Live view is set for 100ms exposure, camera for 10s exposure. So you're looking at a spectrum live, but losses are too noisy to examine, so you want to take a snapshot.
Expected behavior is click picture button, wait 10 s, get a spectrum in another window and live view restarts.
Your choice is select image from drop down, wait 10s, get a live 10s exposure, click cntrl-S get it in another window, Select drop-down live, wait 10s and you're back to a live view.
I never use the drop down as it doesn't provide functionality, unlike a button which would.
Useful for EELS
ND 2021-11-11:
Live view is set for 100ms exposure, camera for 10s exposure. So you're looking at a spectrum live, but losses are too noisy to examine, so you want to take a snapshot.
Expected behavior is click picture button, wait 10 s, get a spectrum in another window and live view restarts.
Your choice is select image from drop down, wait 10s, get a live 10s exposure, click cntrl-S get it in another window, Select drop-down live, wait 10s and you're back to a live view.
I never use the drop down as it doesn't provide functionality, unlike a button which would.