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Thread started 07 Nov 2010 (Sunday) 07:03
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7D-Memory Card 266x 100x 133x?

 
deeps10
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Nov 07, 2010 07:03 |  #1

Hi Everyone,

New member to the forums as I have just bought a Canon 7D. Please excuse any dumb questions that might seem quite obvious.

I am looking to purchase some compact flash cards for my camera. I can see different speed cards, with the higher speed meaning higher cost.

Could some one give me advice as to which speed memory card to buy? Or what is the minimum speed card to get. I will be capturing both still and video,

thanks!




  
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bohdank
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Nov 07, 2010 09:31 |  #2

A long as you don't shoot repeated high and long speed bursts that fill the cameras buffer, any of those will work fine. The difference will be in the time it will take pulling the images/videos off the cards and on to your compuer.

Someone said they were having problems with 133x, hence 100x cards would also give problems, recording video so you might want to ask for that, specifically.

I wouldn't get anything less than 133x. For the vast majority of shooters, they are perfectly adequate.


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deeps10
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Nov 07, 2010 11:11 |  #3

thanks for the reply bohdank




  
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Evan ­ Idler
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Nov 07, 2010 12:05 |  #4

If your going to buy some new cards take a look at Transcend. They are quite a bit cheaper than SANDISK, and are well respected by everyone that uses them.

Transcend 400X - 64 GB Compact Flash Memory Card TS64GCF400 $176.19 (external link)

Transcend 400X - 32 GB Compact Flash Card $79.59 (external link)

They will give you lots of room for shooting RAW, and at 4G for 10 minutes of video, they will let you take plenty of video as well.

I personnely use 5 of the 64G in my 7d, and have been using the Transcend cards in my 300D, 30D and 40D for years without any problems.

--Evan


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bohdank
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Nov 07, 2010 12:09 |  #5

I use and also recommend Transcend. A mix of older 133x/266x/300x, in my 5DII and, now also, 7D.


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Tony_A
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Nov 07, 2010 14:49 |  #6

It seems that the cards get faster every couple of months. I personally use Lexar Professional 400X with no problems. I have always wondered though if the UDMA standard implimented in for example a 7D has a limit? in other words at what point will the cards get too fast for the current camera to take advantage of this additional speed, or is this not how it works?


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themadman
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Nov 07, 2010 14:55 |  #7

I have both Transcend 400x and Sandisk 30MB/s I am not sure what actual data rate 400x translates to, but it is faster than my Sandisk 30MB/s. My minimum would be one of those.


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spectre
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Nov 07, 2010 22:17 as a reply to  @ themadman's post |  #8

I've been using Transcend 400X 16gb cards for standard shooting. I use the Delkin 625X 16gb card for times when I will do high speed shots and fill the buffer frequently.

To be honest, for the normal every day stuff I tried to create an error I was getting on my 30D with a couple of my Patriot 8gb 266X cards and they gave me the same error on my 7d (telling me it was the card all along and not the camera) I tossed those and shot with a few more of my Patriot 266Xs and have not run into a problem at all but they are very very painfully slow when you hit the buffer. Shooting single shot I think these cards will be just fine in the 7D.


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kingdavidd
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Nov 07, 2010 23:08 |  #9

i use a 16GB Sandisk 4 @ 45MB/s with my 7D

no issues with high speed shooting jpgs. i have my shutter pressed for about 3-4 seconds at a time and have not experience any lagtime..

haven't tried in raw though :O)


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themadman
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Nov 08, 2010 00:14 |  #10

With my 7D at highest resolution jpeg (which I use for certain sports applications) I noticed I can essentially do unlimited amount of time with 400x (have held down for several seconds without any delay). With my 30MB/s Sandisk I notice delay after a second or two.


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vel
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Nov 08, 2010 05:22 |  #11

themadman wrote in post #11241580 (external link)
I am not sure what actual data rate 400x translates to, but it is faster than my Sandisk 30MB/s.

CF speeds are rated as multiples if 150KB/s.
So 1X = 150KB/s, with 1024 KB per MB.

So your 400X card would transfer at a theoretical maximum of ~58.6MB/s. quite close to twice your Sandisk's speed.


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hollis_f
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Nov 08, 2010 05:57 |  #12

For most people card speed makes little difference. Here are my conclusions after some experimentation (details here (external link)).

Before you splash out on a 60 or 90 MB/s card ask yourself some questions -

* Do I often fill my camera's buffer?
* Do I ever fail to get a shot because I'm waiting for the 'Busy' light to go off?
* Do I have a high-speed card reader?

If the answer to any of those questions is 'Yes' then a high-speed card may be for you. If the answers are all 'No' then you'd probably be wasting your money.


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MT ­ Stringer
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Nov 09, 2010 00:51 |  #13

Since the OP has a 7D, I can pass on my experience. I have 4 16gb Transcend 400x cards and they work well in the 7D (and in the 1D MK3). I shot 1/2 of 8 volleyball games in one day (all in RAW format). That took up three of the cards. That night, I shot the state football championship game. I filled the 4th card and switched over to a 16gb Kingston 133x. I immediately just about came to a complete halt. I could shoot a burst of a running play, then have to wait and wait for the buffer to clear. Finally, I removed the card and switched over to a Sandisk Extreme III 8gb card to finish the game.

My 133x cards are going along for the ride just in case of emergency, but I don't plan to use them again unless I use them in the MK3. There is a big difference in 10mp sensor images produced by the MK3 and 18mp sensor size images produced by the 7D.

Bottom line, get a fast card or three and don't look back.

Edit: Hollis is right, you should get a high speed card reader for the faster cards. I bought a Lexar 800 Firewire CF card reader for my PC and a Lexar card reader for the express card slot on my laptop.


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midget
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Nov 09, 2010 16:40 |  #14

if you shoot in raw, i'd say go as fast as you can afford. in jpeg the buffer is deep enough that i wouldn't be so worried.


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r.morales
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Nov 09, 2010 21:02 |  #15

My 7D is on the way . Most of my cards are 133 or below . couple at 300 . I am planning on getting at least 2 300 at 16 gb .
I like the burst mode at parties and for birds , bugs and if windy flowers . I got the dreaded busy lite a lot on 7D - but that was camera buffer not card . I will probably go for transcend unless a good sale comes up on sandisk , delkin or lexar . Too many fakes on ebay to take a chance .


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7D-Memory Card 266x 100x 133x?
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