Canon MV830 Instruction Manual page 52

Infinity Focus
Use this function when you wish to focus on faraway subjects such as mountains or
fireworks.
Press the FOCUS button more than 2 seconds after step 2 in Adjusting
the Focus Manually.
"MF " appears.
When you operate the zoom or turn the SET dial, "
camcorder changes to manual focus.
52
" disappears and the