Why are the photos taken by my camera so dark?

1, and the brightness of the photo is determined by the set parameters;

2. Under the same ambient lighting and different parameter settings, the shooting effect is different. Can be standard exposure, dark photos (dark tone or low key), bright photos (bright tone or high key);

3. Under the same parameter setting, the brightness of the photo is affected by the amount of light entering the lens (also called lens speed). The luminous flux of a lens is one of the optical characteristics of the lens.

4. Under the same settings, the photos of high light flux lens will be brighter, and the photos of low light flux lens will be darker;

5. If you want to keep the brightness of photos unchanged, you need to increase the shutter speed of Qualcomm lens and decrease the shutter speed of low-flux lens. Lowering the shutter speed will affect the stability of hand-held shooting;

6. There is reciprocity among shutter, aperture and sensitivity (ISO), which influence each other. It is assumed that reducing the shutter speed can brighten the photo without changing the aperture and sensitivity.

7. If only automatic parameters or standard exposure are used, the Qualcomm lens will be brighter and the low-pass lens will be darker. This is caused by hardware, and there is no solution.