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General photography questions and answers: Discuss Memory cards...Can any one advise. I have just changed from SDHC cards (8GB class 6) to Compact Flash (Ultra 8GB 30 ...
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Old 22-03-2011, 08:50   #1 (permalink)
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Thumbs up Memory cards

Can any one advise. I have just changed from SDHC cards (8GB class 6) to Compact Flash (Ultra 8GB 30 mb/s) both well known brands and I have found downloading images (stills not video) to my lap top from the CF cards is soooo slow. I can make tea in the time it takes.

I have to use a card reader attached to the laptops USB port. Would a CF with 60 mb/s
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Old 22-03-2011, 09:17   #2 (permalink)
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Re: Memory cards

You can get high speed card readers, but the limiting factor might be your laptop.

Search for UDMA card readers. Something like this

Lexar Professional UDMA Dual Slot USB 2.0 Reader ( UDMA CF/ CF/SD/SDHC Cards ): Amazon.co.uk: Computers & Accessories
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Old 22-03-2011, 11:15   #3 (permalink)
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Re: Memory cards

My lap top is about 12 months old and hasn't caused me any issues. I admit I didn't research card readers but having just read some of the reviews that will be my next step. If the card was 60 mb/s would that make a difference as well, as I will be increasing my stock of CF cards.

Thank you.
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Old 22-03-2011, 11:27   #4 (permalink)
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Re: Memory cards

You usually find that modern fast cards have a faster write speed than read speed. This is to enable the cameras to empty the buffers when shooting at a high frame rate rather than to speed up image transfers to a computer. However, cards with a higher read speed ought to be faster, but I think that in practice any differences will be minimal. My desktop with dual core processors and 2GB RAM downloads images fairly quickly using a Sandisk UDMA reader, but my laptop has a very basic specification and I don't use it for imaging work.
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Old 25-03-2011, 21:06   #5 (permalink)
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Re: Memory cards

One last thought before I buy, would it help if I down loaded straight from my camera via Canon supplied software?
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Old 25-03-2011, 21:17   #6 (permalink)
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Re: Memory cards

Quote:
Originally Posted by Russell View Post
One last thought before I buy, would it help if I down loaded straight from my camera via Canon supplied software?
I don't actually know, but I would not have thought so.
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Old 26-03-2011, 11:32   #7 (permalink)
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Re: Memory cards

In no way scientific but I've found cardreaders to be easily the fastest method of transfer (USB2 - but rarely find USB1 nowadays anyway). Card speed undoubtedly has an effect on download speed (and I use old cards from about 5x to newer 300x) but the most significant decider is filesize. I can download 2 to 4 images from my 30D (8MP), G11 (10MP) or SD14 (14MP) in the time it takes to transfer 1 image from my 7D (18MP). Whether it's a buffer thing on the reader, I'm not sure, but it's the same across different cardreaders (which is another source of wildly different speeds - all readers are definitely not created equal!)
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Old 27-03-2011, 12:04   #8 (permalink)
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Re: Memory cards

I sometimes use a card reader but its still a slow process, when I download raw images its even slower! I am updating a couple of my CF cards for faster ones, I only use 4GB cards as I dont like all my images on one card. My supplier tells me there is a backlog to get some brands of cards, they may have to come from Japan and as we know there is big problems there, already Nikon and Canon have their factories closed at the moment........
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Old 27-03-2011, 14:39   #9 (permalink)
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Re: Memory cards

Guys I've gone with the Lexar Professional UDMA reader and will let you know how its goes.
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Old 08-04-2011, 11:57   #10 (permalink)
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Re: Memory cards

Update. The Lexar Professional UDMA card reader(Look around for best price) works with my CF cards brilliantly. I downloaded a full 8gig card with Jpeg and Raw in absolutely no time at all. Really impressed and would not hesitate to recommend.

Thanks to Dabhand16 for the heads up.

Regards

Russell

Last edited by Russell; 08-04-2011 at 11:58. Reason: add words
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Old 08-04-2011, 14:16   #11 (permalink)
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Re: Memory cards

Glad that it turned out to be Ok Russell
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