[photography knowledge] v

1. Step-by-step exposure method: Step-by-step exposure method, also known as bracket exposure method, is to shoot the same subject with several different exposures, usually according to the estimated normal exposure, and then increase and decrease the exposure respectively.

2. Meaning of EV value: EV value is short for exposure value. He uses a number to represent the exposure required by the film, and a number to represent the unified exposure, which can make the problem simple and easy to handle. This number is the EV value.

3. Color: Everything in nature can show various colors under sunlight, which is color.

4. Color cast: refers to black and white, refers to two kinds of color cast, they are only divided into light and dark.

5. Photography aesthetics: usually refers to the evaluation criteria and understanding of the choice of scenery and the aesthetic value of photographic works of art.

6. Variable contrast photographic paper: also known as multi-tone enlarged paper. It is specially used to enlarge black and white photos. It is photographic paper that can change the contrast number at will.

7. Sports photography: photography with the theme of various sports.

8. 135 camera: a small camera using 135 film.

9. Digital camera: A new camera that uses CCD\CMOS photoelectric sensor instead of film and records images through photoelectric conversion.

10. Pixel: the basic unit of digital image.

1 1. Exposure meter: an instrument for measuring exposure value.

12. Smooth light: also known as plane light or front light, the light in front of the subject in the same shooting direction as the camera lens.

13. Scattered light: also known as diffuse light, light with unclear light direction. Such as light in cloudy days or shadows.

14. Sensitivity: refers to the sensitivity of film to light intensity.

15. lens: where the refractive surface is two spheres, or one is a plane and the other is a spherical transparent body, it is called a lens.