However , still would n't recommend using ISO51200 , unless 's way 'll able capture shot.There variety noise reduction options including slow shutter speed noise reduction , High ISO noise reduction options Auto , Low , Medium , High , Off , well Custom settings , letting adjust noise reduction amount individual ISO speed.We took shots Auto settings.ISO figure noise starts become visible : ISO3200 ISO figure noise overwhelms image : ISO25600 Interested ? Help support ePHOTOzine using links.Amazon UK Amazon US Best Low Light Mirrorless APS-C Cameras Fujifilm X-H2S The Fujifilm X-H2S gives superb results offers impressive quality well impressive handling.The basic ISO range 160 12800 within range noise impressively low images usable.The lowest noise levels best sharpness found ISO 1600 , ISO 3200 6400 acceptable .