Nikon D750 User Manual page 204

To use Active D-Lighting:
1
Select Active D-Lighting.
Highlight Active D-Lighting in the
photo shooting menu and press 2.
2
Choose an option.
Highlight the desired option and
press J. If Y Auto is selected, the
camera will automatically adjust
Active D-Lighting according to
shooting conditions (in mode M,
however, Y Auto is equivalent to
Q Normal).
D
Active D-Lighting
Noise (randomly-spaced bright pixels, fog, or lines) may appear in
photographs taken with Active D-Lighting. With some subjects, you
may notice uneven shading, shadows around bright objects, or halos
around dark objects. Active D-Lighting can not be used at ISO
sensitivities of Hi 0.3 or above.
A
See Also
When ADL bracketing is selected for Custom Setting e6 (Auto
bracketing set, 0 353), the camera varies Active D-Lighting over a
series of shots (0 212). For information on using the Fn button and
main command dial to select an Active D-Lighting option, see page
360.
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