Black-and-white camera film, in the old days of film photography, was very sensitive to blue light but not to red light. Blue skies would often show very little detail, because the film couldn't record all that it was seeing. To compensate, photographers would put a red filter on the lens, darkening the sky enough that the film could record its fluffy clouds. This paragraph best supports the statement that. infrared rays are invisible to the naked eye. black-and-white photography used to be very popular. red filters were very popular in the old days of photography. red filters cut out some blue light on black and white film.

27. What the main idea is for this paragraph.Black-and-white camera film, in the old days of photography, was very sensitive to blue light but not tored light. Blue skies would often show very little detail, because the film couldn’t record all thatit was seeing. To compensate, photographers would put a red filter on the lens, darkening the skyenough that the film could record its fluffy clouds.This paragraph best supports the statement that,A. Red filters were very popular in the old days of photography.B. Infrared rays are invisible to the naked eye.C. Black-and-white photography used to be very popular.D. Red filters cut out some blue light on black and white film.E. Blue filters cut out red light.28. The use of desktop computer equipment and software to create high quality documents such asnewsletters, business cards, letterhead, and brochures is called Desktop Publishing, or DTP. Themost important part of any DTP project is planning. Before you begin, you should know your intendedaudience, the message you want to communicate, and what form your message will take.The paragraph best supports the statement that,A. Desktop Publishing is one way to become acquainted with a new business audience.B. Computer software is continually being refined to produce high quality printing.C. The first stage of any proposed DTP project should be organization and design.D. The planning stage of any DTP project should include talking with the intended audience

Which photographic technique results in enchanting blue hues due to chemical reactions capturing sunlight and shadow? Polaroids Rayograms NFTs Cyanotypes

2Select the correct answer.Why wasn't color photography popular before the 1960s? A. The technology needed to take color photographs wasn't sufficiently developed yet. B. Color film was more expensive than black-and-white film. C. It was considered too commercial and vulgar by earlier artists.

Astronomers use filters when observing and imaging distant objects in space. These filters can be in any color of visible light as well as light that is invisible to human eyes. Each color of light can provide important information about the object that could not be seen otherwise. The image shows a series of 6 boxes with images of different sized cloudy, circles. The boxes are labeled radio, infrared, visible light, ultraviolet, x-rays, and gamma rays. The images in the first four boxes are similar in size and are all translucent. The image in the radio box has a bright ring near the center. The visible light box has bright areas throughout the cloud. The image in the x-rays box is slightly smaller and slightly opaque. The image in the gamma ray box is the smallest the brightest. The image above shows the Crab Nebula in several different wavelengths. The Crab Nebula is an example of what happens when a very large star explodes. Astronomers study events like these in as many different wavelengths of light as possible. Based on the image above, why do astronomers do this? Support your reasoning with three examples from the image above.

Which technique does not describe cyanotype photography? It requires a digital camera to capture images. Cyanotypes produce images in vibrant red tones. This process captures images using chemical reactions that result in distinctive blue hues. It exclusively uses sunlight to develop black-and-white photographs.