Least expensive reliable SD cards for sustained 6k HEVC on S1

[HockeyFan12]

Any recommendations? Do I need V90?

[newfoundmass]

My friend uses V90 ProGrade 256gb cards on his S1H. They're the most affordable trustworthy option and we've never had any problems with them.

He doesn't have any V60 cards to test but when I see him in a few weeks I can bring some of my SanDisk Extreme Pro cards to try it out, but I imagine you'll get a better answer by then! He did say though that the reason he went with the V90 cards is to make sure he didn't run into any problems. 

[HockeyFan12]

Thanks! On the S1H for 400Mbit ALL-I I think V90 is basically a necessity. But I think the 6K HEVC is half the bitrate so I was hoping to cheap out a bit since I only have an S1...

[ac6000cw]

If it helps you decide, I use V30, 90MB/s write, 160MB/s read speed rated SanDisk Extreme 128 GB micro-SDXC cards (in SD adaptors) in my Lumix G9 for 150Mbit 4k50p with no problems. Recently I've paid around £23 for these in the UK. There are also equivalent standard SD card size versions.

The (theoretically) better 'Extreme Pro' versions of these (similar performance) can sometimes be bought for not much more if you shop around.

V30 rating = 30 Mbyte/s = 240 Mbit/s sustained sequential write speeds, so 200 Mbit/s 6K HEVC is theoretically OK. Personally I've always found the higher grade SanDisk cards to perform well i.e. read and write speeds are at least as good as the spec.

[amweber21]

You absolutely do not need V90 cards for 6K. I have used my cheap Lexar 95MB/s cards with it which are V30, but you might as well get a V60 card to take advantage of UHS-II interface and are still far cheaper than V90 cards.

[newfoundmass]

17 hours ago, HockeyFan12 said:

Thanks! On the S1H for 400Mbit ALL-I I think V90 is basically a necessity. But I think the 6K HEVC is half the bitrate so I was hoping to cheap out a bit since I only have an S1...

Doh, I'm sorry then! 

[TomTheDP]

I use V30 as well with no problems in 4k 60p, 4k 24p, and 6k hevc. 

[HockeyFan12]

3 hours ago, TomTheDP said:

I use V30 as well with no problems in 4k 60p, 4k 24p, and 6k hevc. 

Thanks, what third party batteries do you recommend btw?

[TomTheDP]

On 8/12/2021 at 7:42 PM, HockeyFan12 said:

Thanks, what third party batteries do you recommend btw?

I've been using BM premium batteries for a while now on the S1 with no issues. The panasonic batteries last a little longer but the third party ones aren't bad. I just got a bunch of Kastar batteries but haven't used them yet to comment on them.