I'll definitely try that out on the hummingbirds in my yard, who are almost always spooked by the sound of the shutter. One other thing I discovered was aps-c mode, how awesome is that? It drops you down to 18 MP but still worth it for the crop factor if/when needed. Overall, the Canon cannot compare.
As for lenses, unless I can find a really compelling reason to move to native lenses I'll be sticking with my L glass, the fact that I can continue to use them is the main reason I made this switch. The images, usability, and quality are all top notch but if/when I decide to add I'll start looking at their lineup. I also see a lot of other manufacturers are making lenses for their E mount as well.
I've written about this before and those who are familiar with the story don't have to bother reading it.....
For me, lenses were a key factor in moving forward from DSLR to mirrorless. I had a number of older Nikon lenses plus some more recent, of course, but during the hiatus I took from photography altogether lots of newer Nikon DSLR bodies and lenses and such arrived on the scene which I did not use. When around two years ago Nikon announced its mirrorless Z series, in the promo material they assured Nikon owners that they would be able to use all or most of their lenses with the FTZ adapter, no problem.
Yeah, well, as I soon found out. that was a bit exaggerated, as there WAS a problem, a big one, at least for me and probably for others as well. When reading the fine print and actual compatibility charts that eventually were issued, it became very clear to me that some of my lenses would not work at all with an FTZ adapter and a Z camera body or they would work, but would be usable only as manual focus lenses rather than autofocus lenses. I was more than disconcerted by this.
Ah, but no problem, I'd just buy the native lenses that I wanted and that would be that. This was the second point at which I was quickly stymied since the lenses that I most particularly wanted were not even in the "road map" issued by Nikon back then. Ehhhhhh......
Having reached the sad conclusion that after many, many years Nikon was no longer going to be meeting my photographic needs I made the decision that since I was ready to go mirrorless that it would be another brand altogether, one which already offered what I needed and wanted, and that is when I made the total switch from Nikon to Sony. It has been nearly two years now -- close to the end of this month -- and I do not regret it at all. I've loved my A7R IV and am even more in love with the amazing A1, and the lenses that I have gradually purchased and used as need (or desire) indicated, have been absolutely stellar. I know many people are quite happy with their Nikon Z camera bodies, the FTZ adapter and either the F-mount lenses they already had or new native lenses that Nikon is gradually putting out, and that's great for them. Whatever works for each photographer is what matters, right?
In addition to Sony native lenses I also have a couple of Voigtlander lenses, which are made in only mounts for Leica and Sony. They're manual focus lenses but since I usually do use manual focus for macro anyway and the Sony bodies provide focus peaking as well as zoom magnification assist and other aids, manual focus isn't that much of a problem. However, I would not use manual focus on shooting most other lenses or kinds of photography, as my aging eyes aren't that great!
Have to admit, that in the two years I've had the A7R IV I have never tried APS-C mode, nor have I in the A1. Just not my thing..... Usually I shoot what I want in FF mode and then if I feel the need to crop, just do that and it works out fine in the end.