Hey, congrats on the R6 II! It's an absolute beast of a camera. Moving from a DSLR is a big jump, but you're gonna love that eye-tracking AF. Here's what I recommend for your new setup based on my testing: - **Batteries**: Honestly, stay with the Canon LP-E6NH Lithium-Ion Battery. These mirrorless bodies are thirsty. Third-party batteries often won't support the maximum burst rates (that sweet 40fps), and the R6 II can be reallyyy picky about communication chips. Don't risk a lock-up during a shoot just to save a few bucks.
- **Adapter**: I'd stick to the basic Canon Mount Adapter EF-EOS R. I have the control ring version, and tbh, I barely use the extra dial. If you're used to the DSLR layout, it’s probably not worth the extra $100.
- **Storage**: V90 is total overkill for the R6 II bitrates. A high-quality SanDisk 128GB Extreme PRO SDXC UHS-II V60 is the sweet spot. It handles 4K 60p and high-speed bursts perfectly without the V90 tax.
- **Protection**: Grab a ULBTER R6 Mark II Screen Protector Tempered Glass. That articulating screen is basically a scratch magnet, so it's a cheap way to keep the resale value up. Good luck with the new kit! Cheers.

> Should I stick to the official LP-E6NH batteries... do I genuinely need V90 SD cards? Hmm, I've had a different experience since I'm also still figuring out the RF system. When I first got my R6 II, I basically blew my budget on top-tier specs, but I quickly realized I didn't need it all. Respectfully, I'd consider another option for SD cards. While V90 is the 'standard,' a ProGrade Digital SDXC UHS-II Video Speed Class 60 (V60) 128GB has been plenty for my 4K shooting and it’s way cheaper. I know the adapter was mentioned, but the Canon Mount Adapter EF-EOS R with Drop-In Variable ND Filter A is a better investment than the control ring version imo. Also, for batteries, I've had luck with the SmallRig LP-E6NH USB-C Rechargeable Camera Battery without errors! Lesson learned: dont feel pressured to buy the priciest gear just cuz it's mirrorless. It's about what works for you, right?

Coming back to this from a more technical data angle - I'm gonna have to respectfully disagree with the focus on just buying a stack of batteries. > Should I stick to the official LP-E6NH batteries, or are there reliable third-party options? Honestly, instead of bulk-buying individual cells, look into a USB-C Power Delivery (PD) solution. From a market research perspective, the Anker 737 Power Bank (PowerCore 24K) is the gold standard for mirrorless setups right now. It supports the 30W+ output required to actually power the R6 II while you're shooting, which is a total game-changer for long 4K video sessions or timelapses where even 3 or 4 LP-E6NHs would die. Regarding storage, while V60 is 'fine', the write-speed floor is risky for the 40fps electronic shutter. If you want the best price-to-performance ratio, the Kingston Canvas React Plus V90 SD Card consistently outperforms more expensive brands in sustained write tests and usually comes with a UHS-II reader. Also, if youre coming from a DSLR, the sensor is way more exposed now. Pick up a Giottos AA1900 Rocket Air Blower - basically an industry standard for a reason. Youll need it way more than you think!!!

Building on the earlier suggestion, I actually gotta respectfully disagree with the idea that the basic adapter is enough. I spent a year using the standard Canon Mount Adapter EF-EOS R and it worked, sure, but it felt like I was just making do. I eventually swapped it for the Canon Control Ring Mount Adapter EF-EOS R and honestly, I wish I had done it sooner. I remember shooting a fast-paced event last month where the light kept changing every time I turned around. Having that extra dial on my old EF 50mm to toggle ISO felt like the lens was natively made for the R6 II. It bridges the gap between old and new tech perfectly. On the other hand, if you're doing any video or outdoor work, the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter is a game changer. I used it on a trip to the coast recently and not having to mess with different filter thread sizes for every lens was a lifesaver.

• Control Ring: Best for tactile feel and speed.
• Drop-In ND: Best for video and landscape guys who hate swapping filters. TL;DR: Dont settle for the basic adapter. The Control Ring version makes your old EF glass feel brand new, while the Drop-In ND version is the ultimate hack for video shooters.

Ok so, congrats on the R6 II!! It's such a killer camera and you're gonna love the speed. Respectfully, I'd consider another option when it comes to the "official" gear list because those prices add up highkey fast. In my experience, you can definitely save some serious cash without hurting your performance if you know where to look. * **Batteries**: I know the previous guys mentioned sticking to the Canon LP-E6NH Lithium-Ion Battery, and yeah, it's the safest bet, but man they're pricey. I've been using the SmallRig LP-E6NH USB-C Rechargeable Camera Battery 2400mAh lately and it's basically a game changer. It has a USB-C port built right into the battery so you can charge it with a phone cable. No extra bulky charger needed! I haven't had any error codes yet, and it's way cheaper. * **The Adapter**: Honestly, the control ring is nice, but idk if it's worth the huge markup from Canon. If you want that extra dial for cheap, check out the Viltrox EF-R2 Canon EF to RF Lens Mount Adapter with Control Ring. It does the exact same thing as the Canon version for way less. In my experience, the autofocus speed doesn't change at all between brands since it's just a pass-through anyway. * **Storage**: Please dont feel like you need V90 cards!! Seriously, they're sooo expensive. Since V60 was already mentioned, I'll say that for everyday shooting and standard 4K, a high-quality UHS-I card like the SanDisk 256GB Extreme PRO SDXC UHS-I Card 200MB/s V30 is actually enough for most people. I use them for long shoots and they never miss a beat unless you're doing heavy 4K 60p video. So basically, save that extra $200 you'd spend on "official" accessories and put it toward a lens like the Canon RF 50mm f/1.8 STM. It's such a tiny, fun lens to have in your bag. Anyway, i hope that helps you get started without breaking the bank. Good luck with the new setup! 👍