Sony Handycam DCR-SX21E Operating Manual page 15

 Recording in a dimly-lit place
You can turn on the LED VIDEO LIGHT by pressing LIGHT.
 Zooming
You can magnify images up to 67 times the original size with the power zoom lever.
 Displaying the icons and indicators again
You can display the icons and indicators by pressing the multi-selector if they are not shown.
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