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Sandisk Class 4 SDXC card for D7000?

abuhannibal

teaneck, US
7 posts

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abuhannibal Registered since 20th Apr 2011
Wed 20-Apr-11 06:56 PM | edited Wed 20-Apr-11 07:00 PM by abuhannibal

I have been following the discussion here re larger cards vs. smaller and am still pondering that issue, but for the moment, wanted to ask if folks have experience with the Sandisk Class 4 SDXC and whether it is fast enough for normal still shooting with a D7000- i have no interest in HD video, so basically if I can shoot 3-exposures for HDR purposes without overflowing the buffer that's really all I need at this point.

Thanks in advance! I am expecting my D7000, 18-200 and Tokina 11-16 to arrive tomorrow and am really looking forward to getting to know it!

-- Bob

PS: I should add that I plan to shoot RAW, probably 14-bit uncompressed. But I am doing landscape work so waiting a few seconds for the data to get written is not a problem at all, as long as those 3 HDR shots will not overflow the buffer...

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Robman3

West of Santa Monica, US
1842 posts

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#1. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 0

Robman3 Registered since 12th Apr 2010
Wed 20-Apr-11 05:06 PM | edited Wed 20-Apr-11 05:06 PM by Robman3

If it's doing the job then stick with it.

As you allude to HDR, that has a minimum architecture of class 6, for constant available through put.

Rob

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abuhannibal

teaneck, US
7 posts

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#2. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 1

abuhannibal Registered since 20th Apr 2011
Wed 20-Apr-11 05:08 PM

Thanks - I don't have the camera yet so have to rely on the experience of others...

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Robman3

West of Santa Monica, US
1842 posts

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#3. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 2

Robman3 Registered since 12th Apr 2010
Wed 20-Apr-11 05:51 PM | edited Wed 20-Apr-11 06:03 PM by Robman3

I have some class fours, once I find them, I'll take a burst and let you know.

I put in a class four card, took several shots, three on, over, under and it did OK. I also have it saving both NEF and JPEG, used a single slot.

Not rocket fast but did the job.

HTH's

Rob

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four eighty sparky

US
1653 posts

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#4. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 1

four eighty sparky Registered since 08th Apr 2011
Wed 20-Apr-11 06:09 PM


>
>As you allude to HDR, that has a minimum architecture of class
>6, for constant available through put.


Huh? What does the card have to do with HDR?

abuhannibal

teaneck, US
7 posts

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#5. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 4

abuhannibal Registered since 20th Apr 2011
Thu 21-Apr-11 12:54 AM

Thanks to everyone - I assume that what Robman3 meant was that the card needs to be able to write at a certain minimum speed to keep the buffer from filling even when doing just 3 bracketed exposures. (IOW it's not intrinsically related to HDR but rather to burst writes.)

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four eighty sparky

US
1653 posts

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#6. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 5

four eighty sparky Registered since 08th Apr 2011
Thu 21-Apr-11 01:06 AM

>Thanks to everyone - I assume that what Robman3 meant was
>that the card needs to be able to write at a certain minimum
>speed to keep the buffer from filling even when doing just 3
>bracketed exposures. (IOW it's not intrinsically related to
>HDR but rather to burst writes.)


If you shoot Raw + Jpeg Large/fine, you'll probably fill the 10-shot buffer anyway if you merrily click off shot after shot. But I don't see the need to take >10 shots for a single HDR, though.

Robman3

West of Santa Monica, US
1842 posts

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#7. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 4

Robman3 Registered since 12th Apr 2010
Thu 21-Apr-11 04:24 AM

The minimum write speed for Video codec in this camera (h.264/MPEG4) requires at least a class 6 card, page 319 0f the manual:

"...class 6 or faster write speeds are recommended for movie recording. Recording may end unexpectedly when cards with slower write speeds are used."

HTH's,

Rob

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abuhannibal

teaneck, US
7 posts

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#8. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 7

abuhannibal Registered since 20th Apr 2011
Thu 21-Apr-11 10:12 AM

Rob,

Thanks, yeah, I saw that. I basically have no interest in video but I am leaning towards springing for faster cards anyway at this point...

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abuhannibal

teaneck, US
7 posts

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#9. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 8

abuhannibal Registered since 20th Apr 2011
Thu 21-Apr-11 02:15 PM

Decided to go with some 32gb Sandisk Class 10's... thanks to everyone who replied!

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Mr Moose

US
33 posts

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#10. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 9

Mr Moose Registered since 05th Jan 2011
Thu 21-Apr-11 06:25 PM | edited Thu 21-Apr-11 06:27 PM by Mr Moose

The D7000 is one of the first DSLR's that can take advantage of the latest SDHC UHS-speed class1 cards. The Sandisk Extreme pro line are the fastest out there at the moment. I just picked up a 32 Gb card for $135.00

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ReadnFool

US
22 posts

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#11. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 0

ReadnFool Registered since 16th Jan 2011
Sun 24-Apr-11 12:34 PM

Looks like the poster made up his mind, but I didn't see the basic question answered simply.

The D7000 has a built in buffer. That buffer can hold different numbers of frames depending on camera settings. This buffer is even faster than the fastest XD card. Until that buffer fills up you are taking pictures at full speed.

Only after that buffer fills up and the camera has to wait for the data to move to the memory card does card speed become critical.

For HDR and Bracketing even a slow card should be fine since the buffer will hold plenty for those purposes (10 frames at 14 bit lossless raw) and empty in a few seconds.

If you are shooting video you need at least class 6 to keep from losing frames. I don't know if going higher would provide any benefit for video.

Where card speed becomes most critical is continous high speed shooting where after the buffer fills the card limits the FPS of the camera. I know with the Sandisk Extreme 30 mb/s cards in medium fine JPEG my camera doesn't choke noticably. And at even higher quality settings I get several seconds before choking.

There is a whole thread made sticky in the D7000 group that is updated with all sorts of information about camera settings and shooting speeds.

Steve
ReadnFool

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abuhannibal

teaneck, US
7 posts

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#12. "RE: Sandisk Class 4 SDXC card for D7000?" | In response to Reply # 11

abuhannibal Registered since 20th Apr 2011
Sun 24-Apr-11 12:41 PM

Readnfool,

Thanks - yes, I did eventually get that figured out, but you're right, that was kinda the whole crux of my question. Anyway I ended up figuring that I might as well go with faster cards if only b/c I might at some point change my mind about wanting to get serious about video...still not sure if there was any real point in springing for Sandisk Class 10's over Lexar, which are significantly cheaper, but maybe I'll also get a Lexar or two and compare.

Anyway, thanks for your help!

-- Bob

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G