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Subject: "SDHC versus SDXC in D7100?" Previous topic | Next topic
Mycenius Silver Member Nikonian since 25th Feb 2006Wed 19-Jun-13 07:06 AM
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"SDHC versus SDXC in D7100?"


Auckland, NZ
          

Hi All,

Are there any tech specs on the data rate for the D7100 and whether a SDXC card offers any benefit over a good SDHC card?

I currently have a Class 10 SDHC (SanDisk with a 45Mb/s read speed) and wondering if this is more than fast enough for the 7100 to clear its buffer at it's highest possible rate - or is there a benefit to using a SDXC (e.g. Lexar Pro UHS-1 SD Card 400x, nominal read speed is 60Mb/s - or a 600x / 90Mb/s card)?

I'm speculating the 7100 isn't fast enough to notice any difference between individual Class 10 cards and a good SDHC card is more than adequate (unless of course you need to exceed the 32GB or whatever storage cap).

Appreciate any tech specs, links, or insights...?

TIA,

John
Kiwi Nikonian
D90 | 11-16mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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Subject Author Message Date ID
Reply message RE: SDHC versus SDXC in D7100?
elec164 Silver Member
19th Jun 2013
1
Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
19th Jun 2013
2
     Reply message RE: SDHC versus SDXC in D7100?
elec164 Silver Member
19th Jun 2013
          Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
19th Jun 2013
4
Reply message RE: SDHC versus SDXC in D7100?
RRowlett Silver Member
20th Jun 2013
5
Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
20th Jun 2013
6
     Reply message RE: SDHC versus SDXC in D7100?
Daveecopping Silver Member
20th Jun 2013
7
     Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
20th Jun 2013
8
     Reply message RE: SDHC versus SDXC in D7100?
MarkM10431 Silver Member
20th Jun 2013
10
          Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
20th Jun 2013
11
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anymouse73 Silver Member
20th Jun 2013
9
Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
20th Jun 2013
12
     Reply message RE: SDHC versus SDXC in D7100?
pcwgr1 Silver Member
24th Jun 2013
13
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pcwgr1 Silver Member
24th Jun 2013
14
               Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
24th Jun 2013
15
Reply message Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I
Mycenius Silver Member
24th Jun 2013
16
Reply message RE: Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I
MarkM10431 Silver Member
24th Jun 2013
17
     Reply message RE: Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I
Mycenius Silver Member
24th Jun 2013
19
Reply message RE: SDHC versus SDXC in D7100?
agitater Gold Member
24th Jun 2013
18
Reply message RE: SDHC versus SDXC in D7100?
Mycenius Silver Member
24th Jun 2013
20
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agitater Gold Member
24th Jun 2013
21
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agitater Gold Member
24th Jun 2013
22
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jhonave
12th Jul 2013
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12th Jul 2013
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elec164 Silver Member Nikonian since 15th Jan 2009Wed 19-Jun-13 02:40 PM
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#1. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 0
Wed 19-Jun-13 02:41 PM by elec164

US
          

I think you're mixing up your terms. The SD designations of HC and XC have to do with file size and card capacity.

The speed ratings would be the old x-rating and newer Class rating and UHS speed class.

Nether the less, perhaps you might find this posting at Dpreview of some experimenting someone had done.

If my quick scan of the information is accurate, the D7100 will benefit from the faster Class cards.

Pete

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Mycenius Silver Member Nikonian since 25th Feb 2006Wed 19-Jun-13 07:46 PM
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#2. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 1


Auckland, NZ
          

>I think you're mixing up your terms. The SD designations of
>HC and XC have to do with file size and card capacity.
>
>The speed ratings would be the old x-rating and newer Class
>rating and UHS speed class.
>
>Nether the less, perhaps you might find this
>posting at
>Dpreview of some experimenting someone had done.
>
>If my quick scan of the information is accurate, the D7100
>will benefit from the faster Class cards.
>
>Pete


Hi Pete,

Yes - perhaps worded poorly - however as I understand there are now higher speed ratings for the SDXC Cards that weren't available on even the highest rated SDHC cards (e.g. SanDisk claim something like a 120Mb/s read speed against about a 75 or 90Mb/s max on nay SDHC card - so was assuming that although all are "Class 10" this may indicate a higher practical write speed within the Class 10 category - obviously not 120Mb/s though...)?

