Pay attention to @Jman13 and his suggestion of the Z50II. Since you are happy with the Z7II for both the MF lenses and the 24-120/4S that only leaves the 200-500 which I presume would benefit from the higher pixel density APS-C sensor compared with the Z5II. Might be a really good choice to keep the Z7II and add the Z50II if you can.
However, do some research on the 200-500 on any of the most recent Z bodies. I don't expect it will be up to the 180-600 as far as AF goes, but presumably there are a lot of Z users out there still using the 200-500 on things like the Z8/Z9/Z6III who might have reported on their AF experience. If they are complaining then I'm not sure the Z5II or Z50II will necessarily help you and maybe the 180-600 would be the choice.
Apologies I don't have direct experience with those two lenses to report myself!
Jul 19, 2025 at 12:26 PM
Previous versions of kwalsh's message #16854588 « Replacing a Z7II with a Z5II - mistake? »
