Randy Posted June 26, 2015 Share Posted June 26, 2015 I have pre-ordered my Sony A7Rii and have been wondering about memory cards. I found a Lexar Professional 1000x 128 gig 150MB/s SDXC UHS-II/U3 card for $57 USD. this seems like a good deal and it said it is backwards compatible to UHS-I devices. Anyone have any advice on if this will be compatible with the A7Rii? I looked on the Sony web site and it looks like it can take a SDXC UHS-I. Since the 4K is 100MB/s I figure this should work well. Does anyone have any preference? Should I not get a UHS-II/U3 version? Link to post Share on other sites More sharing options...
Advertisement Posted June 26, 2015 Posted June 26, 2015 Hi Randy, Take a look here Memory Cards for A7Rii. I'm sure you'll find what you were looking for!
albertdros Posted June 26, 2015 Share Posted June 26, 2015 Pretty good and will most probably work totally fine. Link to post Share on other sites More sharing options...
David D. Busch Posted June 26, 2015 Share Posted June 26, 2015 That's the exact card I am using with my a7r, and, once I sell that camera, I'll be using the same card in my a7r II. I paid more than $57 for mine, however. It works great. Link to post Share on other sites More sharing options...
Randy Posted June 27, 2015 Author Share Posted June 27, 2015 Thanks, I bought 2 of them just in case. Hopefully I can return my 32 gig 280mb/s card to best buy. Link to post Share on other sites More sharing options...
davidgp Posted June 28, 2015 Share Posted June 28, 2015 I have pre-ordered my Sony A7Rii and have been wondering about memory cards. I found a Lexar Professional 1000x 128 gig 150MB/s SDXC UHS-II/U3 card for $57 USD. this seems like a good deal and it said it is backwards compatible to UHS-I devices. Anyone have any advice on if this will be compatible with the A7Rii? I looked on the Sony web site and it looks like it can take a SDXC UHS-I. Since the 4K is 100MB/s I figure this should work well. Careful with the units. The card it is 150 MegaBytes per second (MB/s), the camera records at 4k with 100 MegaBits per second (Mb/s or Mbps). 1 Byte equals to 8 bits... So you will need a card able to keep up around 13MB/s of continuously writing. Usually it is best to get even higher than that, because manufacturers overstate a bit their writting speeds... Link to post Share on other sites More sharing options...
rmcohen Posted June 28, 2015 Share Posted June 28, 2015 Note that per Lexar, the max write speed is only 75MB/s. Link to post Share on other sites More sharing options...
DirkB Posted June 28, 2015 Share Posted June 28, 2015 Hi Gents Thanks to davidgp for the clarification on the Mbit/s vs. MB/s differentiation. That's overlooked many times. Regarding card speeds you need to differentiate two type indicators - the UHS classification and the minimum write speed classification. UHS is indicated as either UHS-I or UHS-II. The difference here is the bus spped of the card, UHS-I is limited to 104 MB/s, UHS-II to 312 MB/s. That sounds much in the first place, but considering that the bus speed is the limiting factor on writing from camera buffer to memory card one can imagine, that card bus speed is important to stills shooters requiring as much serial speed as possible. Second is the min write speed. That is indicated by the U1 or U3 labelling on the card. Quite easy to understand, the number is the multiplier to 10 MB/s, meaning U1 cards need to guarantee min writing of 10 MB/s, U3 cards 30 MB/s. Most important is to know whether your camera will support UHS-II. Because if not, it makes not really sense to pay the additional price tag on the SD card. Unfortunately the manufacturers do not clearly indicate that even not in the detailed specs. Link to post Share on other sites More sharing options...
Randy Posted June 28, 2015 Author Share Posted June 28, 2015 Thanks for all this clarification. Here is an article talking about the GH4 4k memory card needs. http://suggestionofmotion.com/blog/panasonic-gh4-memory-card-requirements/ Link to post Share on other sites More sharing options...
Ashen Posted June 4, 2017 Share Posted June 4, 2017 Hi! I'm new here. I bought an a7r2 and now I want by some SD Card to it. What do you think? Is this card enough to the camera? https://www.amazon.co.uk/d/q3s/SanDisk-Ultra-SDXC-Class-Memory-Frustration-Packaging/B014IX03CE/ref=sr_1_2?ie=UTF8&qid=1496577735&sr=8-2&keywords=sandisk+sd+card+128 I don't want continuous shooting. I shoot landscapes and portraits. Link to post Share on other sites More sharing options...
jstevensphoto Posted June 10, 2017 Share Posted June 10, 2017 I use a Lexar 256GB 1000X. Supposed to be 150mb per second. I doubt it is really that fast, but this card works fine for me. Link to post Share on other sites More sharing options...
SDeGat Posted July 22, 2017 Share Posted July 22, 2017 If I understand the article referenced below, the A7R2 is not very fast and it serves no purpose to buy more than a UHS-1 card. http://www.cameramemoryspeed.com/sony-a7r-ii/sd-card-comparison/ Seems like we are stuck with the zooming delay. Coming from Nikon, I was not used to such a delay... cws 1 Link to post Share on other sites More sharing options...
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