I'll have a look at the DPReview link - Cheers.

John
Kiwi Nikonian
D90 | 11-16mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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elec164 Silver Member Nikonian since 15th Jan 2009Wed 19-Jun-13 08:57 PM
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"RE: SDHC versus SDXC in D7100?"


US
          

Yeah, one note.

The Class and UHS speed ratings define a minimum rate standard. Also there is no standard on how the speed of a card is to be stated. So a manufacture could be stating a theoretical best case speed or sustained write speeds.

For example the Sandisk Extreme SDHC UHS-1 compliant card has a read/write speed of 45MB/s and the Extreme Pro SDHC UHS-1 card is 95 MB/s read and 90 MB/s write. Yet a Lexar SDHC UHS-1 card has a read speed of 60 MB-s and write speed of 10 MB-s. All of them rated Class 10 UHS-1.

So there can be a large disparity with different manufactures reporting.

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Mycenius Silver Member Nikonian since 25th Feb 2006Wed 19-Jun-13 10:11 PM
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#4. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 0


Auckland, NZ
          

>Yeah, one note.
>
>The Class and UHS speed ratings define a minimum rate
>standard. Also there is no standard on how the speed of a card
>is to be stated. So a manufacture could be stating a
>theoretical best case speed or sustained write speeds.
>
>For example the Sandisk Extreme SDHC UHS-1 compliant card has
>a read/write speed of 45MB/s and the Extreme Pro SDHC UHS-1
>card is 95 MB/s read and 90 MB/s write. Yet a Lexar SDHC UHS-1
>card has a read speed of 60 MB-s and write speed of 10 MB-s.
>All of them rated Class 10 UHS-1.

Yep - exactly - so I'm trying to get my head around:

(a) What is the maximum speed the D7100 can make use of (hopefully that DPReview article will help there)?

(b) What SD Cards achieve that speed (i.e. what's the lowest spec card that is the fastest the D7100 can utilise)?




John
Kiwi Nikonian
D90 | 11-16mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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RRowlett Silver Member Charter MemberThu 20-Jun-13 12:14 AM
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#5. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 0


Hamilton, US
          

With the fastest (90 Mb/s) cards you will be able to shoot in raw mode at 3 fps or so even after the in-camera buffer fills after 6-7 shots. These cards can almost keep up with the camera. With a 45 Mb/s card you will slow to around 1 fps after the buffer fills. Any slower and you are really reduced to single, spaced-out shots after the buffer fills. In JPEG mode, you can go much longer until the buffer fills, so you won't notice the difference so much except for the backlog write time to clear out the buffer.

The 45 Mb/s cards are the "sweet spot" for price and speed, giving you reasonable write speeds for about $1/Gb. For fast shooting, you pay a premium.

Cheers.

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Thu 20-Jun-13 03:54 AM
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#6. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 5


Auckland, NZ
          

Thanks Roger,

That's the type of analysis I'm trying to assemble - I've picked up my new 7100 today, and will use my existing card (which is an 8GB 45Mb/s one) as the back-up/secondary card - and get a new faster (larger) card as my new primary one.

So I'll look into the 90Mb/s+ rated ones...

Cheers,

John
Kiwi Nikonian
D90 | 11-16mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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Daveecopping Silver Member Nikonian since 21st Jan 2011Thu 20-Jun-13 08:10 AM
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#7. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 6


Polegate, GB
          

If the D7100 had a decent sized buffer, this thread would probably have been unnecessary. In the Shooting Menu, there is an item "Role played by card in Slot 2" and there are three options. If there was a fourth option to use the card in slot 2 as additional buffer space, how happy would we all be?

Best wishes,

Dave

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Thu 20-Jun-13 09:35 AM
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#8. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 7


Auckland, NZ
          

>If there was a fourth option to use the
>card in slot 2 as additional buffer space, how happy would we
>all be?


Hey Dave - good thought but probably wouldn't solve anything - the data still has to get from the initial built in buffer to the card regardless - so unlikely to help... Unfortunately...



