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DPChallenge Forums >> Hardware and Software >> Memory Card Write Speed Question
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Showing posts 1 - 11 of 11, (reverse)
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04/26/2007 06:22:37 AM · #1
What or where exactly is the benefit of higher write speeds? I have a CF card at write speed 80x and two at write speed 133x and honestly I've never seen a difference. I shoot RAW most of the time also.

I'm in the market for another one and just thought I'd ask.
04/26/2007 06:25:32 AM · #2
I shot a couple sports events and with my slower card I was all the time sitting around waiting for my camera to empty the buffer onto the card. I missed some great shots doing that. With my faster card I was able to shoot, shoot, and shoot without having to wait.

Message edited by author 2007-04-26 06:27:59.
04/26/2007 06:27:17 AM · #3
do you shoot in burst mode??

if not, probably not that much difference.
if yes, it will effect the number of shots taken in the burst before the camera stops taking pictures.
04/26/2007 06:31:41 AM · #4
Watch this movie. Can you hear towards the end that the camera doesn't take pictures as fast as it did in the beginning? That is because the buffer is full and the camera can't write to the card as fast as it can take pictures.
04/26/2007 08:20:38 AM · #5
With a higher write speed, should come a higher read speed. Transferring to the computer should be a little quicker.
04/26/2007 09:25:52 AM · #6
Go here and select your camera from the drop-down. You'll see that there is very little difference in in-camera write performance among faster cards.
Most cameras cannot write as fast as the fastest cards are capable of handling. The only benefit of the fastest cards is therefore the card-to-computer transfer rate, and then only if your reader and computer can support those rates. The very fastest cards today can transfer as fast as typical hard disk subsystems can handle.
04/27/2007 11:40:56 AM · #7
Well I notice a major difference between my SanDisk Ultra II 4.0GB and my Lexar Professional 2GB 133x Speed card in camera and when transferring to the computer. The Lexar is much faster which is the exact opposite of what I had expected. I use a SanDisk Extreme Card Reader and a 5400 RPM Hard Drive.
04/27/2007 12:11:02 PM · #8
Originally posted by skylercall:

Well I notice a major difference between my SanDisk Ultra II 4.0GB and my Lexar Professional 2GB 133x Speed card in camera and when transferring to the computer.


SanDisk is surrounded by almost mythical hype. They certainly make good stuff, but anything less than a SanDisk Extreme will generally be slower than less expensive 100X+ cards from other vendors. As others have mentioned, though, you'll typically only notice the difference if you shoot a lot in burst mode or transfer files with a fast card reader.
04/27/2007 12:31:49 PM · #9
While read-/write-speed is critical for something like 20MB images, reliability remains my main concern. I've been using SanDisk and Lexar cards long enough now to discriminate. I've experienced my fair share of corruption with Lexar (Pro) cards, while the SanDisk (Extreme III) failed me only once, in years of use.

I have no stats outside of own experience though.
04/27/2007 12:33:02 PM · #10
The D70s doesn't have much of a burst mode to speak of, but I sure like having a fast card when it comes time to dump 4GB of photos on my hard drive.
04/27/2007 12:41:07 PM · #11
Originally posted by zeuszen:

I've been using SanDisk and Lexar cards long enough now to discriminate.


I've only ever used Lexar and Transcend, and the only problems I've seen involved a compatibility issue with a Lexar card (since resolved).
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