Comment by theodorc

21 hours ago

Well, is there any camera that allow you do just that?

I am not sure. I am unfamiliar with the consumer camera segment.

I have heard about some "firmware enhancements" like Magic Lantern or CHDK for Canon which, if I understand correctly, are some kind of extensions that could be loaded by the camera's main firmware on startup and then provide additional functionality.

It is not a custom firmware. But it offers similar functionality.