John
Kiwi Nikonian
D7100 | 11-16mm f/2.8 | 17-55mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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MarkM10431 Silver Member Nikonian since 15th Apr 2013Thu 20-Jun-13 05:37 PM
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#10. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 6


jacksonville, US
          

>Thanks Roger,
>
>That's the type of analysis I'm trying to assemble - I've
>picked up my new 7100 today, and will use my existing card
>(which is an 8GB 45Mb/s one) as the back-up/secondary card -
>and get a new faster (larger) card as my new primary one.
>
>So I'll look into the 90Mb/s+ rated ones...
>
>Cheers,
>
>John
>Kiwi
>Nikonian

>D90 | 11-16mm
>f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8
>Micro



I thought the 8g card from my D80 would be ok.. nope. I bought twin 16 cards and I think I have around 460 frames between the two. before the Bristol race i plan on at lease one 64G card, and as fast as i can afford.

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Mycenius Silver Member Nikonian since 25th Feb 2006Thu 20-Jun-13 08:07 PM
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#11. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 10


Auckland, NZ
          

>I thought the 8g card from my D80 would be ok.. nope. I bought
>twin 16 cards and I think I have around 460 frames between the
>two. before the Bristol race i plan on at lease one 64G card,
>and as fast as i can afford.

Hey Mark - yep that's the boat I'm in - I have an 8GB 45Mb/s SanDisk 'Extreme' (but not an ' Extreme Pro') Card - on RAW + JPEG (Fine) it'll only hold about 104 shots on the 8GB, and the 45Mb/s will obviously be too slow for any decent continuous shooting... I'm gonna keep it for now in my second slot as my overflow card, and get a good 90Mb/s 32GB or 64GB SanDisk EP or Lexar card (which itself can later become my slot 2 card if I need to further upgrade if needed).

Cheers,

John
Kiwi Nikonian
D7100 | 11-16mm f/2.8 | 17-55mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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anymouse73 Silver Member Nikonian since 16th Jan 2013Thu 20-Jun-13 04:59 PM
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#9. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 0


Philadelphia, US
          

Greetings,

The important number for emptying the camera buffer is the WRITE speed of the SD card.

I picked up the Extreme Pro SD (90 MB/s) and it makes a huge difference in the continuous shot mode.
B&H sells them for approx $2 a Gig. Kind of expensive but I think worth it.

Bottom line: the faster the write speed, the longer before the buffer fills up. Balance that with the price so it fits your needs.

Hope this helps.

Bob

Visit my Nikonians gallery.

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Thu 20-Jun-13 08:21 PM
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#12. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 9
Thu 20-Jun-13 08:23 PM by Mycenius

Auckland, NZ
          

Hey Bob,

>The important number for emptying the camera buffer is the
>WRITE speed of the SD card.

Yep exactly - BUT the issue is of course that the card manufacturers use different standards to determine those write speeds, so they aren't consistent from brand to brand... AND when you see 90Mb/s written on a card (e.g. SanDisk) it's the READ speed not the write AFAIK - the write is something less than that (e.g. if it says 90Mb/s the write speed might be 86Mb/s or might be actually only 70Mb/s - and that speed might be the maximum theoretical, or the overall average in their tests, or another value).

I believe SanDisk tend to rate their cards by theoretical maximum speeds, while Lexar are one of the companies that do it by sustained average rate over prolonged tests or such - hence why I think Lexars' can often show lower declared speeds than SanDisk for what looks like the same spec card...

...obviously the 90Mb/s card is still going to be, perhaps, twice as fast as a 45Mb/s one - but exactly what speed it is isn't truly known, and then of course you've got the effect of the hardware it's connected to (e.g. how fast & efficient is the camera, card reader, laptop, or whatever, it's stuck into)... A 90Mb/s card put into an older or slower device might not be able to transfer data any faster than a 45Mb/s card anyway, so the added cost of the faster card is wasted...

...hence my initial question about trying to determine just how fast (theoretically) the D7100 can transfer data from it's buffer to a card (i.e. is it faster than 45Mb/s to warrant a 90Mb/s card, if so is it capable of faster than 90Mb/s, etc)...



>I picked up the Extreme Pro SD (90 MB/s) and it makes a huge
>difference in the continuous shot mode.
>B&H sells them for approx $2 a Gig. Kind of expensive but
>I think worth it.

Yep - that's exactly what I'm looking at or the Lexar equivalent (but I've always been a SanDisk man myself).

