Sony DCR-TRV900 - Manual (Page 49)

49
Advanced operations
Shooting with manual adjustment
Using the ND filter
Using the ND filter (corresponds to 16% of the quantity of light), you can record a picture
clearly, preventing the picture from going out of focus under bright conditions.
When ND ON flashes on the LCD screen or in the viewfinder
The ND filter is necessary. Press ND FILTER so that the ND ON indicator appears.
The ND filter is now activated.
When ND OFF flashes on the LCD screen or in the viewfinder
The ND filter is not necessary. Press ND FILTER so that the ND OFF indicator stops
flashing.
The ND filter is now deactivated.
ND FILTER