Need a recommendation from a professional. can't decide between the EOS 7D Mark II or the EOS 90D. I currently own the EOS 7D and would like to replace it. thank you.
Difficult question - and not a pro either, but take an extreme amount of shots of retrievers at work, in the field and in all weather conditions with an EF 28-300mm L IS USM.
The 7D Mark II is still an extremely robust camera (hence heavier and fixed LCD) with top autofocus, excellent metering, and decent for shorter JPEG and RAW series. The 90D scores with the sensor in terms of resolution and probably with a faster processor that has to process much more image data.
In terms of video, the 7D Mark II "only" does FullHD, but that is at 60p, while the 90D can do 4k at up to 30p. Those who still have many fast CF cards can continue to use them with the MkII, here the second slot is "only" UHS I, while the 90D has a UHS II slot.
In my opinion, the viewfinder of the MkII is superior to the 90D mot by 0.95x with its 1.0x image - but both show the entire image.
The 90D seems to be a bit tougher with the same LP-E6N battery and takes twice as many shots. What I miss on my MkII is the Wi-Fi support - the 90D has that.
For my part - I wouldn't want to miss the MkII and am saving up for an EOS R (mirrorless, quiet) or whatever is current in that area in a year or two.