Cheers, appreciate the input,

John
Kiwi Nikonian
D7100 | 11-16mm f/2.8 | 17-55mm f/2.8 | 18-200mm f/3.5-5.6 | 50mm f/1.8 | 105mm f/2.8 Micro

  

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pcwgr1 Silver Member Nikonian since 11th Nov 2011Mon 24-Jun-13 05:31 AM
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#13. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 12


GR
          

On my Macbook Air card reader

SANDISK EXTREME 16GB 38mb/s write speed
SANDISK EXTREME PRO 16gb 65mb/s write speed
LEXAR PRO 16GB 600X 36mb/s write speed

Visit my Nikonians gallery.

  

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pcwgr1 Silver Member Nikonian since 11th Nov 2011Mon 24-Jun-13 05:35 AM
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#14. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 13


GR
          

Just as a side note. On my new KINGSTON USB 3.0 CARD READER ( excellent init about $9.00 Amazon ) the SANDISK EXTREME PRO reached 86mb/s write! The others were about the same.

Visit my Nikonians gallery.

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Mon 24-Jun-13 05:45 AM
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#15. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 14


Auckland, NZ
          

Thanks Stavros - great info!

John
Kiwi Nikonian
D7100 | Tokina 11-16mm f/2.8 | Nikkor 17-55mm f/2.8 | Nikkor 18-200mm f/3.5-5.6 | Nikkor 105mm f/2.8 Micro | Nikkor 50mm f/1.8

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Mon 24-Jun-13 05:56 AM
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#16. "Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I"
In response to Reply # 0
Mon 24-Jun-13 06:02 AM by Mycenius

Auckland, NZ
          

Thanks for all the feedback - for now I've gone with a 32GB SanDisk Extreme Pro 95MB/s SDHC UHS-I Card (basically the largest/fastest SDHC card I could find - at a sensible price). This should sufficed for now with my older 8GB SanDisk Extreme 30MB/s SD Card in slot 2 as my emergency overflow - and if I need more capacity I'll look at adding an SDXC card later...



Stavros's comments above suggest this should have the fastest write speed or thereabouts out there at present (I hope - Manufacturer spec is up to 90MB/s (600x) write and 95MB/s (633x) read rate, although based on their own testing, however Stavros' seem's to have verified close to this with his Kingston USB 3.0 Card Reader above)...

Appreciate all the comments,

John
Kiwi Nikonian
D7100 | Tokina 11-16mm f/2.8 | Nikkor 17-55mm f/2.8 | Nikkor 18-200mm f/3.5-5.6 | Nikkor 105mm f/2.8 Micro | Nikkor 50mm f/1.8

Attachment #1, (jpg file)

  

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MarkM10431 Silver Member Nikonian since 15th Apr 2013Mon 24-Jun-13 02:36 PM
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#17. "RE: Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I"
In response to Reply # 16


jacksonville, US
          

from what i'm seeing across the web, though, it's not the card as much as the camera. I've seen a few references to the max write for the camera @ 55mbps

Visit my Nikonians gallery.

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Mon 24-Jun-13 07:41 PM
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#19. "RE: Purchased SanDisk Extreme Pro 95MB/s SDHC UHS-I"
In response to Reply # 17
Mon 24-Jun-13 07:45 PM by Mycenius

Auckland, NZ
          

>from what i'm seeing across the web, though, it's not the
>card as much as the camera. I've seen a few references to the
>max write for the camera @ 55mbps

Thanks Mark - yes that was the info I was originally seeking with this thread, what the max speed possible out of the camera is, and then which cards have write speeds that match or exceed it - but it seems there's no true consensus on this or definite specification from Nikon. I think the reality is the card I have purchased will be needed regardless for anything around that speed anyway, as the next lower cards (with 60MB/s & 45MB/s read speeds) will have write speeds below 55MB/s (i.e. the 400x and some 600x cards).




John
Kiwi Nikonian
D7100 | Tokina 11-16mm f/2.8 | Nikkor 17-55mm f/2.8 | Nikkor 18-200mm f/3.5-5.6 | Nikkor 105mm f/2.8 Micro | Nikkor 50mm f/1.8

  

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agitater Gold Member Nikonian since 18th Jan 2007Mon 24-Jun-13 04:25 PM
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#18. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 0


Toronto, CA
          

>I'm speculating the 7100 isn't fast enough to notice any
>difference between individual Class 10 cards and a good SDHC
>card is more than adequate (unless of course you need to
>exceed the 32GB or whatever storage cap).
>
>Appreciate any tech specs, links, or insights...?

