What is a reverse film? Reverse negative thrust? Movies?

Reverse film is a kind of photosensitive film which can directly obtain positive image after reverse development. Black-and-white reversal film can directly obtain the transparent film of the dark image consistent with the main body; The color reversal film can directly obtain the transparent film with the same color as the subject, and the color is true and bright, but the tolerance is small. Reverse film is widely used in printing plate making or making slides because of its high-quality positive effect. Professional photographers mostly use color reversal films when taking advertising photos.

The negative development of reversal film is to shoot with reversal film and develop the film with C-4 1 to make the original reversal film negative.

Type a negative. Of course, this is what you have to do when you develop the film yourself. If there is a reverse film, you can shoot it outside.

Shuan, we use PS, of course, more unnecessary)

The photos obtained by negative film reversal are bright in color and contrast, and the red, blue and Huang San colors of the scenery are particularly exaggerated; Objectively speaking, the negative effect of reverse film is more expressive in color than negative film, and the exaggerated expression of its tone is not as good as that of color negative film, but in hierarchical expression, the negative effect of reverse film is not as good as negative film, so it is very important to determine the shooting subject first and then choose the film type. Reverse negative bias is mainly suitable for portrait photography and some landscape photos. Under the negative influence of the reverse film, the two shooting themes are strongly contrasted, the main body is prominent and the color is bright, which makes the photos have unique charm.

However, it is difficult and demanding to shoot, enlarge and enlarge the reverse film. Therefore, it is particularly important to choose the reversal film properly when shooting. When the light source is sufficient and the contrast of the scene is strong, you can choose a low-sensitivity reversal film to shoot. 50 and 100 reversal films can get saturated and gorgeous photos. In poor light conditions, you can choose a reversal film of about 200 or 400 to shoot. The reversal film with higher sensitivity can reduce the contrast to a certain extent and make the photo slightly softer.

It is the most difficult to control the exposure and correct the color when enlarging the reverse film. At present, there are not many photographers and photographers who use the negative process of reverse film to develop and enlarge, and many color enlarging shops are not familiar with it, so they generally refuse to develop and enlarge. Most enlargers who accept enlarged printing have no experience with reversed negative films, and it is normal that the enlarged photos are yellow, blue and green. It's best for general photographers to clearly point out their own needs, supervise the operation of magnifiers on the spot, and select their satisfactory works through "optimization method".

It is also very difficult to enlarge the negative of the reversal film, because its exposure latitude is best controlled within 0.3 seconds, which is different from the primary colors of this negative film and negative film.

The negative influence of reversal film has a good performance in the application of landscape photography, and its advantage in portrait shooting is also very prominent, but the color reproduction of characters is not easy to be normal, and the faces of characters are prone to yellowing. However, due to the high transparency and contrast, the edge colors of the characters' hair, eyebrows, eyes and lip lines penetrate each other, which is similar to the edge immersion left by China painters on Xuan paper, and has a very exaggerated artistic effect.

Movies. The English name of a film is film, which means film or film. Some people call it film. The basic components of film are: (1) film used as photosensitizer (also called emulsion); And (2) a membrane substrate for supporting the drug membrane.