Welcome to my Sony A6700 (ILCE-6700) memory card guide that will help you find the best cards for your needs and budget.
Table of Contents[Hide][Show]
- Which Memory Cards are Compatible?
- In-Camera Write Speed Comparison
UHS-II Memory Card Buffer Tests+−
- 1. Sony SF-G Tough UHS-II - 64GB
- 2. Kingston Canvas React Plus UHS-II - 64GB
- 3. Hoodman Steel 2000X - 64GB
- 4. PNY X-PRO 90 - 64 GB
- 5. Angelbird AV Pro Mk 2 V90 - 64 GB
- 6. Ritz Gear Video Pro - 64 GB
- 7. Lexar Professional 2000X UHS-II - 64GB
- 8. Transcend 700S UHS-II - 64GB
- 9. Delkin Devices POWER UHS-II - 64GB
- 10. Exascend Catalyst UHS-II - 64 GB
- 11. SanDisk Extreme Pro UHS-II - 64 GB
- 12. ProGrade V90 UHS-II - 64 GB
- 13. Integral Ultima Pro X2 UHS-II - 64GB
- 14. Sony SF-M Tough UHS-II - 64 GB
- 15. Sony SF-M UHS-II - 64 GB
- 16. ProGrade V60 UHS-II - 64 GB
- 17. Lexar Professional 1667X UHS-II - 64 GB
- 18. Sony SF-E UHS-II - 64 GB
- Compatible Memory Cards for Video
- Number of Recordable Images
- Recordable Movie Times
- Summary
- Sony A6700 Guides & Resources
- FAQs
Which Memory Cards are Compatible?
The Sony A6700 has a single memory card slot that is compatible with UHS-I and UHS-II SD/SDHC/SDXC memory cards.
Here’s a quick speed comparison between UHS-I and UHS-II cards.
- UHS-I: theoretical maximum transfer speeds of up to 104MB/s
- UHS-II: theoretical maximum transfer speeds of up to 312MB/s
In-Camera Write Speed Comparison
These in-camera tests were carried out using my Sony A6700 and 64GB UHS-II memory cards.
Best UHS-II Memory Cards for Sony A6700
| Memory Card | * Approx In-Camera Write Speed | * Shots Before Buffer Hit | Video Rating | Price Check |
|---|---|---|---|---|
| 1. Sony SF-G Tough | 230 MB/s | 91 | V90 | B&H Photo | Amazon |
| 2. Kingston Canvas React Plus | 227 MB/s | 84 | V90 | B&H Photo | Amazon |
| 3. Hoodman Steel 2000X | 226 MB/s | 84 | V90 | B&H Photo | Amazon |
| 4. PNY X-PRO 90 | 226 MB/s | 82 | V90 | B&H Photo | Amazon |
| 5. Angelbird AV Pro Mk 2 V90 | 225 MB/s | 86 | V90 | B&H Photo | Amazon |
| 6. Ritzgear Video Pro | 224 MB/s | 83 | V90 | B&H Photo | Amazon |
| 7. Lexar Professional 2000X | 223 MB/s | 84 | V90 | B&H Photo | Amazon |
| 8. Transcend SD 700S | 223 MB/s | 84 | V90 | B&H Photo | Amazon |
| 9. Delkin Devices POWER | 221 MB/s | 81 | V90 | B&H Photo | Amazon |
| 10. Exascend Catalyst UHS-II | 221 MB/s | 79 | V90 | B&H Photo | Amazon |
| 11. SanDisk Extreme Pro | 217 MB/s | 79 | V90 | B&H Photo | Amazon |
| 12. ProGrade V90 | 218 MB/s | 78 | V90 | B&H Photo | Amazon |
| 13. Integral Ultima Pro X2 | 217 MB/s | 79 | V90 | B&H Photo | Amazon |
| 14. Sony SF-M Tough | 145 MB/s | 47 | V60 | B&H Photo | Amazon |
| 15. Sony SF-M | 145 MB/s | 47 | V60 | B&H Photo | Amazon |
| 16. ProGrade V60 | 129 MB/s | 44 | V60 | B&H Photo | Amazon |
| 17. Lexar Professional 1667X | 100 MB/s | 38 | V60 | B&H Photo | Amazon |
| 18. Sony SF-E | 72 MB/s | 34 | V30 | B&H Photo | Amazon |
Best UHS-I SD Memory Cards for Sony A6700
| Memory Card | * Approx In-Camera Write Speed | * Shots Before Buffer Hit | Video Rating | Price Check |
|---|---|---|---|---|
| 1. Delkin Devices Advantage UHS-I | 79 MB/s | 35 | V30 | B&H Photo | Amazon |
| 2. Kingston Canvas Go! Plus UHS-I | 79 MB/s | 35 | V30 | B&H Photo | Amazon |
| 3. SanDisk Extreme Pro UHS-I | 73 MB/s | 34 | V30 | B&H Photo | Amazon |
| 4. Lexar Professional 1066x UHS-I | 62 MB/s | 33 | V30 | B&H Photo | Amazon |
| 5. Transcend 500S UHS-I | 56 MB/s | 33 | V30 | B&H Photo | Amazon |
Sony A6700 Price Check at: B&H Photo
Sony A6700 Forum & Facebook Group
