I think ang D4 karon is using the 3D colour matrix III, pangutana rah nako if naa buh gud difference from the permero to the present? base sa ako gi ukay2x sa net mao2x ra man gud ilang sulti.. high accuracy, high sensitivity.. sorry medjo techy ang question
and also mo deprensa buh na ang 420(entry level?), 1005(d3, d3x, d3s, d700 and ect), 2016 (d7000) and 91k(d800/E & D4)