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Craig Bennett

Rio Rancho, US
64 posts

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"RE: CF or SD?"

Craig Bennett Registered since 28th Oct 2012
Sat 16-Feb-13 09:29 PM | edited Sat 16-Feb-13 09:38 PM by Craig Bennett

>Hello
>I am collecting information to buy a system preparing for a
>trip to India triangle in mid March, including D800E, 24-70mm,
>and 70-200 mm. Most likely taking landscape picture with the
>D800E.
>Thinking about buying sandisk 1 extreme pro 64GB and two 32
>GB SD card and several Sandisk 45MB/s for emergency backup
>(after read some posts about counterfeit card even buying from
>Amazon).
>Questions:
>1. Any buffer problem with 45mb card with d800e?
>2. What is a reliable card reader should I buy? I have my old
>working card reader but I do not know if it works with extreme
>card. I will bring my trusted light and small xp pro computer
>with me. My computer is not USB 3.0 capable and I do not care
>about rate of transfer as long as it transfers.
>
>Thanks for your help. I am a Expat living in Singapore. Every
>thing is about +40 percent more expensive than US and sometime
>you can not find them. Returning defective stuffs to Amazon
>is not an option.
>
>Thanks
>Young

No buffer problems with 45mb cards.
I use the Delkin USB 3.0 Memory Card Reader model DDREADER42 for $36.95 it reads every card made. Works with both USB2 and USB3 (You can just use the camera as well)

Typically CF cards are faster due to containing it's own memory management circuits, whereas it is better to use the SD for video because the camera manages the memory and it is more efficient for video than the CF.

I use both, sized the same and in the backup mode. It gives me piece of mind for weddings. I get 800 RAW shots on my 64GB using lossless compression.

You do want a CF that is UDMA capable, otherwise the buffer could be impacted. For SD cards, make sure to get a Class 6 or Class 10 for video performance. I have read suggestions for 30MB/Sec or faster and Class 10 for SD cards.

I use the following:
SanDisk Extreme Pro® SDXC™ UHS-I Memory Card (95MB/S, Class 10)
64GB # SDSDXPA-064G

SanDisk Extreme Pro® CompactFlash® Memory Card (100MB/S and UDMA)
64GB # SDCFXP-064G


SanDisk Extreme® SDHC™ UHS-I card (45MB/S, Class 10)
32GB # SDSDRX3-032G

SanDisk Extreme® CompactFlash® Memory Cards (60MB/S and UDMA)
32GB # SDCFX-032G

I see no performance difference between the Extreme Pro and Extreme. I am sure there would be a slight difference when the buffer fills, since the Extreme Pro should write faster, hence clear the buffer faster.

In reply to the OP, no you would not be losing out if you only purchase the SD card, except you will not have overflow, or backup selections to make. You can even go with the slower 45MB/S SD (Sandisc Extreme versus the Extreme Pro) and purchase a higher MB card for the same price and not have any issues as well.

As I state above, I use my SD/CF for backup peace of mind. I typically leave the CF card in the camera and only transfer the contents of the SD card to my computer. After those images are redundantly backed up and verified, I then format both cards in the camera. I have yet to have a problem with the SD card. The other nice thing about having two cards being used in the backup mode is if you accidentally erase the photo, you still have it on the backup card.

Regards,
Craig Bennett

A general, generic topic CF or SD? [View all] , Rohinton_Mehta Silver Member , Mon 21-Jan-13 03:53 AM
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