If you are looking for further help and advice on the A6700 or would simply like to share your photos and videos, then please head over to our friendly APS-C Forum. If you prefer Facebook then I also run the Sony A6700 + A6600 Shooters Group.
UHS-II Memory Card Buffer Tests
Here are my recommendations for UHS-II memory cards for the A6700 based on my in-camera speed tests using 64GB cards.
1. Sony SF-G Tough UHS-II – 64GB
The Sony Tough series of memory cards are 18 times stronger than traditional SD cards, bend proof to 180N, drop-proof to 5 meters, waterproof to a depth of 5 meters for up to 72 hours (IPX8 rating) and dust proof with an IP6X rating.
Tough cards feature a one-piece ribless structure and don’t have the common lock switch, they are also X-ray proof, magnet proof, anti-static and temperature proof.
- Max Read Speed: 300 MB/s
- Max Write Speed: 299 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 230 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 91 | 3.85 |
| Lossless Compressed RAW (35.8MB) – 7fps | 376 | 2.98 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.36 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 27 | 3.23 |
2. Kingston Canvas React Plus UHS-II – 64GB
The Kingston Canvas React Plus UHS-II memory cards are one of the fastest and most affordable cards you can put in the A6700. They are typically around 40% cheaper than Sony’s SF-G Tough cards with practically the same performance.
- Max Read Speed: 300 MB/s
- Max Write Speed: 290 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 227 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 84 | 3.73 |
| Lossless Compressed RAW (35.8MB) – 7fps | 248 | 2.73 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.28 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 22 | 3.35 |
3. Hoodman Steel 2000X – 64GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 260 MB/s
- Video Rating: V90
- Capacities: 64GB, 128GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 226 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 84 | 3.78 |
| Lossless Compressed RAW (35.8MB) – 7fps | 325 | 2.76 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.36 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 27 | 3.30 |
4. PNY X-PRO 90 – 64 GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 280 MB/s
- Video Rating: V90
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 226 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 82 | 3.66 |
| Lossless Compressed RAW (35.8MB) – 7fps | 236 | 2.53 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.38 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 26 | 3.45 |
5. Angelbird AV Pro Mk 2 V90 – 64 GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 280 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 225 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 86 | 3.95 |
| Lossless Compressed RAW (35.8MB) – 7fps | 290 | 2.86 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.40 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 26 | 3.45 |
6. Ritz Gear Video Pro – 64 GB
- Max Read Speed: 280 MB/s
- Max Write Speed: 250 MB/s
- Video Rating: V90
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 224 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 83 | 3.83 |
| Lossless Compressed RAW (35.8MB) – 7fps | 235 | 2.64 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.28 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 27 | 3.31 |
Check Price & Reviews: Ritz Gear Video Pro
At: B&H Photo | Amazon
7. Lexar Professional 2000X UHS-II – 64GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 260 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 223 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 84 | 3.91 |
