AlanU wrote in post #18707464
Kim, I hope I'm not negative indicating that experimentation should be done with more modern tech/sensors. He has a bag of Canon lenses that would be fully compatible with a different Canon FF! He says he cannot get away with ISO 6400 or 12800 assuming he is talking about his 7D. He can easily obtain amazing images with the lenses he owns. He owns two Camera systems and you do not have an option. If he genuinely wanted to improve IQ with his Canon gear it's a matter of changing the Canon body. Making a judgement call on a system without renting/testing more modern tech is not a fair assessment.
Kim, tell me your thoughts on the X-t3.
All said with tongue in cheek Alan, but by all means be negative or not, it's a forum. But it not just this post as was my point, it's most posts I see. Just an observation with a friendly dig attached so, do you work for Canon? 
'He' mentioned that Fuji is good at high ISO - relative to the OP's question. I don't believe his question was should I spend thousands more on a big camera with an old outdated sensor like the 5D4 for a possible one stop cleaner ISO setting that I might rarely need or buy a $1500 camera with the latest sensor with great AF that has 100% coverage. But yes I'd say everyone on here will say [has said] go rent before you buy as that makes sense. As the two+ year old sensor in the 5D4 is out of date by now (a la your GFX argument).
On a side note (again) I have other cameras that I shoot with, some small (Fujis) some a lot bigger and even some that shoot raw video so I do have plenty of options, I just happen to enjoy shooting with Fuji for most things as it's enjoyable to shoot with and very capable with that as I think I have demonstrated with lots of images.
