Traditional Culture Encyclopedia - Photography major - The absorption spectrum peak of green film is located at
The absorption spectrum peak of green film is located at
First, the introduction of green film
Green-sensitive film (flat granular film): Green-sensitive film is a positive film used with a green-emitting intensifying screen, and its absorption spectrum peaks at 550nm. Three-dimensional silver halide particles are cut into flat shapes and arranged in the expected way, and a layer of dye to prevent fluorescence overlap effect is added to the emulsion. Thereby increasing the clarity of the image.
Two. Other film introductions
1. Blue-sensitive film: Blue-sensitive film is a color-blind film used with blue-purple fluorescent intensifying screen, and its absorption spectrum peak is at 420nm. It is mainly divided into general-purpose (RX-type) films with standard sensitivity, suitable for most general photography, with moderate performance, low fog and high contrast, which can enhance the contrast among bones, air and contrast agents.
2. Mammography positive film: This is a special film for breast with high resolution, high contrast, single-layer emulsion and sensitivity to green light. Because of the flat particle technology, the fluorescence overlapping effect is almost reduced to 0%, and extremely clear and sharp images can be obtained, which can improve the skin line image, especially in breast enhancement photography.
3. High-definition photographic film: This is a high-resolution and high-contrast film. It is especially suitable for limb photography that needs to provide high-definition images and display tissue microstructure information.
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