| Lossless Compressed RAW (35.8MB) – 7fps | 235 | 2.66 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.46 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 26 | 3.53 |
8. Transcend 700S UHS-II – 64GB
- Max Read Speed: 285 MB/s
- Max Write Speed: 180 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 223 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 84 | 3.93 |
| Lossless Compressed RAW (35.8MB) – 7fps | 345 | 2.52 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.41 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 26 | 3.51 |
9. Delkin Devices POWER UHS-II – 64GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 250 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 221 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 81 | 3.83 |
| Lossless Compressed RAW (35.8MB) – 7fps | 133 | 2.76 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.79 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 25 | 3.46 |
10. Exascend Catalyst UHS-II – 64 GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 280 MB/s
- Video Rating: V90
- Capacities: 64GB, 128GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 221 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 79 | 3.85 |
| Lossless Compressed RAW (35.8MB) – 7fps | 135 | 4.06 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.75 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 26 | 3.57 |
Check Price & Reviews: Exascend Catalyst UHS-II
At: B&H Photo | Amazon
11. SanDisk Extreme Pro UHS-II – 64 GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 260 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 217 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 79 | 4.10 |
| Lossless Compressed RAW (35.8MB) – 7fps | 98 | 2.76 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 26 | 4.78 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 25 | 3.35 |
12. ProGrade V90 UHS-II – 64 GB
- Max Read Speed: 300 MB/s
- Max Write Speed: 250 MB/s
- Video Rating: V90
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 218 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 78 | 3.79 |
| Lossless Compressed RAW (35.8MB) – 7fps | 111 | 2.70 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 28 | 4.80 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 25 | 3.53 |
13. Integral Ultima Pro X2 UHS-II – 64GB
- Max Read Speed: 280 MB/s
- Max Write Speed: 240 MB/s
- Video Rating: V90
- Capacities: 32GB, 64GB, 128GB, 256GB, 512GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 217 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 79 | 4.00 |
| Lossless Compressed RAW (35.8MB) – 7fps | 89 | 3.70 |
| JPEG Extra Fine (21.3MB) | Over 1000 | Under 2 sec |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 27 | 4.58 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 25 | 3.43 |
Check Price & Reviews: Integral Ultima Pro X2 UHS-II
At: B&H Photo | Amazon
14. Sony SF-M Tough UHS-II – 64 GB
Sony’s SF-M Tough Series are similar in construction to the more expensive SF-G version but these are only rated V60 for video and their read time has been cut to 277MB/s and the write time to 150MB/s.
- Max Read Speed: 277 MB/s
- Max Write Speed: 150 MB/s
- Video Rating: V60
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 145 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 47 | 5.73 |
| Lossless Compressed RAW (35.8MB) – 7fps | 35 | 4.00 |
| JPEG Extra Fine (21.3MB) | 53 | 3.41 |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 24 | 7.00 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 19 | 5.25 |
15. Sony SF-M UHS-II – 64 GB
Sony’s SF-M Series are identical to the SF-M Tough Series just without the added toughness so they cost a little less.
