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Archive 2012 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot...
  
 
skibum5
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p.1 #1 · p.1 #1 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


Lexar 1000x, it honestly didn't really do any better than a Sandisk Extreme Pro 90MB/s card with a 5D2 or 7D (or surely xxD) cam but with the 5D3.... WOW. And it lets the 5D3 deliver best in class buffer and longer contrinuous shooting times than either the 5D2 or 7D.

A few numbers (all tests at 1/800th shutter, no IS, no AF, no NR or any other in cam jpg special processing options, max continuous drive mode selected (7D pointed at a bright light so as to maintain max frame rate)) with the raw number being number of shots before you hear it slow down shooting and timed number is the continuous time you could shoot non-stop at the camera's max frame rate (derived by a simple frames/max fps of camera):

Test 1 (lens cap on or super underexposed near black frames (i.e. with requiring minimum for storage) at ISO100 on 5D3):

14 shots with a slow Lexar 16GB 200x card
17 shots with a 30MB/s SanDisk Extreme III 8GB card
20 shots (3.3s) with a 32GB SanDisk Extreme Pro 90GB/s card
35 shots (5.8s) with a 32GB Lexar 1000x card (whoa! 35! vs 20! 5.8s of continuous shooting vs only 3.3s!)

(so the Lexar 1000x makes a surprisingly large difference on the 5D3 and is well worth the $ if you seriously shoot action with the 5D3, do note that the 16GB 1000x card is said to be slower than the 32GB and larger 1000x cards so the advantage may be less if you go for the 16GB size; with this speed card the 5D3 continuous shooting time easily beats the 5D2 and 7D)

Test 2 (as above but on a 5D2):
16 shots (4.1s) with a SanDisk Extreme Pro 90MB/s card
17 shots (4.3s) with a Lexar 32GB 1000x card

(so the extra $ for the Lexar 1000x makes no difference on a 5D2; with this speed card the 5D3 actually lets you shoot continuously for less long than the 5D2 or 7D)

Test 3 (as above but on a 7D):
29 shots (3.7s) with a SanDisk Extreme Pro 90MB/s card
28 shots (3.5s) with a Lexar 32GB 1000x card

(so the extra $ for the Lexar 1000x makes no difference on a 7D, same result)

Test 4 (these have an actual image being shot and the ISOs are higher so each RAW file is larger, the performance drops considerably, especially above ISO800 and NOTE that the numbers will vary depending upon the scene shot as different scenes and exposures will produce different file sizes and any given scenario may bump all the numbers noticeably up or down; all are on the Lexar 32GB 1000x card):

ISO3200 5D3 - 20 shots (3.3s) - a big drop from the 35 for ISO100 black frame
ISO1600 5D3 - 24 shots (4s)
ISO800 5D3 - 30 shots (5s)

Test 5 (as above only this time a SanDisk Extreme Pro 90MB/s card was used in all cases):

ISO3200 5D3 - 14 shots (2.3s)
ISO1600 5D3 - 20 shots (3.3s)
ISO800 5D3 - 22 shots (3.7s)

Test 6 (as above only this time a SanDisk Extreme III 30MB/s card was used):
ISO800 5D3 - 15 shots (2.5s)

So yeah for most Canon cameras the Lexar 1000x will not be worth the money at all (unless you are want to pay that much for faster transfer speed to your computer and your computer supports USB3 and you have a USB3 card read that also takes full UDMA 7 advantage) but for the 5D3 wow if you are serious about shooting action and dont want to be saddled with a shorter shooting time buffer than the old 5D2 or 7D then get the Lexar 1000x, suddenly you actually can shoot for longer times non-stop than with the 5D2 or 7D and often by a large margin. So for the 5D3 and action it is well worth it.



May 26, 2012 at 05:18 AM
skibum5
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p.1 #2 · p.1 #2 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


One thing to note, some report that the 16GB sized Lexar 1000x are slower then the 32-128GB 1000x cards so the 16GB one might only offer perhaps half (??) the performance advantage over the SanDisk Extreme Pro card that the larger ones do, so the value becomes a lot more debatable for that size perhaps.


May 26, 2012 at 05:41 AM
Pixel Perfect
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p.1 #3 · p.1 #3 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


Thanks for the test, very useful information. Too bad they crippled the SD support.


May 26, 2012 at 10:38 AM
arbitrage
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p.1 #4 · p.1 #4 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


Thanks, skibum5. This is the kind of info I was waiting to get. As I've said in other threads, I'm currently using the 400x Lexar 16GB cards in the 5d3 and Transcend 400x 16GB cards in the 7d and 5D2. I'm going to try my card out with similar tests and see if the SDEP will give me any improvement as they are farily cheap right now. Obviously the 1000x Lexar will be beneficial if I find I hit the buffer too often. However, I usually try to shoot small bursts to minimize the amount of files I have to sort through at the end of the day but I did run into my buffer a few times while shooting swan flybys last month.

