Nikon D330018-55VR User Manual (en)

The Shooting Menu: Shooting Options
Maximum Sensitivity/Minimum Shutter Speed
When auto ISO sensitivity control is enabled, 
the ISO sensitivity and shutter speed 
graphics in the information display show the 
maximum sensitivity and minimum shutter 
Auto ISO Sensitivity Control
Noise (randomly-spaced bright pixels, fog, or lines) is more likely at 
higher sensitivities. Use the Noise Reduction option in the shooting 
menu to reduce noise (
0 226). Note that ISO sensitivity may be raised 
automatically when auto ISO sensitivity control is used in combination 
with slow sync flash modes (available with the built-in flash and the 
optional flash units listed on page 299), possibly preventing the 
camera from selecting slow shutter speeds. Auto ISO sensitivity 
control is available only in i-TTL flash control mode (
other modes, the value selected for ISO sensitivity will be used for 
pictures taken with the built-in flash or optional flash units.
Maximum sensitivity
Minimum shutter speed