Samsung NX1000 User Manual page 35

You can purchase optional lenses made exclusively for your NX series
camera. Learn about the functions of each lens and select one that suits
your needs and preferences.
SAMSUNG 20°50 mm F3.5-5.6 ED 11 lens (example)
1
Lens mount index
Zoom lock switch
3 Lens
4 Focus ring (p. 66)
5 i-Function button (p. 48)
6 Zoom ring
Lens contacts
6
5
4