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  #1  
Old 26th March 2011
bazza2764
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CF Card

Hi All,
I am thinking of buying a new memory card (4GB) i would like one around the x300 speed, Asda are selling one that writes at 30mbs a sec and reads at the same speed, but i don't know how to convert that to speed? as in x300? or x133? anyone know of a table of a way of calculating it?.
I have seen the one on 7day shop for £13.49 http://e-group.uk.net/forum/showthread.php?t=13292 any help ?
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  #2  
Old 27th March 2011
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Re: CF Card

Dunno, but why do you want such a high speed? I use Sandisk Extreme III CF cards and their Ultra 15mbs SD cards and have never had a problem with write speed.
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  #3  
Old 27th March 2011
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Re: CF Card

Why don't you try these?

http://www.7dayshop.com/catalog/prod...ucts_id=110827

Double the space for a pound more.

Using two of the 4GB ones
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Old 27th March 2011
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Re: CF Card

Quote:
Originally Posted by bazza2764 View Post
Hi All,
I am thinking of buying a new memory card (4GB) i would like one around the x300 speed, Asda are selling one that writes at 30mbs a sec and reads at the same speed, but i don't know how to convert that to speed? as in x300? or x133? anyone know of a table of a way of calculating it?.
I have seen the one on 7day shop for £13.49 http://e-group.uk.net/forum/showthread.php?t=13292 any help ?
The number quoted (say 300) - as opposed to the actual speed (say 30MB/s) is actually simply a multiplier. It goes back to the old days of CDRoms where they initially could only transfer data at 150kB/s. So a card which states 300 actually runs at 300 X 150k(or 0.15M) = 45MB/s.

So :

133 = 20MB/s roughly speaking
200 = 30MB/s
233 = 35MB/s
300 = 45MB/s
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Old 27th March 2011
bazza2764
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Re: CF Card

Quote:
Originally Posted by Melaka View Post
Dunno, but why do you want such a high speed? I use Sandisk Extreme III CF cards and their Ultra 15mbs SD cards and have never had a problem with write speed.
maybe im getting mixed up, my e420 maybe isn't capable of writing to the card as fast as i want, i do 6 dance shows a year, and when in burst mode it slows down, i thought it might be the write speed of the card but its probably the camera... looking at the card i currently have its a Kingston Compact Flash Elite Pro 133X . thanks for your help
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Old 27th March 2011
bazza2764
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Re: CF Card

Quote:
Originally Posted by jamie allan View Post
The number quoted (say 300) - as opposed to the actual speed (say 30MB/s) is actually simply a multiplier. It goes back to the old days of CDRoms where they initially could only transfer data at 150kB/s. So a card which states 300 actually runs at 300 X 150k(or 0.15M) = 45MB/s.

So :

133 = 20MB/s roughly speaking
200 = 30MB/s
233 = 35MB/s
300 = 45MB/s
Thanks that helps, as i say i think it maybe the write speed buffer of the camera being an E420, maybe i should have looked at that first
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Old 2nd February 2012
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Re: CF Card

Hi Barry,
Seems you asked this question also at Olympus user, right? So no need to repeat my answer here, I think.
Like i told at Olympus User, I use an ADATA 32GB CF533X card in my E-420 and never had any problem what so ever with it. So you can can use a fast card in your E-420.
Greetz,

P.s. But why would you buy a expencive Sandisk CF card if you can go for a cheaper, faster and better ADATA CF card instead which comes with a lifetime warranty? I got also a personal insurance that it will work properly and fast from the European CEO of ADATA himself.
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Old 3rd February 2012
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Re: CF Card

300x CF cards are only beneficial if your camera supports UDMA and only the E-3, E-30 and E-5 do. Although you will get the benefit of faster downloading from the card if you use a UDMA card reader, but this needs to be connected to a suitably fast interface port: FireWire II or USB 3.

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  #9  
Old 4th February 2012
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Re: CF Card

Hi Ian,

Believe me, don't know why but 300x and 533x cards do work properly at the e-420. Working myself with the ADATA 32GB 533X now for more then a year and it is really fast and never had any problems with it. Although the e-420 doesn't support UDMA, you can notice the speed difference when taking photos compared with other makes that are more expensive while the photos are written onto the card.
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Oly OMD E-M 10 Mark II
Oly E-420
Oly Zuiko ED 70-300mm 1:4-5.6
Oly Zuiko ED 40-150mm 1:4-5.6
Oly Zuiko ED 14-42mm 1:3.5-5.6
Samyang/Delamax 650-1300mm 1:8-16 Manual Telephoto Lens
Chinon 500mm mirror 1:8-16 Manual Telephoto Lens

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  #10  
Old 4th February 2012
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Re: CF Card

Quote:
Originally Posted by buddha01 View Post
Hi Ian,

Believe me, don't know why but 300x and 533x cards do work properly at the e-420. Working myself with the ADATA 32GB 533X now for more then a year and it is really fast and never had any problems with it. Although the e-420 doesn't support UDMA, you can notice the speed difference when taking photos compared with other makes that are more expensive while the photos are written onto the card.
As long as you have the latest firmware (some models with older firmware did not work properly with UDMA cards) there should be no problem using UDMA cards, but you won't see any benefit over a standard 133x card in any E-System DSLR apart from the E-3, E-30 and E-5. The only benefit will be in getting your pictures off the card faster if you have a UDMA-compatible card reader connected to a fast port (Firewire II or USB3).

Ian
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