▁the ▁light ▁imp ing ing ▁on ▁each ▁sensor ▁element . ▁Although ▁the ▁F ove on ▁X 3 ▁has ▁a ▁greater ▁light - g ather ing ▁ability , ▁the ▁individual ▁layers ▁do ▁not ▁respond ▁as ▁sharp ly ▁to ▁the ▁respective ▁colors . ▁Thus ▁color - ind ic ating ▁information ▁in ▁the ▁sensor ' s ▁raw ▁data ▁requires ▁" ag gress ive " ▁matrix ▁( ess entially , ▁removal ▁of ▁common - mode ▁signals ) ▁to ▁produce ▁color ▁data ▁in ▁a ▁standard ▁color ▁space , ▁which ▁can ▁increase ▁color ▁noise ▁in ▁low - light ▁situations . ▁ ▁Sp atial ▁resolution ▁According ▁to ▁S igma ▁Corporation , ▁" there ▁has ▁been ▁some ▁controvers y ▁in ▁how ▁to ▁specify ▁the ▁number ▁of ▁pixels ▁in ▁F ove on ▁sens ors ." ▁The ▁argument ▁has ▁been ▁over ▁whether ▁sell ers ▁should ▁count ▁the ▁number ▁of ▁photos ites ▁or ▁the ▁total ▁number ▁of ▁phot odi odes , ▁as ▁a ▁meg ap ixel ▁count , ▁and ▁whether ▁either ▁of ▁those ▁should ▁be ▁compared ▁with ▁the ▁number ▁of ▁phot odi odes ▁in ▁a ▁Bayer ▁filter ▁sensor ▁or ▁camera ▁as ▁a ▁measure ▁of ▁resolution . ▁ ▁For ▁example , ▁the ▁dimensions ▁of ▁the ▁photos ite ▁array ▁in ▁the ▁sensor ▁in ▁the ▁S igma ▁SD 1 0 ▁camera ▁are ▁ 2 2 6 8 ▁× ▁ 1 5 1 2 , ▁and ▁the ▁camera ▁produces ▁a ▁native ▁file ▁size ▁of ▁those ▁dimensions ▁( times ▁three ▁color ▁layers ). ▁This ▁amounts ▁to ▁approximately ▁ 3 . 4 ▁million ▁three - color ▁pixels . ▁However ,