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Old Mar 30, 2007, 3:18 PM   #1
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I'm just wondering, for a 30d is there such a thing as buying too much speed on the cf card? The prices seem to range all over the place. In the camera's highest possible settings and shooting continuous, is there a limit to where some of these cards just won't be worth the money?

I did come across this cheap one:

http://www.walmart.com/catalog/produ...uct_id=5634668

Cheap enough to experiment w/o losing out on too much anyways.


John
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Old Mar 30, 2007, 3:54 PM   #2
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There's no such thing as "too fast", only "too slow".

Just because your current camera might not be able to take advantage of the speed of your new card doesn't mean that your next camera won't.
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Old Mar 30, 2007, 9:10 PM   #3
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I purchased this card $50.00


At the time it was a great buy. Speed is pretty reasonable in my camera.

You can see all the various offerings they have here

http://www.microcenter.com/search_re...ate_group=HD3R
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Old Mar 31, 2007, 7:03 AM   #4
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TCave:

Ahh. So the speed of the card, if faster than that speed allowed by the camera, will drop down to the camera speed? If this is what you're saying, good to know.


madecov:

Wow. I never heard of this brand. But that cheap it may be worth trying one. Thx






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Old Mar 31, 2007, 7:46 AM   #5
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airtaz wrote:
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Ahh. So the speed of the card, if faster than that speed allowed by the camera, will drop down to the camera speed? If this is what you're saying, good to know.
Yes, absolutely. The speeds (80x, 120x, 133x, etc.) are the MAXIMUM read/write speeds.

And the card that madecovbought is a store brand. MicroCenter is a computer superstore.
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Old Mar 31, 2007, 9:14 AM   #6
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You will tend to get diminishing rates of returns with faster cards in many cameras, because the camera's interface to media is the bottleneck. IOW, you may buy a card that's twice as fast and only see a 20% improvement, depending on the limitations of the camera and the cards being compared.

Rob Galbraith has some speed test of some of the popular cards in a 30D here:

http://www.robgalbraith.com/bins/mul...?cid=6007-8478

It looks like the 30D "tops out" at less than 7MB/Second using a very fast card.

But, the 30D does have a relatively larger internal buffer (fast internal memory used to buffer images while they're being written to media). So, you won't seen any degradation in the camera's performance unless you fill up this internal buffer. Then, the camera will slow down to the speed it can write to the card you're using for subsequent shots.

This is what Steve said about it:

Quote:
The 30D's continuous shooting mode also produced impressive performance. I was able to capture between 20 and 43 Large Fine images (depending on image content) at 5fps, with subsequent shots coming at 6/10 second intervals while the camera's buffer remained full. The 30D's RAW capture rate remained at 5fps, but to a depth of only 11 images; subsequent shots came at 1 second intervals. The 30D's buffer and memory performance also impressed, taking only 10 seconds to flush a full buffer to its CF memory card. Performance measurements were made with a Lexar Professional 2GB 133x CF memory card installed.



http://www.steves-digicams.com/2006_...s/30D_pg7.html
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Old Mar 31, 2007, 9:24 AM   #7
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Shop around, Flash memory prices have dropped.
Check Newegg.com They have name brand memory cards at close to comparable prices.

I have a Microcenter not far from home so I drop in and pick up stuff when needed.
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Old Mar 31, 2007, 9:52 PM   #8
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airtaz wrote:
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I'm just wondering, for a 30d is there such a thing as buying too much speed on the cf card? The prices seem to range all over the place. In the camera's highest possible settings and shooting continuous, is there a limit to where some of these cards just won't be worth the money?

I did come across this cheap one:

http://www.walmart.com/catalog/produ...uct_id=5634668

Cheap enough to experiment w/o losing out on too much anyways.


John
I wouldn't consider that "cheap", I would say it is rather expensive for what you get. The item you linked cost about $50 for a 2GB CF "120x" no name brand. If you are looking at that card, I would be more concern with the quality than the speed.

At newegg.com you can get SanDisk brand Ultra II 2GB CF for a little bit cheaper than that. I am sure that the SanDisk brand will be faster and more reliable than that offbrand unit. Also when you get an off-brand unit, you have a higher risk of having the card fail on you. If you are going to spend $50 on a 2GB CF card, I would get the SanDisk Ultra II card.

If 2GB is all you want and want to save some money, you can get the Transcend or Ridata brand for about half the price.
http://www.newegg.com/Product/Produc...82E16820208048
http://www.newegg.com/Product/Produc...82E16820183054

I had the Ridata 1GB SD 150x card for my Pentax and it seems to be just as fast as the Sandisk Ultra II when I tested it.



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