21/02/2026 12:18 am
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I just got the Sony a7R V and those 61MP RAW files are massive! I’m worried about the buffer slowing me down during high-res bursts. Are V90 SD cards like the Sony Tough series fast enough, or should I just invest in CFexpress Type A? What cards do you recommend for reliable, high-speed performance?
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12
21/02/2026 12:33 am
Seconding the recommendation above. Honestly, if ur doing heavy bursts, V90 cards feel pretty sluggish on the a7R V... Ive used them for years and the buffer lag is real. I would suggest: 1. Lexar Professional CFexpress Type A Card GOLD Series 320GB
2. ProGrade Digital 160GB CFexpress Type A Memory Card Basically, CFexpress is a MUST for those 61MP files if u hate waiting around!!
11
21/02/2026 1:23 am
Huge files CHOKE V90s... Pro tip: check *Alpha Shooters* for Delkin Devices 160GB BLACK CFexpress Type A Memory Card tests; it's way cheaper than those brands mentioned before, right?
4
21/02/2026 12:19 am
In my experience, I've tried many cards and seen buffers freeze up at the worst moments, which is tbh scary. For your situation, I would suggest: - Sony 160GB CFexpress Type A TOUGH Memory Card: Fastest and most reliable for 61MP bursts.
- Sony TOUGH 128GB UHS-II V90 SDXC Memory Card: Cheaper, but slower clearing might fail you. Lesson learned: dont risk it. The CFexpress is realy the safer bet for high-res.
3
22/02/2026 5:32 am
Commenting to find later
2
27/02/2026 4:59 am
Saved for later, ty!
2
03/03/2026 7:58 pm
👆 this
