Interpretation of Chemical Photography Terminology

A complete book explaining photographic terms.

1, DC: the symbol of digital camera.

2. Symbol of digital camera.

3.ASA: American sensitivity standard mark.

4.ISO: international standard sensitivity standard mark.

5.GB: China standard mark of sensitivity.

6.MC: multilayer coating mark of camera lens.

7.CCD: The charge-coupled device of digital camera is the photosensitive device of digital camera.

8.LCD: liquid crystal display.

9. Shutter: A device that controls the length of light entering the focal plane of a camera.

10, depth of field:

This is the clearest place to focus on a scene. The clearance range before and after the scene is called depth of field, which is called depth of field for short.

1 1. Standard lens: a lens with a focal length equal to or slightly longer than the diagonal length of the negative.

12, short focal length lens: a lens with a focal length less than the diagonal length of the negative.

13. Long focal length lens: a lens with a focal length greater than the diagonal length of the negative.

14. viewfinder: a device on a camera that selects the scene range and has other functions.

15, object distance: the distance from the subject to the front node of the lens.

16, tolerance: the ability of photographic film to record the brightness difference of the scene in proportion and correctly express the brightness level of the scene.

17, granularity: the feeling of granular state produced by silver salt in human eyes.

18, natural light: natural light source.

19, latent image: the invisible latent image produced after the film is exposed in the camera and before development.

20. Development: the process of changing the latent image of exposed photosensitive materials into visible images with developing solution.

2 1. Fixing: After development, the process of removing the photosensitive silver halide and fixing the photosensitive silver halide to stabilize the image is called fixing.

22. Standard Gray: The gray tone produced by the reflectivity of 18%, also known as V-zone gray, is the benchmark of exposure.

23. Panchromatic film: Black and white film sensitive to seven monochromatic lights.

24. Film: It is a photosensitive material that can record images. After a certain chemical treatment, the image can be fixed.

25. Focal length: the vertical distance from the second node to the focal plane when the scene at infinity forms a clear image on the focal plane.

26. exposure latitude: refers to the degree to which photographic film can tolerate improper exposure.

27. product photography: it is also a product photo. Mainly used for product samples, brochures and product posters.

28. Main light: also known as plastic light, refers to the light that dominates the photographic picture.

29. Brightness: it is the general term for the intensity of light source, the illuminance of light on the surface of the object and the brightness of the surface of the object.

30. Lighting angle: refers to the angle between the propagation direction of the light source and the horizon. 3 1, front side light: also called oblique side light. The direction of light projection forms a horizontal viewing angle of about 45 degrees with the camera axis.

32. Two-sided light: also known as clip light. The light shines from both sides of the subject, and the brightness of the main light on both sides is equal.

33, photography summary:

It is an artistic means for photographers to reveal the essential characteristics of things through individual unique artistic forms.

34. Photographic theme: refers to the visual image selected and organized by the photographer and reflected in the content of the photographic picture.

35, the beauty of photography:

It means that in portrait photography, the inner beauty of characters can only be displayed through visual artistic images.

36, the natural beauty of photography:

All the beauty that exists in real life, unprocessed and in a natural state, is called natural beauty.

37. The sense of quantity in photography creation;

This is a plastic arts term. Photography refers to the feeling of the weight, length, size and quantity of objects.