As others have said, those are average lenses and you shouldn’t base your purchasing decisions around them.
If you want really small, you have two ways to go:
Wow, this is something I’ve been wondering for a very long time. I’ve researched a few but I’ve never really tried to take the plunge.
If you do try any of these, let me (and us) know what you think!
There are, but because you’re adding another optical system on top of another optical system, it’s never going to be quite as good. Top it off, these adapted monoculars (which is what they are) tend to be on the cheaper end, so there’s going to be a lot more optical defects that’ll really show up in a photo.
Ah, right, those can be iffy, but at least the A7IV I recall has bigger buttons that you can work with most gloves.
That’s one thing I like about Nikons, they’re generally very glove friendly.
Before I went anywhere cold I’d practice a bit first with gloves to see if I could operate the camera as much as possible. I always do a practice run with new gear, be it cameras or gloves.