canon 5dsr- fastest cards availble?

[paul_jones]

can anyone tell me what the fastest possible cards i can get for my new 5dsr?


I was going to get the lexar 1066 udma7 cards. But reading somewhere they say the SD slot is a lot faster than the old sd slot. Should I be considering fast SD cards?

the priority is the fastest writing to cards, but i do prefer the size of the cf cards for handling.

cheers paul
 

[Bart_van_der_Wolf]

can anyone tell me what the fastest possible cards i can get for my new 5dsr?


I was going to get the lexar 1066 udma7 cards. But reading somewhere they say the SD slot is a lot faster than the old sd slot. Should I be considering fast SD cards?

the priority is the fastest writing to cards, but i do prefer the size of the cf cards for handling.

Hi Paul,

This assumes that the card is limiting the write speed of the camera. What if it's the other way around?

Of course it's also nice to have a fast card for transfer of the data from the card to another storage device, but the card doesn't need to be much faster than the camera can write the data over its card interface if you're concerned about capture/recording speed.

Since the video capabilities of the camera are modest (it's not its main purpose but stills are), it only needs to keep up with emptying the camera buffer in case of continuous shooting. It might also mean that a cheaper/larger capacity card, or more cards, can be had for the same price. I do know that cards may get a bit slower over time (due to things like wear leveling), but it may be useful to first get some user stats about camera buffer reading speed on different cards before spending more money than strictly needed. Maybe there is also a difference between the CF type 1 and the UDMA CF card speeds, due to their different architecture.

To give an indication for the 5D Mark III, Canon tech support states that a 60 MB/s card is more than adequate for the 5d Mark III. Minimum speed of 30 MB/s is advised. But because of fluctuations in write speed, 45MB/s is recommended. This is for 6 frames per second. Is the card interface writing speed of the 5DS / 5DS R much faster?

So it remains to be seen how that actually turns out to be for the 5DS / 5DS R with its 5 (or 3) frames (something like 55MB Raw size each) per second capture speed (writing to faster internal memory), and camera buffer write-out speed over a slower interface.

Cheers,
Bart

[paul_jones]

Hi Paul,

This assumes that the card is limiting the write speed of the camera. What if it's the other way around?

Of course it's also nice to have a fast card for transfer of the data from the card to another storage device, but the card doesn't need to be much faster than the camera can write the data over its card interface if you're concerned about capture/recording speed.

Since the video capabilities of the camera are modest (it's not its main purpose but stills are), it only needs to keep up with emptying the camera buffer in case of continuous shooting. It might also mean that a cheaper/larger capacity card, or more cards, can be had for the same price. I do know that cards may get a bit slower over time (due to things like wear leveling), but it may be useful to first get some user stats about camera buffer reading speed on different cards before spending more money than strictly needed. Maybe there is also a difference between the CF type 1 and the UDMA CF card speeds, due to their different architecture.

To give an indication for the 5D Mark III, Canon tech support states that a 60 MB/s card is more than adequate for the 5d Mark III. Minimum speed of 30 MB/s is advised. But because of fluctuations in write speed, 45MB/s is recommended. This is for 6 frames per second. Is the card interface writing speed of the 5DS / 5DS R much faster?

So it remains to be seen how that actually turns out to be for the 5DS / 5DS R with its 5 (or 3) frames (something like 55MB Raw size each) per second capture speed (writing to faster internal memory), and camera buffer write-out speed over a slower interface.

Cheers,
Bart

I realise that the speed of the camera throttles the speed of the cards, but when i upgraded from 800x to 1066x CF cards there was a big difference in clearing the card when at buffer.
now that the 5ds(r) has UHS-I support SD card speed, which is far faster than the 5dmk3, I am keen to know whether a fast SD card is faster than the CF cards.

so if any one can help with specs and can give an indication of speed (i'm not good at working out these), i can make an order from BH for cards.

cheers paul

[paul_jones]

i seem to have found the answer about the card speed looking at the speed tests with the 7dmk2, which has the same specs with card writing-

http://www.cameramemoryspeed.com/canon-7d-mark-ii/fastest-sd-cf-card-comparison/

paul

[Bart_van_der_Wolf]

i seem to have found the answer about the card speed looking at the speed tests with the 7dmk2, which has the same specs with card writing-

http://www.cameramemoryspeed.com/canon-7d-mark-ii/fastest-sd-cf-card-comparison/

Hi Paul,

So assuming the interface speed is the same (QED), you can buy a 160x speed card for $65 that takes, say, 0.5 second to write a file, or you can triple the capacity at $20 each for cards of reputable brand that take 1 second to write a file. How many of the shots will be taken with this studio camera  in bursts of 5 shots or more?

I'd go for the larger capacity, unless I absolutely need the highest throughput for a rare occasion. These faster cards will drop in price, so postponing the purchase of those might also save some money. Large capacity is more relevant for my type of shooting, with bracketing and stitching the cards will fill up faster with large Raws.

Cheers,
Bart

[KAHA]

Kia Ora Paul,

If you have the time could you post a little review on your thoughts of using the camera in your everyday workflow? Cheers!

[NancyP]

Thanks for the info on cards in the 7D2. I note that they give continuous burst performance, relevant in the 7D2, maybe not so relevant in the 5Ds/r.

[Rainer SLP]

http://www.cameramemoryspeed.com/canon-7d-mark-ii/fastest-sd-cf-card-comparison/

Hi,

I just made a test with my EOS-1D X at 12fps and the camera writes to the card about 103.9 MB/s and I am using the SanDisk Extreme Pro 160 MB/s UDMA 7.

I made images during 30 seconds (as in above link) and got 86 images onto the card.

