▁do ▁not ▁have ▁live ▁preview , ▁unlike ▁bridge ▁digit als ). ▁It ▁was ▁launched ▁accompanied ▁by ▁a ▁new ▁small ▁k it ▁l ens , ▁the ▁AF - S ▁D X ▁Zo om - N ik kor ▁ 1 8 – 5 5   mm ▁f / 3 . 5 - 5 . 6 G ▁ED ▁II . ▁The ▁D 4 0 ' s ▁small ▁size ▁and ▁low ▁price ▁made ▁it ▁attract ive ▁to ▁point - and - sh oot ▁photograph ers ▁moving ▁up ▁to ▁their ▁first ▁SL R , ▁however ▁it ▁does ▁contain ▁features ▁and ▁improvements ▁that ▁would ▁appeal ▁to ▁enthus iast s ▁as ▁well . ▁ ▁Despite ▁having ▁a ▁compar atively ▁lower ▁resolution ▁for ▁a ▁D SL R ▁introduced ▁in ▁ 2 0 0 6 , ▁the ▁D 4 0 ▁held ▁some ▁benefits ▁over ▁its ▁newer ▁competition ▁such ▁as ▁the ▁N ikon ▁D 4 0 x , ▁D 6 0 , ▁and ▁Can on ▁Reb els . ▁Because ▁only ▁ 6 ▁meg ap ix els ▁are ▁fit ▁onto ▁the ▁standard ▁N ikon ▁D X ▁format ▁sensor , ▁the ▁sens itivity ▁of ▁each ▁pixel ▁is ▁higher . ▁The ▁default ▁sens itivity ▁on ▁the ▁D 4 0 ▁is ▁ISO ▁ 2 0 0 , ▁and ▁the ▁D 4 0 ▁adds ▁an ▁ISO ▁ 3 2 0 0 ▁speed ▁( list ed ▁as ▁" Hi 1 " ▁in ▁the ▁camera ▁menu ) ▁compared ▁to ▁the ▁N ikon ▁D 5 0 ' s ▁maximum ▁ISO ▁ 1 6 0 0 . ▁The ▁D 4 0 ▁has