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Photographic film is by it's very definition sensitive to light. Different types of film is sensitive to different colour spectrum The first types of film had a very limited sensitivity to colours and only reacted to blue light. As technology progressed film was made sensitive to a wider spectrum of light.
Orthochromatic film was (is) sensitive to colours from blue to green, thus not sensitive to red light hence not affected by a "red light" during development.
This film type was, however, superseded by "Panchromatic" film that is sensitive to all light spectrum, including red light. This means that most (modern) film cannot be developed using a red darkroom light without permanently destroying the film.
Copying images (to paper or plastic sheets) is a different matter as the light sensitive emulsion on copy-paper is notsensitive to red light which is why a red light can safely be used during copying and development of the copies.
What else can I help you with?
Why do photographers store film in the refrigerator?
Film reacts to light and heat is closely related to light, think sunshine or touching a light bulb that has been on for a while, so keeping film in a refrigerator protects it from being affected by heat which will cause a red/orange cast over the image. (See links below)
How does an infra-red camera work?
Infrared (IR) photos are taken with normal cameras using infrared film. The difference is the film used, not the camera. IR film is sensitive to the IR spectrum of light, not the visible spectrum.
Which radiation is used to take photography in dark?
there is always a bit of light at all times unless i geuss something is specifically designed to let in no light, but the camera has a speed at which it opens and closes it shutter which lets the light go in to affect the film kept on the inside. so the longer you leave that shutter open the longer the light has to go in to effect the film. so since there is less light you have to leave the shutter open long enough for the film to be effected by the light, which is why you need a tripod when taking long photos cause its easy to make the photo blurry. if there is a lot of light you only have to open the shutter for a fraction of a section. unlike in some dark photos you have to open for even a few minutes.
What are red light bulbs used for?
To make red light.
Why do photographers develop pictures in dark rooms?
The darkroom in photography is just what it sounds like: a dark room - a room which excludes light. Before digital, photography was accomplished using materials sensitive to light which thus had to be handled and processed in total or near total darkness so as not to spoil ("fog") the images with stray, unfocused light. Early photographic materials were not sensitive to all colors of light, so a darkroom or, sometimes, a portable dark tent (used in the field by "wet plate" photographers) could have a red or orange window in it because the early photosensitive materials were "red blind," meaning that red or orange light did not affect them. This is still true of some black and white papers, and most black and white print darkrooms will be equipped with dim "safelights" of a red or amber color. But as negative materials became more sensitive to light, and all colors of light, negative darkrooms had to become true dark rooms - totally blacked out so that no light could leak in at all. Photographers learned quickly how to work efficiently in total darkness, just as blind people can navigate very well without being able to see.As an experiment, step into your closet or bathroom and close the door without turning on any light. Wait five minutes or so. Is the room totally dark, or can you see things with the light leaking around and under the door? A photographer must seal off all those light leaks. If you can see anything at all, you are not truly in a darkroom.Incidentally, the word camera comes from the Latin camera obscura, which translates literally room (or chamber) dark (or veiled). In other words, a camera is just a "dark room."
How do red and blue grow lights affect plant growth and development?
Red and blue grow lights affect plant growth and development by providing specific wavelengths of light that are essential for photosynthesis. Red light promotes flowering and fruiting, while blue light stimulates vegetative growth and overall plant health. By using a combination of red and blue lights, plants can receive the full spectrum of light needed for optimal growth and development.
How do red and blue light affect plant growth and development?
Red and blue light are essential for plant growth and development. Red light stimulates photosynthesis and flowering, while blue light promotes vegetative growth and chlorophyll production. Together, these light wavelengths play a crucial role in regulating plant processes and overall health.
How does the presence of red or blue light affect the growth of plants?
The presence of red light promotes plant growth, especially during the flowering stage, while blue light helps with overall plant development and leaf growth. Both red and blue light are essential for photosynthesis and can influence the plant's growth and development.
How do red and blue light wavelengths affect plant growth and development?
Red and blue light wavelengths play a crucial role in plant growth and development. Red light stimulates photosynthesis and overall plant growth, while blue light influences plant morphology and flowering. Together, these wavelengths help regulate various processes in plants, ultimately affecting their overall health and productivity.
How do red light and blue light differ in their effects on plant growth and development?
Red light and blue light have different effects on plant growth and development. Red light promotes flowering and fruiting, while blue light stimulates vegetative growth and leaf development. Plants use these different light wavelengths to regulate various physiological processes, ultimately influencing their overall growth and development.
What are the differences in the effects of blue light versus red light on plant growth and development?
Blue light and red light have different effects on plant growth and development. Blue light stimulates photosynthesis and helps with plant growth, while red light promotes flowering and fruiting. Plants need both types of light for optimal growth and development.
Why can red light be used in a dark room?
Dim red light will not expose black and white photographic film. Color film must be handled in total darkness.
Why the film is being exposed in red light?
Film is exposed to red light because of the radiating influx of the temporical light standards, if the light came from a normal bulb, light that emitted from it would make it dull and not show the picture in full quality.
What color of light affect plants the most?
Red
Does red neon light affect roosters?
The answer to the question is no absolutely not, the only animal that the color red or red neon lights affect is a Bull
How light affect color and how color affect light?
Color and light are the same thing A color is a spesific wavelength of light. All the colors together makes white light. A red ball reflect "only" the red wavelength of the light, thereby appearing red. If you shine on it with a blue light and blue light only, the ball will appear Black, simply because there is no Red light to reflect.
What is the significance of the color of a grow light in terms of its impact on plant growth and development?
The color of a grow light is significant because different colors of light affect plant growth and development in different ways. For example, blue light promotes vegetative growth and red light stimulates flowering and fruiting. By using the right color of light, growers can optimize plant growth and yield.
