However , even ISO 102400 rather impressively keeps form darkest squares , even though noise high sharpness contrast low.Many cameras reduce shape chart boxes mush point.ISO figure noise starts become visible : ISO12800 ISO figure noise overwhelms image : ISO102400 Interested ? Help support ePHOTOzine using links.Amazon UK Amazon US Panasonic Lumix S1 The Panasonic Lumix S1 offers everything could possibly want full-frame mirrorless camera , including in-camera image stabilisation , high-res multi-shot mode 96mp images , high-quality 4K UHD video recording , solid weather-sealed camera body great ergonomics.Noise starts creep ISO6400 , ISO12800 slight loss fine detail.This continues ISO25600 , increase noise , loss detail.We 'd still happy use images shot speeds.At ISO51200 detail drops , colour saturation drops .