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Best Memory Cards Sony A7c

  • March 2, 2022
  • AGriffin

The Sony A7c uses a single UHS-II memory card of any size. Here is a quick list of the best SD cards for the Sony A7c, with a few great options, and you most likely don’t need the fastest SD cards.

 

Sony A7c Recommended Memory Cards

Best SD Memory Card Sony A7CThere are three categories of cards you should consider. Fast v90 UHS-II cards, v60 UHS-II cards, and U3 UHS-I cards. There is also a UHS-II card by Sony that reads at UHS-II speeds but it is optimized for UHS-I write speeds.

V90 UHS-II cards are the fastest memory cards for the Sony a7c. They are great for photographers that do a lot of continuous bursting but they are overkill for everything else.

V60 UHS-II cards are perfect for photographers that burst sometimes but mostly shoot in single-shot mode. They’re also great for video shooters since they allow you to transfer large files quickly to your computer.

v30 UHS-I cards are fine for casual photographers and even good for video shooters. These are great for photographers that want large cards at a reasonable price.

Here are the top cards for each speed class.

Card Name USB Read USB Write Camera Write Check Price
UHS-II V90        
Sony G Tough 270.6 229.1 184.5 MB/s Amazon
Delkin Black V90 259.9 225.4 183.4 MB/s B&H
Sandisk Extreme Pro 293.7 242.2 181.0 MB/s Amazon
Prograde V90 290.5 218.4 116.9 MB/s Amazon
UHS-II v60        
Sony M 282.4 129.5 88.0 MB/s Amazon
ProGrade V60 167.6 92.14 88.4 MB/s Amazon
Sony E 128GB — — 120 MB/s *rated Amazon
UHS-II U3        
Sony E 282.3 103.8 75 MB/s *rated Amazon

 

Do You Need UHS-II Memory Cards?

UHS-II cards come in three different speed classes. U3, V60 and V90. What these numbers represent is the minimum write speed of the card. V90 can maintain a minimum of 90MB/s, v60 cards 60MB/s U3 30MB/s.

You should choose one of these cards depending on the price, how much money you’re willing to spend, and the performance you need. Casually shooters might just like V60 cards. They can buy a bigger card for the same price and probably would never even notice the speed difference. Sports shooters that do a lot of continuous bursting would definitely benefit from a v90 card.

Videographers and vloggers only need U3 cards, so this allows you to buy much larger cards to store all that video.

 

What Size Memory Card Is Best For The Sony A7c?

The best-size memory card is going to be different for everyone.

64GB – If you’re just shooting JPG and not a lot of video, a 64GB card will be fine.

128GB – If you shoot RAW and video here and there I’d start with a 128GB card.

256GB – You most likely won’t need bigger than a 128GB card unless you shoot a lot of video and are not able to clear off the card regularly, or you’re traveling and are not bringing a computer.

 

Sony A7C Memory Card Related Specs

Sensor: 24.2MP Full-Frame Exmor R BSI Sensor
Processor: BIONZ X Image Processor
Continuous Shoot: 10fps
Record Limit: unlimited
Est. Buffer Size: 1.5GB (estimate based on A7III buffer)
Memory Card Compatibility: Single Card Slots -UHS-II
Maximum Memory Card Size: no limit.
Shots To Fill Buffer RAW: 115
Video: 4k30p 8-bit 4:2:0 100Mbps.

Also, check out my Sony A7c Accessories List

Best Memory Cards For 4k Video

Although 4k video seems like a lot of data, the video bitrate is only 100Mbps. This translates to a 12.5MB/s data stream.

A U3 rated card can maintain a minimum stream of 30MB/s, so all you’ll need for 4k video is a U3 UHS-I card.

You do not need a UHS-II card for 4k video, but they are great when for transferring data from the card to a computer with a UHS-II memory card reader since this transfer speed can be significantly faster.

 

Maximum Video Record Times by Memory Card Size

This chart shows the various bitrates and the amount of record time you can get from various sizes of memory cards.

Resolution Format Bitrate 32GB 64GB 128GB 256GB
4k30p, 24p XAVC S 4K 100Mbps 43min 85min 171min 341min
4k30p, 24p XAVC S 4K 60Mbps 71min 142min 284min 569min
1080 120p, 100p XAVC S HD 100Mbps 43min 85min 171min 341min
1080 120p, 100p XAVC S HD 60Mbps 71min 142min 284min 569min
1080 24p, 25p, 30p, 50p, 60p XAVC S HD 50Mbps 85min 171min 341min 683min
1080 25p, 30p XAVC S HD 16Mbps 267min 533min 1067min 2133min
1080 60i AVCHD 24Mbps 178min 356min 711min 1422min
1080 60i AVCHD 17Mbps 251min 502min 1004min 2008min

 

Best Memory Cards Sony A7C Conclusions

Buying memory cards for Sony cameras today is pretty straightforward, they have good compatibility with most brands now so you don’t need to worry about that as you did in the past. Sticking with big brands like Sony or Sandisk is still probably the best, but there are plenty of other great options out there with great performance. For example, I use Delkin UHS-II cards in my A7rIII and they’ve worked great for years.

**This website contains affiliate links and I will be compensated if you click them to make a purchase.
AGriffin

Professional editor, blogger and photographer from Los Angeles California.

Related Topics
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  • Sony A7c
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