link dan panduannya :

http://nikonimglib.com/dcdata/#os-windows
http://nikonimglib.com/dcdata/manual/En/lensprofile_win_en_ABF.html

Distortion control data are used to correct barrel and pincushion distortion during shooting and editing. They can be loaded into cameras that support distortion control.

==> Perlu gak ya update ini ?