Question

2. Write down three situations in which the lenses
were used.
way​

Answer 1

Answer:

Lenses are one of the most important considerations in photography. The lens you choose for each shot can dramatically change your results; its best to know how all the types work so you can make more informed decisions as a photographer in various situations.

WIDE ANGLE LENSES

Wide angle lenses, are identified by the bulbous shape to the glass front of the lens. They are loved by landscape photographers the world over. A good lens should include high quality glass, have a low corner distortion rate, where a falloff in sharpness in the corners is minimal, and versatile features such as Image Stabilization (IS). Ideally they should also include a lens hood to minimize lens flare, when shooting into light or the sun. Generally the heavier a wide angle lens the higher quality of the glass used in manufacture, and the better the lens overall.

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Answer 2

Answer:

Lenses are used for focusing light for formation of image.

Explanation:

• A lens is a transparent optical device that helps in getting image of objects. It is made of glass or plastic that is bounded with two surfaces and with at least one curved surface.
• It works on the law of refraction.
• It is used in spectacles, microscopes, telescopes etc.
• In spectacles, lenses are used for correcting vision of short-sightedness (myopia) or long-sightedness (hypermetropia). Convex lens is used for treating hypermetropia and concave lens is used for treating myopia.
• Microscope is used for examining objects that are too small to be seen. It uses convex lenses to focus light.
• Telescope is used for looking far into space. It uses combination of mirrors and lenses to observe distant objects.