- Max Read Speed: 277 MB/s
- Max Write Speed: 150 MB/s
- Video Rating: V60
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 145 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 47 | 5.72 |
| Lossless Compressed RAW (35.8MB) – 7fps | 35 | 4.00 |
| JPEG Extra Fine (21.3MB) | 53 | 3.43 |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 24 | 7.01 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 19 | 5.24 |
16. ProGrade V60 UHS-II – 64 GB
- Max Read Speed: 277 MB/s
- Max Write Speed: 130 MB/s
- Video Rating: V60
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 129 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 44 | 6.38 |
| Lossless Compressed RAW (35.8MB) – 7fps | 31 | 4.21 |
| JPEG Extra Fine (21.3MB) | 47 | 3.80 |
| HEIF 4:2:0 (11MB) | Over 1000 | Under 2 sec |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 24 | 7.75 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 18 | 5.60 |
17. Lexar Professional 1667X UHS-II – 64 GB
- Max Read Speed: 250 MB/s
- Max Write Speed: 120 MB/s
- Video Rating: V60
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 100 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 38 | 8.13 |
| Lossless Compressed RAW (35.8MB) – 7fps | 25 | 5.50 |
| JPEG Extra Fine (21.3MB) | 37 | 4.90 |
| HEIF 4:2:0 (11MB) | 109 | 2.93 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 22 | 9.51 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 17 | 7.83 |
18. Sony SF-E UHS-II – 64 GB
- Max Read Speed: 270 MB/s
- Max Write Speed: 70 MB/s (64 GB), 120 MB/s (128 GB, 256 GB)
- Video Rating: V60
- Capacities: 64GB, 128GB, 256GB
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 72 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 34 | 11.21 |
| Lossless Compressed RAW (35.8MB) – 7fps | 21 | 7.70 |
| JPEG Extra Fine (21.3MB) | 31 | 6.76 |
| HEIF 4:2:0 (11MB) | 47 | 3.55 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 21 | 13.46 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 15 | 10.08 |
UHS-I Memory Card Buffer Tests
Here are my recommendations for UHS-I memory cards for the A6700 based on my in-camera speed tests using 64GB cards.
Delkin Devices Advantage UHS-I – 64 GB
Bus speed: UHS-I
Video speed class: V30
Capacities: 32GB (SDHC), 64GB, 128GB, 256GB,512GB, 1TB (SDXC)
Read speed (label speed): 100 MB/s
Write speed (label speed): 80 MB/s
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 79 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 35 | 10.38 |
| Lossless Compressed RAW (35.8MB) – 7fps | 21 | 6.53 |
| JPEG Extra Fine (21.3MB) | 32 | 6.28 |
| HEIF 4:2:0 (11MB) | 54 | 3.50 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 22 | 12.63 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 16 | 9.70 |
Kingston Canvas Go! Plus UHS-I – 64 GB
Bus speed: UHS-I
Video speed class: V30
Capacities: 32GB (SDHC), 64GB, 128GB, 256GB, 512GB (SDXC)
Read speed (label speed): 170 MB/s
Write speed (label speed): 90 MB/s
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 79 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 35 | 10.43 |
| Lossless Compressed RAW (35.8MB) – 7fps | 21 | 6.58 |
| JPEG Extra Fine (21.3MB) | 33 | 6.25 |
| HEIF 4:2:0 (11MB) | 54 | 3.52 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 22 | 12.64 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 16 | 9.72 |
SanDisk Extreme Pro UHS-I – 64 GB
Bus speed: UHS-I
Video speed class: V30
Capacities: 32GB (SDHC), 64GB, 128GB, 256GB,512GB, 1TB (SDXC)
Read speed (label speed): 170 MB/s
Write speed (label speed): 90 MB/s
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 73 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 34 | 11.18 |
| Lossless Compressed RAW (35.8MB) – 7fps | 21 | 7.50 |
| JPEG Extra Fine (21.3MB) | 32 | 6.61 |
| HEIF 4:2:0 (11MB) | 53 | 3.52 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 21 | 12.60 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 16 | 10.36 |
Lexar Professional 1066x UHS-I – 64 GB
Bus speed: UHS-I
Video speed class: V30
Capacities: 32GB (SDHC), 64GB, 128GB, 256GB,512GB, 1TB (SDXC)
Read speed (label speed): 160 MB/s
Write speed (label speed): 120 MB/s
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 62 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 33 | 13.35 |
| Lossless Compressed RAW (35.8MB) – 7fps | 19 | 8.41 |
| JPEG Extra Fine (21.3MB) | 29 | 7.99 |
| HEIF 4:2:0 (11MB) | 40 | 4.38 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 21 | 15.91 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 15 | 12.25 |
Transcend 500S UHS-I – 64 GB
Bus speed: UHS-I
Video speed class: V30
Capacities: 8GB, 16GB, 32GB (SDHC), 64GB, 128GB (SDXC)
Read speed (label speed): 95 MB/s
Write speed (label speed): 60 MB/s
In-Camera Speed & Buffer Test Results
When shooting compressed RAW the in-camera write speed is around 56 MB/s. Here are my in-camera speed test results using a 64GB card and shooting in Hi+ drive mode with the electronic shutter. Note this drops from 11fps to 7fps when shooting lossless compressed RAW.
