in Full Raw then you probably wont much notice the speed during the write. You will when you are pulling them off using a card reader (Way better than doing it via the camera/cable). Most newer model Canons also come with the ability to take different size RAW files. For most situations I find that you just don't need the full 18mp RAW image and the 12mp mRAW my 7D takes is perfectly fine for 80% of situations. That is where I shoot most of the time.

I just ended up buying an 8gb version of http://www.adorama.com/ILXPCF60016N.html Different format than your camera uses but they make SD cards too in that line. It is insanely fast. 90mb/s read and something like 70mb/s write. I can take 30+ full size raw in high speed burst (7fps) before it slows down, and then it will take 2 pictures, miss one, take 2, etc all day long. I am impressed. While prices have dropped on cards, the better cards still cost <$1 per GB generally.

I am also not a fan of these huge flash cards. Many pros are not either. The reason is, they fail, and say for instance you have one card and are taking all your vacation photos on it. I know at least 3 people who have had card corruption/failure and they loose all their photos. This seems to be worse on SD cards than CF, not sure if its a size thing or not. You are kind of putting all your eggs in one basket. I much prefer a couple of smaller cards to spread out the photos, and I even go further by taking a laptop and small external drive on extended trips to have more than one copy.

I can also recommend an excellent USB3 card reader if you need one. Reads tons of formats and is pretty cheap. Most of the readers I saw a few months ago did not have great reviews.
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#5
Quote from slapshot136 View Post :
afaik the t3i doesn't support the uber-fast data speeds anyways, so it won't matter

Incorrect statement... per Canon Technical support

The T3i is able to take advantage of cards rated for speeds up to 45MB/s which should be at least 2x faster than the fastest Class 10 cards and about 4.5x faster than a Class 10 card operating at minimum spec of 10MB/s. It should also be between 7-8x faster than a Class 6 card performing at the specified minimum 6MB/s speed. The manual may state Class 6 as the minimum speed for reliable HD video capture, but that it is most definitely not the fastest card supported by the camera.

The 45MB/sec card WILL BE FASTER by about 12.5%.
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Last edited by boltman2007 May 15, 2012 at 12:18 PM
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#6
I would probably buy this, http://slickdeals.net/f/4410822-SanDisk-Extreme-32GB-45MB-s-SDHC-34-99-at-Amazon?v=1 Its hitting the limit of that camera.
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#7
Quote from APhamX View Post :
So I film a lot of videos with my t3i and take a lot of photos. And though it is recommended I should take raw photos, especially on special occasions I find it difficult as it takes a while to write and the files are large. So I'm deciding to move on from my 16gb transcends and move to a 64GB sandisk ultra or get a 32gb sandisk extreme (then I would get a usb 3.0 reader as well). Do you think the t3i would take advantage of the extreme card's write speed? The read speed on both cards are fairly the same (40 mb/s vs 45 mb/s).
Quote from boltman2007 View Post :
Incorrect statement... per Canon Technical support

The T3i is able to take advantage of cards rated for speeds up to 45MB/s which should be at least 2x faster than the fastest Class 10 cards and about 4.5x faster than a Class 10 card operating at minimum spec of 10MB/s. It should also be between 7-8x faster than a Class 6 card performing at the specified minimum 6MB/s speed. The manual may state Class 6 as the minimum speed for reliable HD video capture, but that it is most definitely not the fastest card supported by the camera.

The 45MB/sec card WILL BE FASTER by about 12.5%.
Wish I saw this thread earlier.. see my analysis (1st post, example #2)
http://slickdeals.net/f/4371592-Analysis-The-best-SD-Card-MicroSD-for-your-situation?v=1

Quick Summary:

The SanDisk Extreme 45MB/s:
- In a USB 2.0 card reader in USB 2.0 port, will get 20MB/s read and 20MB/s write
- In a USB 2.0 card reader in USB 3.0 port, will get 20MB/s read and 20MB/s write
- In a USB 3.0 card reader in USB 2.0 port, will get 36MB/s read and 30MB/s write
- In a USB 3.0 card reader in USB 3.0 port, will get 45MB/s read and 43MB/s write


