Not making the most of Auto ISO
While some photographers turn their noses up at the thought of using Auto ISO, concerned that the camera will opt for a sensitivity that’s unnecessarily high for the conditions, it’s actually very useful. The Auto ISO function can be tailored so that the camera is unable to push the ISO higher than a sensitivity you’ve dialled in, and you can also set the minimum shutter speed you need, improving your chances of taking sharp handheld photos.
It also adds flexibility in manual mode, enabling you to set a combination of aperture and shutter speed to give you the look you want, with the camera then adjusting the ISO to keep the exposure consistent as the light changes.
Use the Auto ISO menu to fix the highest ISO that the camera can choose