26/02/2026 7:16 pm
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Hey everyone! I finally upgraded to the Sony a1 for my wildlife trips, but I'm really struggling with the buffer. Shooting at 30fps is incredible, but my current V60 cards just can't keep up and I'm constantly missing shots while waiting for the camera to clear.
I'm trying to decide between a few options:
- Sony Tough CFexpress Type A
- Lexar Professional Gold series
- High-end V90 SD cards
The CFexpress cards are pretty pricey, so I want to make sure they're worth the investment before I drop all that cash. Does anyone have experience with which specific cards handle those high-speed bursts best without lagging?
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26/02/2026 8:18 pm
I'm pretty picky about reliability because I hate the idea of a card failing during a big trip. I'd go with the Sony TOUGH 160GB CFexpress Type A or the ProGrade Digital 160GB CFexpress Type A Cobalt series. They're built for heavy use and don't overheat as easily as some cheaper ones. It's expensive, but honestly, peace of mind is worth the extra cash.
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26/02/2026 7:48 pm
Jumping in here because I went through this exact headache when the a1 first launched. I tried sticking with my Kingston Canvas React Plus 256GB V90 SDXC cards thinking the 300MB/s would be enough, but the math just doesnt work for 50MP files at 30fps. Even though V90 sounds fast, its still using the UHS-II bus which hits a hard ceiling pretty quickly. When I finally switched to the Sony TOUGH 160GB CFexpress Type A, the difference was night and day. Were talking about a jump from roughly 250MB/s real-world write speeds to over 700MB/s. It basically turns a 30-second wait into a 5-second one. If youre looking for a slightly better value, I've had great luck with the ProGrade Digital 160GB CFexpress Type A Gold series too. They use the same PCIe Gen3 interface and honestly, the thermal management is way better than standard SD for those heavy wildlife bursts.
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26/02/2026 7:17 pm
The short answer is yes, the upgrade to CFexpress is non-negotiable if you want to actually use that 30fps. SD cards just dont have the write speed for the a1s data rate. Just to narrow it down tho, are you shooting uncompressed raw or one of the compressed formats? Also, what kind of burst lengths are we talking about here?
