Rarely post on here, but saw this and had to chime in because media matching for the GH6 is a bit of a minefield if you don't look at the actual bitrate requirements. You mentioned wanting to shoot ProRes eventually (which is awesome for doc work, by the way), and that's actually where the math gets really interesting. The camera records Apple ProRes 422 HQ at 5.7K/30p or 4K/60p at a whopping 800 Mbps. If you do the conversion — 800 megabits per second divided by 8 gives you 100 megabytes per second of sustained write speed required. Most V60 cards cap out their actual sustained writes around 60 to 90 MB/s, which is why they choke on ProRes and trigger those dreaded buffer errors. So skip the overpriced V90s for now, but don't just grab any random V60 either — look for something like the Kingston Canvas React Plus SDXC V90 128GB instead. It’s easily one of the most affordable entry points into true V90 performance (usually way cheaper than SanDisk or Sony equivalents) and it clears that 100 MB/s hurdle with room to spare. I've been running a couple of these for my own travel stuff and heavy 4K timelines without a single dropped frame, even during long interviews. You get the peace of mind for the heavy codecs without needing to remortgage your house for a CFexpress setup right out of the gate. Trust me, future-proof yourself a little bit now so you aren't rebuying cards the second you flip that dial to ProRes.

^ This. Also, look, you get what you pay for with memory. Listen, I don't shoot video for a living, but in my shop I use industrial sensors and data loggers every day. Cheap components fail under heavy load. That's just physics. Let's look at two solid options that won't require a second mortgage. First, Lexar Professional 2000x UHS-II V90 128GB. Pros: handles ProRes without choking, fast write speeds up to 260 MB/s, much cheaper than Sony Tough cards. Cons: still pricier than V60, runs a bit warm during long takes. Second, Delkin Devices Power UHS-II V90 128GB. Pros: lifetime warranty with 48-hour replacement, heavy-duty build quality, handles sustained high bitrates reliably. Cons: availability can be spotty online, slightly bulkier plastic casing. Don't buy V60 if you plan on running ProRes 422 HQ. You'll just corrupt your data or drop frames mid-shoot. Buy one good V90 card now instead of buying two cheap ones later. Torque down your gear properly and don't cheap out on the internals.

Agree with the bitrate math above. What exact recording modes do you plan to use most, and what is your hard budget limit for a card?

Media pricing drives me crazy, honestly it's ridiculous how companies gouge us for memory cards. What codecs are you actually planning to shoot on?

Oh man, I am literally going through this exact same panic right now (seriously, my cart has been open on three different tabs for two days). I'm no expert by any means, but I just spent way too many hours down the media rabbit hole last week trying to figure out what won't break the bank. It's so overwhelming when you just dropped all your cash on the body and glass — wait, no, I mean the sudden realization that the memory card costs almost as much as a decent vintage lens is just brutal. Anyway, seeing everyone argue about V60 vs V90 makes me want to just shoot everything on my phone (kidding... mostly). Good luck with the doc stuff though!

Building on the earlier suggestion, everyone pushes expensive brand-name cards, but honestly most marketing is just hype. When I bought my body, I ignored the influencer advice and tested budget media myself.

• Real owners know sustained write speeds matter more than label ratings.
• V60 handles standard codecs just fine despite what the forums claim.
• Save your money for glass instead of overpriced plastic.

So funny you ask this — last summer I took my GH6 on a documentary shoot and totally panicked about media the night before. I bought an overpriced SanDisk Extreme PRO SDXC UHS-II 128GB and honestly? Regretted spending that much instantly. You dont need it for everyday stuff. TL;DR: Grab a ProGrade Digital V60 128GB UHS-II card for around $60 instead. Story time: I was shooting standard 4K 60p all week on that V60 and it never dropped a single frame. Save the cash for audio gear or food on set... V90 is a total waste unless you are doing max ProRes specs.

> Agree with the bitrate math above. What exact recording modes do you plan to use most, and what is your hard budget limit for a card? I skipped the V90 cards entirely when I got my body last year and bought a single budget V60 for standard 4K. It dropped frames instantly on ProRes 422 HQ, so I had to downgrade codecs until I could afford a faster card. Don't buy cheap media if you plan on using heavy bitrates.

Look, stop guessing at memory specs. I run diagnostic gear every day that pulls way more data than a camera, and buffer overruns always come down to write speeds. If you cheap out on V60 cards for ProRes, you will drop frames. Listen. Buy ProGrade Digital V90 128GB UHS-II Cobalt cards.

• Sustained write speed: 250 MB/s minimum.
• Thermal throttling protection built in.
• Metal housing handles vibration better than plastic. Don't buy CFexpress yet if the reader cost kills your budget. Stick to UHS-II V90 so you don't corrupt your documentary footage.

I've owned multiple versions of Panasonic bodies and been through three generations of these high-bitrate media headaches. Tried cheap cards six years ago and footage corruption was garbage, though things may have changed with newer firmware. For the GH6, you do not need V90 cards for everything, but you cannot cheap out completely if you plan to shoot ProRes. Here is the reality of the slot setup. The GH6 has one CFexpress Type B slot and one SD UHS-II slot. If you want to shoot ProRes 422 HQ at 5.7K or high frame rate 4K 120p, SD cards simply cannot sustain the write speeds required. You have to use CFexpress for those specific maximum settings. For standard internal recording like 4K 60p 4:2:2 10-bit in standard codecs, a V60 card is completely adequate. I run ProGrade Digital UHS-II V60 256GB cards for regular doc work without dropped frames. They handle standard bitrates fine and cost significantly less than V90 equivalents. Save your money on the SD side, skip the V90 tax, and just buy one decent CFexpress card later when your budget recovers and you actually need to unlock the absolute heaviest codecs.

Did this last week, worked perfectly

Great info, saved!