Man I wish I found this thread sooner. Would have saved me so much hassle.

So, tbh, while the rumors are cool, I’m mostly looking at the reliability side of things. If Canon really goes with stacked sensors for the R6 III and R7 II, my biggest concern is the thermal management. We've seen throttling issues before, and high-speed readout chips generate a ton of internal heat in these smaller mirrorless bodies. I've been shooting with Canon for a long time, and honestly, a camera is only as good as its uptime—idk if I'd trust a first-gen stacked sensor in a mid-range body without seeing some serious cooling specs first. But anyway, what are you actually planning to shoot with these? Like, are you looking for a body that can survive 4K60 for hours without a break, or is your priority more about the mechanical shutter durability and weather sealing for rugged outdoor work? Knowing if you need that fail-proof build versus just raw speed would definitely change how we look at those leaked specs.

tbh i used to spend way too much time obsessing over spec sheets comparing my old Nikon Z6 II to the canon equivalents. it’s a total rabbit hole. if you’re looking for the actual nitty gritty on the 2025 roadmap, you should really just check out canon rumors or search youtube for 2025 canon leak videos. there are a few channels that do deep dives on sensor architecture and patent filings that basically explain everything way better than we can here... i remember when i was trying to decide if the r6 line was worth the jump from my Sony Alpha 7 III, and honestly, just watching those spec-comparison videos saved me a ton of headache. the 2025 stuff is still kinda speculative anyway, so those dedicated leak sites are your best bet for the latest data.

Regarding what #5 said about "tbh i used to spend way too much..." - i actually think following those leak cycles is just a recipe for disappointment. Unfortunately, the focus is always on specs rather than how these things are built to last, which is why i prefer a more hands-on approach. It reminds me of the time i tried to do a deep-clean and DIY repair on my old Canon EOS 5D Mark IV after a dusty shoot in the desert.

• the sensor swab left a tiny streak i couldnt get off
• i accidentally stripped one of the chassis screws
• the local repair shop told me the part was backordered for months It turned into this massive ordeal where i was without a primary body for nearly the whole summer. Tbh it was such a headache that it really soured my view on how complicated these modern mirrorless systems are getting internally compared to the older mechanical stuff. I spent more time looking at exploded view diagrams than actually shooting...

Where is EOS R6 Mark III?