The definitive SD and CF card in-camera speed tests can be found here. The D7100 has not specifically been tested yet, but the D800/800e and D4 write speed tests are in the same ballpark.

Camera data management performance - writing a single shot to a card, emptying the buffer after a burst of shots, writing to one card while backup to the card in slot 2, etc., etc. - is a function of the speed at which the camera can write to a given SD card.

Rated speeds published by SanDisk, Lexar, Integral, and all the rest of the brands, are currently based on USB 3.0 data reads & writes between a computer hard drive and an external card reader. Nothing to do with actual card performance in the camera. So all of the published card speeds are unachievable in the camera. That's why the Rob Galbraith in-camera card tests are so important.

My Nikonians Gallery

Howard Carson, Managing Editor
Kickstartnews Inc. - http://www.kickstartnews.com

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Mon 24-Jun-13 08:00 PM
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#20. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 18
Mon 24-Jun-13 08:05 PM by Mycenius

Auckland, NZ
          

>>I'm speculating the 7100 isn't fast enough to notice any
>>difference between individual Class 10 cards and a good
>SDHC
>>card is more than adequate (unless of course you need to
>>exceed the 32GB or whatever storage cap).
>>
>>Appreciate any tech specs, links, or insights...?
>
>The definitive SD and CF card in-camera speed tests can be
>found here. The D7100 has not specifically been tested yet, but the
>D800/800e and D4 write speed tests are in the same ballpark.

Wow - there's some pretty unusual results in some of those tests Howard... Thanks for the link. Quite noticeable differences between different capacity cards of the same type/spec... e.g. Suggests for the D800 a "SanDisk Extreme Pro 95MB/s 8GB" is the best possible SDHC card, offering a real speed of 42MB/s!

>Rated speeds published by SanDisk, Lexar, Integral, and all
>the rest of the brands, are currently based on USB 3.0 data
>reads & writes between a computer hard drive and an
>external card reader. Nothing to do with actual card
>performance in the camera. So all of the published card speeds
>are unachievable in the camera. That's why the Rob Galbraith
>in-camera card tests are so important.

Indeed.

Thanks for the input,

John
Kiwi Nikonian
D7100 | Tokina 11-16mm f/2.8 | Nikkor 17-55mm f/2.8 | Nikkor 18-200mm f/3.5-5.6 | Nikkor 105mm f/2.8 Micro | Nikkor 50mm f/1.8

  

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agitater Gold Member Nikonian since 18th Jan 2007Mon 24-Jun-13 08:11 PM
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#21. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 20


Toronto, CA
          

You're welcome. I check the Galbraith site every few months to see which cameras and cards have been added.

My Nikonians Gallery

Howard Carson, Managing Editor
Kickstartnews Inc. - http://www.kickstartnews.com

  

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agitater Gold Member Nikonian since 18th Jan 2007Mon 24-Jun-13 09:20 PM
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#22. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 20
Mon 24-Jun-13 09:24 PM by agitater

Toronto, CA
          

>Wow - there's some pretty unusual results in some of those
>tests Howard... Thanks for the link. Quite noticeable
>differences between different capacity cards of the same
>type/spec... e.g. Suggests for the D800 a "SanDisk
>Extreme Pro 95MB/s 8GB
" is the best possible SDHC
>card, offering a real speed of 42MB/s!

Right you are. Keeping in mind that the camera can only operate as fast as the slowest card, it's usually best to ensure that both SD cards are the same speed, or that the slot 2 card (writing a separate NEF or writing a backup or writing overflow from slot 1) is the faster one.

I personally use SanDisk Extreme Pro most of the time (the latest, fastest ones that is) and haven't had a problem.

I've also had very good results from Integral SD and CF cards for the past two years. Like SanDisk and Lexar, the Integral UltimaPro X cards have very good controllers and lots of multi-write, multi-level cell (MLC) NAND flash memory. SanDisk is basically getting SLC speeds and durability out of the newer type of MLC NAND flash. I think Integral may be using SLC NAND in its top-of-the-line cards, but there's no definitive confirmation of that at this time. It's all about the controllers anyway - the little circuit chip that controls I/O, deletion and cell erasure, and so on. SanDisk, Lexar, Integral and Transcend all seem to have the best controllers, and that makes their card reliability very high.