The chosen files were RAW +S jpg which in average were together 33.6MB per set of images.

[paul_jones]

Hi Paul,

So assuming the interface speed is the same (QED), you can buy a 160x speed card for $65 that takes, say, 0.5 second to write a file, or you can triple the capacity at $20 each for cards of reputable brand that take 1 second to write a file. How many of the shots will be taken with this studio camera  in bursts of 5 shots or more?

I'd go for the larger capacity, unless I absolutely need the highest throughput for a rare occasion. These faster cards will drop in price, so postponing the purchase of those might also save some money. Large capacity is more relevant for my type of shooting, with bracketing and stitching the cards will fill up faster with large Raws.

Cheers,
Bart

i shoot lifestyle mainly and i shoot a lot so constantly at buffer. the 5dmk3 at buffer with lexar 1066x cf cards i still have about better than a frame per sec when i hit buffer. hopefully the 5dsr won't be much slower.
I'm buying have a dozen of these -
http://www.bhphotovideo.com/c/product/1031509-REG/lexar_lcf64gcrbna10662_64gb_pro_compact_flash.html

paul

[paul_jones]

Kia Ora Paul,

If you have the time could you post a little review on your thoughts of using the camera in your everyday workflow? Cheers!

hi david, will do.

i have a shoot i will use this on thats only shooting to card (rather than tethered), so i will say how things go. i will still have my mk3 as backup..

i am looking forward to having some more res to help with retouch.

paul

[dwswager]

can anyone tell me what the fastest possible cards i can get for my new 5dsr?


I was going to get the lexar 1066 udma7 cards. But reading somewhere they say the SD slot is a lot faster than the old sd slot. Should I be considering fast SD cards?

the priority is the fastest writing to cards, but i do prefer the size of the cf cards for handling.

cheers paul
 

Compact Flash cards are still faster than UHS-I SD cards.  I think UHS-II should bring them to somewhat of a parity.

Lexar 1066x Compact Flash is slightly faster than the Sandisk Extreme Pro Compact Flash.  I also use the Extreme Pro UHS-I SD cards.

As far as in camera speed goes, it only matters if the buffer is too small for the length of bursts you are likely to shoot.  I shoot the 36MP Nikon D810 and it's top speed at that pixel size is 5fps and I've never hit the buffer limit shooting sports. I'm almost ambivalent about which card I use now because the card speed is not limiting me in any way.

Older cameras would lock up the camera during a buffer flush.  Most new cameras don't do that.  I like compact flash because they are more durable in every way (send and SD card through the washer and dryer).  But I like that most laptops and other devices can take the SD card directly without an outboard reader.

The Transcend $12 USB3 reader is the best value in readers based on speed and price.

[Bart_van_der_Wolf]

i shoot lifestyle mainly and i shoot a lot so constantly at buffer.

I've read that the maximum burst rate of the EOS 5DS and 5DS R is 14 RAW files or 510 JPEGs at 5 frames per second using a UDMA 7 card. By way of comparison, Canon rates the 5D Mark III capable of a continuous burst 18 RAW files or 16270 JPEGs using a 128GB UDMA 7 card.

After it fills the buffer at 5 frames/second, there will probably be not much more of a slow down than to (presumably) the output speed to card at 1-2 frames per second (depending on card and camera interface). I don't know how smooth that will run when the buffer is kept filling up at max speed.

I'm still a bit puzzled by the need for a high burst speed beyond 14 frames though, since this is not an action camera but more for a studio setting (requiring flash to regenerate and such), so not really a spray and pray type of use. But different strokes for different folks, I guess.

Cheers,
Bart

[paul_jones]

Heres my test to see how fast the 5dsr (that i picked up today) shoots to card.

when it hits buffer if spits out two shots together in under a second- still faster than most medium format!

[Bart_van_der_Wolf]

Heres my test to see how fast the 5dsr (that i picked up today) shoots to card.

when it hits buffer if spits out two shots together in under a second- still faster than most medium format!

Thanks for the feedback, and I'm glad that the 2  frames/sec with a full buffer is confirmed for a fast card, probably compared with 1 frame/sec for a slower one. Overall the image interval seem very fast for such large Raw files, and the buffer capacity seems is capable to handle a decent number of frames at full speed.

Enjoy the new camera.

Cheers,
Bart

[jeffreybehr]

...the results here...
http://www.dpreview.com/forums/post/56017902

In short, my fastest SD card is 12% SLOWER than the average of my seven FAST CF cards.

[paul_jones]

i have been shooting heavily for the last week on the 5dsr. I've shot 16k of shots already! i shoot just as fast as my mk3, but the storage is getting up there!

the camera is quite slow when you hit buffer, not to write to card, but to bring up a pic on the back. sometimes it would take 5-10 sec or more to display- which feels like a eternity when you are shoot quickly before the sun goes down!

the files are really nice, but no more headroom it the highlights. but i can tolerate a higher iso than i could with the mk3 as the grain is so much finer at the same magnification.

paul

[nemophoto]

I just purchased two more Lexar 32GB 1066x UDMA7 cards for use with my 5Ds. From my shooting with the 1Dx, I've rarely hit the buffer (and I shoot fast) with my Lexar 32GB, 16GB and even 800x 8GB. I use a mixture of cards, and even still carry a 4GB, but can shoot a fashion catalog two days without reformatting. (I use my cards like a roll of film -- too hard to change habits! Plus a safeguard of losing a couple of shots by cramming them on one card and then losing or trashing the card.) I think if you stick with cards that are UDMA7 plus at least 800x, you'll probably be fine. Remember, the 1066x etc. mean READ speed, not write. But most manufacturers are pretty good about putting the minimum write speed on the card specs.