yobeju

Hi everybody, when i shoot (with my bmcc), every ISO settings (form 200 to 1600) give a noise: Exemple here with Canon 50mm 1.8 lens: f/2.8 ISO 200 Blackmagic Cinema Camera_200.dng - 4.8 MB f/2.8 ISO 400 Blackmagic Cinema Camera_400.dng - 4.8 MB f/2.8 ISO 800 Blackmagic Cinema Camera_800.dng - 4.8 MB f/2.8 ISO 1600 Blackmagic Cinema Camera_1600.dng - 4.8 MB The noise is on the grey (of iMac) and the white wall (behind the cat). Is it normal ? Sorry for my english.