| Image Type | Shots Before Hitting Buffer | Time to Clear Buffer (Seconds) |
|---|---|---|
| Compressed RAW (30.6MB) | 33 | 15.16 |
| Lossless Compressed RAW (35.8MB) – 7fps | 17 | 8.75 |
| JPEG Extra Fine (21.3MB) | 29 | 8.03 |
| HEIF 4:2:0 (11MB) | 37 | 4.25 |
| Compressed RAW (30.6MB) + JPEG Extra Fine (21.3MB) | 21 | 16.38 |
| Lossless Compressed RAW (35.8MB) + JPEG Extra Fine (21.3MB) – 7fps | 15 | 12.18 |
Compatible Memory Cards for Video
If you are shooting video with the A6700 it’s important to ensure that the memory card you are using is fast enough for your chosen video settings.
I’d recommend a V90 card such as the Kingston Canvas React Plus UHS-II card (B&H Photo | Amaozon). This will comfortably cover you for all of the video moves the A6700 supports.
But here’s a closer look at the memory cards that can be used depending on the video format you are shooting in.
For movie recording (When [Proxy Recording] is set to [Off])
When shooting in the following formats and bit rates with proxy recording off the following card types are supported:
| File Format | Maximum recordable bit rate when recording | Supported Memory Card |
|---|---|---|
| XAVC HS 4K | 280Mbps | SDXC V60 or higher |
| XAVC S 4K | 280Mbps | SDXC V60 or higher |
| XAVC S HD | 100Mbps | SDHC/SDXC card (U3 or higher) |
| XAVC S-I 4K | 600Mbps | SDXC V90 or higher |
| XAVC S-I HD | 222Mbps | SDXC V90 or higher |
For movie recording (When [Proxy Recording] is set to [On])
When shooting in the following formats and bit rates with proxy recording on the following card types are supported:
| File Format | Maximum recordable bit rate when recording | Supported Memory Card |
|---|---|---|
| XAVC HS 4K | 200Mbps + 16Mbps* | SDXC card (V60 or higher) |
| XAVC S 4K | 200Mbps + 16Mbps* | SDXC card (V60 or higher) |
| XAVC S HD | 50Mbps + 16Mbps* | SDHC/SDXC card (U3 or higher) |
- Proxy recording is not possible when the recording frame rate is [120p]/[100p]. Depending on the setting for [File Format], the maximum recording bit rate may be lower than when [Proxy Recording] is set to [Off]. Supported memory cards for [File Format] are as follows.
- This camera cannot perform proxy recording when shooting in the XAVC S-I format.
For S&Q Motion shooting (When [Proxy Recording] is set to [Off])
When shooting in S&Q Motion in the following formats and bit rates with proxy recording off the following card types are supported:
| File Format | Maximum recordable bit rate when recording | Supported Memory Card |
|---|---|---|
| XAVC HS 4K | 500Mbps | SDXC V90 or higher |
| XAVC S 4K | 560Mbps | SDXC V90 or higher |
| XAVC S HD | 500Mbps | SDXC V90 or higher |
| XAVC S-I 4K | 600Mbps | SDXC V90 or higher |
| XAVC S-I HD | 445Mbps | SDXC V90 or higher |
- Proxy recording is not possible when the recording frame rate is [120p]/[100p]. Depending on the setting for [File Format], the maximum recording bit rate may be lower than when [Proxy Recording] is set to [Off]. Supported memory cards for [File Format] are as follows.
- This camera cannot perform proxy recording when shooting in the XAVC S-I format.
