10/04/2026 11:30 am
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RF Mount Camera & Lens Forum
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So I finally bit the bullet and pulled the trigger on the R5 Mark II because my old R5 was overheating way too much during summer weddings here in Oregon. I've got a couple of big projects coming up in October and I really need to get my kit sorted before then. I've been looking into those new CFexpress Type B cards and man they are pricey. I saw people recommending the ProGrade Cobalt ones for the high bitrates but then I read some threads saying the Lexar Gold series works just as well for half the price so now I'm just staring at my cart not knowing what to do. Also I'm really torn on that cooling grip. Canon says it's great for the 8K stuff but I mostly shoot 4K 60 or 120 and I'm wondering if the internal fan is actually enough on its own? I have about 800 bucks left in my budget after the body purchase so I need to be smart about what I grab first. I also heard something about the new LP-E6P batteries being the only ones that unlock the pre-continuous shooting and some of the video modes... is that true or can I get away with my old batteries for a bit? What are you guys actually using on yours to make it a workhorse for video?
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10/04/2026 11:31 am
I was quite disappointed with the performance of the Lexar Professional CFexpress Type B Gold Series 512GB cards during my last wedding. They simply couldnt keep up with the sustained write speeds needed for 4K 120p, leading to several dropped frames and recording stops. I had to switch back to the ProGrade Digital CFexpress Type B Cobalt 650GB, which is much more reliable despite the high price tag. A few specific observations from my field tests:
- You cannot rely on your old LP-E6NH batteries for this body. The camera specifically disables pre-continuous shooting and several high-bitrate video modes unless you use the Canon LP-E6P Rechargeable Li-Ion Battery Pack.
- The internal fan is unfortunately insufficient for heavy video work. I experienced thermal warnings after 40 minutes of 4K 60p, so the Canon CF-R20EP Cooling Grip is basically a necessary purchase if you want to avoid overheating entirely. Its frustrating to spend more, but the base body cooling just isnt enough for professional use.
