What are the best SD cards for Sony a7R VI high resolution?

Question

So I finally pulled the trigger on the a7R VI and honestly I am so hyped to take this thing out. I have a trip to the Dolomites coming up in like ten days and I am trying to get my kit sorted before I head out but the problem is these files are freaking massive. I was looking at the specs and since it is 61 megapixels those uncompressed raws are gonna be huge and I am stressed about the write speeds.

I did some digging online and saw a lot of people recommending the Sony Tough G series V90 cards but man they are pricey. Like almost 200 bucks for a 128gb card is wild. My budget is roughly 400 for storage total so I could get two of those but then I saw these ProGrade Digital V60 cards that are way cheaper and have way more capacity for the same price. My logic was that since I am mostly doing landscapes maybe the V60 is fine? But then I started thinking about when I do wildlife and I am blasting away at high speeds... if each file is like 120mb plus then the math just isnt mathing in my head for a V60 card to keep up without the buffer getting totally stuck for like a full minute.

I also read some conflicting stuff on a forum where one guy said the a7R VI actually needs CFexpress Type A to really breathe but then another person said V90 SD cards are basically the same speed for most photo stuff. Im so confused because I dont want to overspend on CFexpress if a good SD card does the trick but I also dont want to be standing there in the cold waiting for the little red light to stop blinking before I can check if my focus was sharp. It is so frustrating trying to figure out if the extra 200 dollars actually buys you performance or if it is just marketing.

Sony Tough V90 (reliable but pricey)

ProGrade V60 (good value but maybe too slow for bursts?)

Kingston Canvas React Plus (cheap but are they actually good?)

Should I just bite the bullet and buy one really fast card and one slow one for backup or is that just asking for trouble? I just need to know what actually works for those high res files without losing my mind or hitting a wall every time I take more than three photos in a row...

CotswoldWalker · Accepted Answer

I absolutely love the Kingston Canvas React Plus V90 128GB! Theyre incredibly reliable and half the price of Sony cards... making them a safe, fantastic budget choice for those huge files!

RobertNen · Answer

Are you shooting uncompressed or lossless raw? In my experience, reliability is everything.

Sony SF-M Series Tough 128GB V60

SanDisk Extreme PRO SDXC UHS-II V90 These handle sustained writes without errors.

DanielFes · Answer

Re: "I absolutely love the Kingston Canvas React Plus..."

I totally get the appeal of the price, but honestly, I have to disagree on sticking with SD for a beast like the a7R VI. I have been shooting with high-res Sony bodies for years and the bottleneck is very real. Those 61MP files are massive, and if you are doing wildlife, even the fastest V90 SD is gonna leave you hanging while the buffer clears. In my experience, the guy you heard was right... the move to CFexpress Type A is the only way to really let this camera breathe. SD technology is basically at its physical limit, whereas a card like the ProGrade Digital CFexpress Type A Gold 160GB or the Lexar Professional CFexpress Type A Gold 160GB will clear your buffer almost instantly. It is a night and day difference when you are trying to check focus between bursts. If it were my money, I would buy one solid 160GB Type A card for your primary slot to handle the action and then maybe a high capacity ProGrade Digital SDXC UHS-II V60 Gold 256GB for the second slot. This setup fits your 400 budget perfectly. You get the speed for the action and plenty of storage for those big landscape files. Tbh, once you see how fast the camera reacts with CFexpress, you wont ever want to go back to SD. Just my two cents after years of trial and error...