Could you post the average files sizes for the different test conditions? Thanks.



May 26, 2012 at 01:52 PM
 

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skibum5
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p.1 #5 · p.1 #5 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


arbitrage wrote:
Thanks, skibum5. This is the kind of info I was waiting to get. As I've said in other threads, I'm currently using the 400x Lexar 16GB cards in the 5d3 and Transcend 400x 16GB cards in the 7d and 5D2. I'm going to try my card out with similar tests and see if the SDEP will give me any improvement as they are farily cheap right now. Obviously the 1000x Lexar will be beneficial if I find I hit the buffer too often. However, I usually try to shoot small bursts to minimize the amount of files I have to
...Show more

sorry I deleted all the files after each test so the size info has been lost



May 26, 2012 at 09:56 PM
arbitrage
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p.1 #6 · p.1 #6 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


skibum5 wrote:
sorry I deleted all the files after each test so the size info has been lost


No problem, I ran some tests of my own with severely underexposed black frames at iso100 1/500 and the Lexar 400x gets maximum 16 shots before the buffer kicks in. Amazingly, the 7D gets close to 30 shots and then the slowdown is not much at all, quick pause and then almost kicks it back into high gear very quickly. The 5D3 slowdown is horrible once the buffer is filled. Never recovers. The 7D is much better at this but file sizes are smaller with it and it is shooting 2fps more.

So for a 7D, even the 400x Lexar will get you the maximum so save your cash. However, for the 5D3, speed of card does seem to matter a lot as you found out.



May 26, 2012 at 10:11 PM
skibum5
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p.1 #7 · p.1 #7 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


arbitrage wrote:
No problem, I ran some tests of my own with severely underexposed black frames at iso100 1/500 and the Lexar 400x gets maximum 16 shots before the buffer kicks in. Amazingly, the 7D gets close to 30 shots and then the slowdown is not much at all, quick pause and then almost kicks it back into high gear very quickly. The 5D3 slowdown is horrible once the buffer is filled. Never recovers. The 7D is much better at this but file sizes are smaller with it and it is shooting 2fps more.

So for a 7D, even the 400x Lexar will
...Show more

You bring up the good point that the faster cards not only hit the slowdown later but can more quickly flush buffer and do another full set.



May 26, 2012 at 11:16 PM
skibum5
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p.1 #8 · p.1 #8 · Lexar 1000x and 7D,5D2 and 5D3 action (hint matters a lot for one and not for the rest)


7D 2.0 update:

Even with a Sandisk Extreme Pro 90MB/s 32GB card it appears to be zero difference compared to 1.2.5.

HOWEVER, pop in a Lexar 1000x 32GB card and with 2.0 it DOES come to life. With 1.2.5 that Lexar card made no difference, now it does.


Test 3 (on a 7D 1.2.5, shoot at a bright light or up at bright sky so the fps stay maxed, sadly can't use the same, repeatable body cap on as with all the other bodies since that makes 7D fps go to a crawl):
23 (29??) shots (up to 3.7s??) with a SanDisk Extreme Pro 90MB/s card
23 (28??) shots (up to 3.5s??) with a Lexar 32GB 1000x card

(not sure, when I first did the test I got the large 28-29 shot buffer, now I just can't replicate it, maybe something about the scene that time made it store the min level of data per frame while still keeping fps at max or maybe it was dark enough that time to not slow the fps fully but just a touch and I hadn't realized? anyway, I'd go with the 23 number)

(so the extra $ for the Lexar 1000x makes no difference on a 7D, same result)

Test 3b (as 7D above with now with 2.0 firmware):
getting about 27-30ish instead of closer to 23 for the current bright scene being shot (5D3 gets about 27 in this scenario) so the 7D now does about the same to a bit more frames than the 5D3 although at 8fps the total continuous shooting time is LESS than for the 5D3

and then trying it with a Sandisk 90MB/s extremepro instead 7D 2.0 gets:
about 23

(so with 2.0 firmware the Lexar 1000x now DOES make a HUGE difference for the 7D even if not quite as insanely huge as with the 5D3 since you get in this test about 23ish vs about 29ish and it doesn't slow as much once it slows either and refreshes more quickly too; also appears to show that you'd need one of the best of the best, the Lexar 1000x cards to take any advantage of the 2.0 buffer)




Aug 14, 2012 at 08:33 PM





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