Example 2: SanDisk Ultra 30MB/s Class 10:
- In a USB 2.0 card reader in USB 2.0 port, will get 20MB/s read and 14MB/s write
- In a USB 2.0 card reader in USB 3.0 port, will get 20MB/s read and 14MB/s write
- In a USB 3.0 card reader in USB 2.0 port, will get 36MB/s read and 14MB/s write
- In a USB 3.0 card reader in USB 3.0 port, will get 40MB/s read and 14MB/s write
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#8
look for class 10
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#9
Quote from APhamX View Post :
So I film a lot of videos with my t3i and take a lot of photos. And though it is recommended I should take raw photos, especially on special occasions I find it difficult as it takes a while to write and the files are large. So I'm deciding to move on from my 16gb transcends and move to a 64GB sandisk ultra or get a 32gb sandisk extreme (then I would get a usb 3.0 reader as well). Do you think the t3i would take advantage of the extreme card's write speed? The read speed on both cards are fairly the same (40 mb/s vs 45 mb/s).
Quote from boltman2007 View Post :
Incorrect statement... per Canon Technical support

The T3i is able to take advantage of cards rated for speeds up to 45MB/s which should be at least 2x faster than the fastest Class 10 cards and about 4.5x faster than a Class 10 card operating at minimum spec of 10MB/s. It should also be between 7-8x faster than a Class 6 card performing at the specified minimum 6MB/s speed. The manual may state Class 6 as the minimum speed for reliable HD video capture, but that it is most definitely not the fastest card supported by the camera.

The 45MB/sec card WILL BE FASTER by about 12.5%.
I forgot to add that while the T2i / T3i / 60D / 5DM3 all have support for the UHS-I Bus, they do not implement the UHS-I Speed Class Bit required for super fast transfer

Therefore, in the T2i / T3i / 60D / 5DM3, all UHS-I cards are relegated back into backwards compatibility mode (a.k.a Class 10).
In this particular case, the T2i / T3i / 60D / 5DM3 can only write from camera to card at a max of around 22-25MB/s

With that said, the SanDisk Ultra 30MB/s will only write to the card @ about 14MB/s where as the Extreme 45MB/s will be around 22-25MB/s

Source:
<-- T2i / 60D / 5DM2 owner
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#10
Quote from AkumaX View Post :
I forgot to add that while the T2i / T3i / 60D / 5DM3 all have support for the UHS-I Bus, they do not implement the UHS-I Speed Class Bit required for super fast transfer

Therefore, in the T2i / T3i / 60D / 5DM3, all UHS-I cards are relegated back into backwards compatibility mode (a.k.a Class 10).
In this particular case, the T2i / T3i / 60D / 5DM3 can only write from camera to card at a max of around 22-25MB/s

With that said, the SanDisk Ultra 30MB/s will only write to the card @ about 14MB/s where as the Extreme 45MB/s will be around 22-25MB/s

Source:
<-- T2i / 60D / 5DM2 owner
Canon technical support department disagrees. Call them up and ask them if you don't believe me.

The T3i does have 45MB/sec support out of the box.
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#11
Quote from boltman2007 View Post :
Canon technical support department disagrees. Call them if you don't believe me.

The T3i does have 45MB/sec support out of the box.
I shouldn't have to "call Canon" to figure out whether the T3i supports UHS-I Speed Class 1 or not.
Doesn't that sound ridiculous in this day and age if internet searching?

Well, since I'm already here, I did the research for you. Naturally, you probably read "hear say" - a.k.a. "I heard that she said", or in this case, "I read that someone called Canon and that they said it takes 45MB/s cards". -- That link can be found here:
http://forums.dpreview.com/forums...angemode=1
and
http://forums.dpreview.com/forums...angemode=1

One of the responses is from an SD'er named Mummel, he/she can also agree/refute this claim since he/she own this camera and an Extreme card too.

Lastly, there is this tidbit of info here:
http://www.imaging-resource.com/P.../T3IA6.HTM

To sum it up:

Quote from Imaging Resource :
UHS-I compliant cards are supported, but the camera does not take advantage of their increased bus speeds.
I would LOVE TO BE WRONG AND WOULD RATHER KNOW THAT THE T3i WOULD DO 45MB/s WRITE FROM CAMERA TO CARD.

Please prove this! bounce
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