yes.. Canon's word: sensor in R6 is a better sensor from a high ISO perspective than in R5.. mentioned multiple time in Canon product presentation videos, by Canon EOLs, product reviews. nothing unexpected. IDX3 sensor is excellent in low light. So this is one of the R6 features: low light performance.
R5 high ISO performance (3200 - 6400 and up) will NOT be better than R6 or 1Dx3...
let's focus on your original statement though: you expected R5 to perform at high ISO by at least.. at least 2 stops better...
myself and Privatebydesign addressed you on that number of time. An you keep coming back with more "information" to support your point.
let's agree / accept that your initial statement is false and move on from here.
P.S. so here is you post.. let see what you said back then:
Canon must have achieved current f/5.6-level IQ at f/11. So that's the amount of light/improvement we're talking about here – at minimum, IMO.
There are still surprises in store for the Canon EOS R5 announcement [CR2]
Imagine a 20 minute exposure. That's 5 degrees of image shift at worst (at the celestial equator, less nearer the poles). With a wide or normal lens that is very little cropping to essentially "stack" a long sequence of exposures. For telephoto, it means that a tracking mount is not alignment...www.canonrumors.com
and then here again. much of the muchness:
I hope I'm right by saying 2 stops improvement (when sized down to R resolution for equivalency as you suggested), but even one stop would be nice.
First downloadable RAW R5 and R6 files
Without raising my head above the parapet too much, I can safely say the R5 by far beats my R in performance. this I feel is due to 1) noise handling, 2) focus 3)IBIS. These are all key things really, taking these examples and other videos I have now seen the ability to handhold 800mm f/11 at...www.canonrumors.com
Let’s see the samples compared to R on the DPR tool. I was already wrong about dual gain tech coming to the R5, so what’s one more time to be wrong. Oh, I also voted that the “one more feature for photographers” rumor might be pixel shift high res mode. Being wrong on a rumors site about rumors isn’t something I get too worked up about.
Still find it strange how several of you discount the future possibility of ISO gains. Seems like a rather narrow-minded vision of the future and possible advances in sensor design and AI-based imaging. Reminds me of people saying humans would never fly. The science behind the high ISO performance being limited as explained here sounded more like someone repeating what they read once rather than an deep understanding of the physics behind it. If that’s not the case, and one of you have a PhD in this field and wrote some papers on it, I‘m all ears. You guys talk about improving high ISO of the current sensors like it’s as unlikely as time travel.
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