Kingston and other discount brands (made by the lowest bidder, somewhere), are terrible and rarely come close to meeting their specified speeds even under perfect lab conditions.

All of the old NAND flash memory on the market was usually more than fast enough for all of the 12.5 megapixel (or smaller) cameras. But the flash memory makers had to step up their game in partnership with Nikon, Canon and Sony as those 16+ megapixel sensors started hitting the market in large volumes. The D800/800e can still choke the life out of most cards, given the right circumstances. I doubt the market will cough up SD and CF cards fast enough to make the D800/800e really slick operators until late in 2014. The D7100, at 24 megapixels (and all the Canon and Sony competitors with similar size sensors) are only slightly easier on the fastest SD and CF cards. So I think we're dealing with a bit of a technology lag.

The Sony and Lexar XQD cards are speed demons for the 16 megapixel D4. The cards test in-camera at up to 90MB/sec which is exactly the sort of speed that would make the much higher megapixel counts of the D7100 and D800/800e a breeze to handle. But Nikon put the rarer, very fast XQD card format as a slot option in the D4 rather than the higher mp bodies. Go figure.

In 1991 or '92, I paid $820 for 16MB of SIMM RAM. I still resent it, but I needed that RAM. It was glacially slow, but it was the best available at the time. Of course a 60MB SCSI hard drive (with enclosure, power supply and controller card no less) ran me over $600 too, at the time. So a fast, 32GB SD card should be priced at around $1,679,360(!) based on that old SIMM RAM price. Seriously. My, my, my how times have changed for the better.

My Nikonians Gallery

Howard Carson, Managing Editor
Kickstartnews Inc. - http://www.kickstartnews.com

  

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jhonave Registered since 11th Jan 2010Fri 12-Jul-13 02:14 AM
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#23. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 22


San Diego, US
          


I recently shot a debutante party with my Nikon D7000 using two SanDisk cards in a main+backup RAW configuration. I initially used the SanDisk Extreme 8GB 30MB/s UHS-1 SDHC cards, but I noticed some "slowness." I switched to the SanDisk Extreme 16GB 45MB/s UHS-1 SDHC cards and was able to do fast continuous shooting of people, dancing in mixed lighting, until the buffer filled up. I did not have time to stop and analyze what was happening. This was simply my observation which prompted me to buy two more, but this time, the SanDisk Extreme Pro 32GB 95MB/s SDHC UHS-I cards from B&H. I wonder if anyone else has tried them. I think these will be great for my next gig. I hope so.

Passion 4 Photography
www.p4ph.com

  

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Mycenius Silver Member Nikonian since 25th Feb 2006Fri 12-Jul-13 09:04 AM
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#24. "RE: SDHC versus SDXC in D7100?"
In response to Reply # 23
Fri 12-Jul-13 09:05 AM by Mycenius

Auckland, NZ
          

>
>initially used the SanDisk Extreme 8GB 30MB/s UHS-1 SDHC
>cards, but I noticed some "slowness." I switched to
>the SanDisk Extreme 16GB 45MB/s UHS-1 SDHC cards...
>...until the buffer filled up.

I had one of these as my main card for my D90 (8GB 'Extreme' 30MB/s IIRC, might have said it was 45MB/s earlier in the thread), it now serves as my #2 slot card for overflow in the D7100 (for now).

>the SanDisk Extreme Pro 32GB 95MB/s SDHC UHS-I cards from
>B&H. I wonder if anyone else has tried them. I think these
>will be great for my next gig. I hope so.

I have now got one of these as my primary card for slot 1 in my D7100, and I have done some continuous shooting in RAW+JPG mode - it's a considerable improvement on the older 'Extreme' card (above), but does still slow up eventually, after a while, as the buffer eventually fills, but it takes longer for that to happen, even with RAW+JPG, and isn't too bad shooting continuously from that point...

John
Kiwi Nikonian
D7100 | Tokina 11-16mm f/2.8 | Nikkor 17-55mm f/2.8G | Nikkor 18-200mm f/3.5-5.6G | Tamron 70-300mm f/4.0-5.6 | Samyang 35mm f/1.4 | Nikkor 50mm f/1.8D | Nikkor 105mm f/2.8G Micro

  

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