Nikon D6 Reference Manual page 1146

Specifications
Nikon D6 Digital Camera
Type
Type
Lens mount
Effective
angle of view
Effective pixels
Effective
pixels
Image sensor
Type
Total pixels
Dust-
reduction
system
1094 Specifications
Single-lens reflex digital camera
Nikon F mount (with AF coupling and AF contacts)
Nikon FX format
20.8 million
35.9 × 23.9 mm CMOS sensor
21.33 million
Image sensor cleaning, Image Dust Off reference data
(Capture NX-D software required)