For S&Q Motion shooting (When [Proxy Recording] is set to [On])
When shooting in S&Q Motion in the following formats and bit rates with proxy recording on the following card types are supported:
| File Format | Maximum recordable bit rate when recording | Supported Memory Card |
|---|---|---|
| XAVC HS 4K | 250Mbps + 16Mbps* | SDXC card (V60 or higher) |
| XAVC S 4K | 280Mbps + 16Mbps* | SDXC card (V60 or higher) |
| XAVC S HD | 125Mbps + 16Mbps* | SDXC card (V60 or higher) |
For time-lapse shooting (When [Proxy Recording] is set to [Off])
When shooting time-lapses in the following formats with proxy recording off the following card types are supported:
| File Format | Supported Memory Card |
|---|---|
| XAVC HS 4K | SDHC/SDXC card (U3 or higher) |
| XAVC S 4K | |
| XAVC S HD | |
| XAVC S-I 4K | SDXC card (V90 or higher) |
| XAVC S-I HD |
For time-lapse shooting (When [Proxy Recording] is set to [On])
When shooting time-lapses in the following formats with proxy recording on the following card types are supported:
| File Format | Supported memory card |
|---|---|
| XAVC HS 4K | SDXC card (V60 or higher) |
| XAVC S 4K | |
| XAVC S HD | SDHC/SDXC card (U3 or higher) |
Whichever card you buy make sure it’s 64GB or higher and labelled SDXC. 32GB and smaller capacity cards are labelled SDHC and the FAT32 file system on these cards will cause your video files to be broken-up into 4GB chunks, meaning more work for you in post production.
Number of Recordable Images
The table below shows the approximate number of images that can be recorded on a memory card formatted with the A6700. The values may vary depending on the shooting conditions and the type of memory card used.
| JPEG Quality/HEIF Quality/ File Format | SD memory card | |
|---|---|---|
| 64GB | 128GB | |
| JPEG Light | 10 000 | 22 000 |
| JPEG Standard | 7 700 | 15 000 |
| JPEG Fine | 5 400 | 10 000 |
| JPEG Extra fine | 2 900 | 5 800 |
| HEIF Light | 15 000 | 30 000 |
| HEIF Standard | 11 000 | 23 000 |
| HEIF Fine | 8 600 | 17 000 |
| HEIF Extra fine | 6 100 | 12 000 |
| RAW & JPEG | 1 200 | 2 500 |
| RAW & HEIF | 1 400 | 2 800 |
| RAW | 1 600 | 3 300 |
| RAW & JPEG (Lossless Compressed RAW) | 1 100 | 2 400 |
| RAW & HEIF (Lossless Compressed RAW) | 1 300 | 2 600 |
| RAW (Lossless Compressed RAW) | 1 500 | 3 000 |
Recordable Movie Times
The table below shows the approximate total recording times using a memory card formatted in the A6700 with proxy recording set to off. The values may vary depending on the shooting conditions and the type of memory card used.
| File Format | Rec Frame Rate | Record Setting | SD Memory Card | |
|---|---|---|---|---|
| 64 GB | 128 GB | |||
| XAVC HS 4K | 60p/50p | 200M | 35 min | 1 h 10 min |
| 150M | 45 min | 1 h 35 min | ||
| 100M | 1 h 5 min | 2 h 10 min | ||
| 75M | 1 h 25 min | 2 h 50 min | ||
| 45M | 2 h 10 min | 4 h 30 min | ||
| XAVC S 4K | 60p/50p | 200M | 35 min | 1 h 10 min |
| 150M | 45 min | 1 h 35 min | ||
| XAVC S HD | 60p/50p | 50M | 2 h | 4 h 10 min |
| 25M | 3 h 20 min | 7 h | ||
| XAVC S-I 4K | 60p | 600M | 10 min | 25 min |
| 50p | 500M | 10 min | 25 min | |
| XAVC S-I HD | 60p | 222M | 30 min | 1 h 5 min |
| 50p | 185M | 30 min | 1 h 5 min | |
Summary
If you shoot a lot of continuous bursts and require the buffer to clear quickly then my recommended memory card for the Sony A6700 is the Kingston Canvas React Plus V90 UHS-II (B&H Photo | Amaozon) card due to its performance and price.
The Kingston Canvas React Plus has always performed well in my memory card tests and is only fractions of a second slower than Sony’s Tough SF-G UHS-II cards that cost twice as much.
If you shoot in harsh environments then it might possibly be worth paying the extra for the Sony Tough card, otherwise please save your money.
If you don’t shoot continuous bursts and don’t mind waiting longer for the files to copy over to your computer, then you only really need a UHS-I card. I’d recommend the Kingston Canvas Go UHS-I cards for their performance and price (B&H Photo | Amazon).
The top 13 UHS-II cards from my tests all allow you to shoot over 1000 JPEG Extra Fine images before hitting the buffer. With the slower UHS-II cards such as the Sony SF-M cards and the UHS-I cards you will hit the buffer much sooner.
Please let me know in the comments below if you have found this guide helpful or if there’s a card you would like me to test.
Table of Contents[Hide][Show]
- Which Memory Cards are Compatible?
- In-Camera Write Speed Comparison
UHS-II Memory Card Buffer Tests+−
- 1. Sony SF-G Tough UHS-II – 64GB
- 2. Kingston Canvas React Plus UHS-II – 64GB
- 3. Hoodman Steel 2000X – 64GB
- 4. PNY X-PRO 90 – 64 GB
- 5. Angelbird AV Pro Mk 2 V90 – 64 GB
- 6. Ritz Gear Video Pro – 64 GB
- 7. Lexar Professional 2000X UHS-II – 64GB
- 8. Transcend 700S UHS-II – 64GB
- 9. Delkin Devices POWER UHS-II – 64GB
- 10. Exascend Catalyst UHS-II – 64 GB
- 11. SanDisk Extreme Pro UHS-II – 64 GB
- 12. ProGrade V90 UHS-II – 64 GB
- 13. Integral Ultima Pro X2 UHS-II – 64GB
- 14. Sony SF-M Tough UHS-II – 64 GB
- 15. Sony SF-M UHS-II – 64 GB
- 16. ProGrade V60 UHS-II – 64 GB
- 17. Lexar Professional 1667X UHS-II – 64 GB
- 18. Sony SF-E UHS-II – 64 GB
- Compatible Memory Cards for Video
- Number of Recordable Images
- Recordable Movie Times
- Summary
- Sony A6700 Guides & Resources
- FAQs
Sony A6700 Guides & Resources
FAQs
The Sony A6700 supports UHS-I and UHS-II SD cards.
The Sony A6700 has only one memory card slot.
No. CFexpress Type-A cards are not supported by the Sony Alpha 6700.
You can find further details on our Sony A6700 Guides & Resources Page and also Sony’s website.
How were the RAW images taken? What sort of scene were they capturing? I’ve not managed to get 1000 shots on any of my UHS-II cards rated for 200mbps+ on lossless compressed RAW.
Hi Barry. Thanks for spotting that. I’ve checked my original figures and it looks like I must have made a stupid copy/paste error for the first 13 UHS-II cards, all of the others are correct. I’ve fixed this now. The most I’ve captured shooting in lossless compressed RAW is 376 with the Sony SF-G Touch UHS-II card when using the electronic shutter. I shoot the front cover of a book for consistency with the file sizes across all of my tests as it provides a slightly more real-world image size for the JPEG images.
I DO NOT recommend the Kingston React Plus v90 cards in the 128GB variant for the a6700. I’ve pulled all my videos recommending these cards. They’re consistently recognized as being slower than even a v60 (so no 120fps) on the a6700 (but oddly work fine in an FX30). I unfortunately had to buy other cards to record at 120fps on the a6700.
Strange. I’ve not had any issues with my Kingston cards and I’ve got both the 64GB and 128GB. They might have updated the firmware with newer cards so I’ll have to grab one to test as my cards are all over than 12 months now. Thanks for letting us know!