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Black and white, the two contrasting extreme colors, are often used repeatedly in aesthetics. In terms of dressing, black and white are the most classic colors.
The contrast between the two colors is clear and simple. It is both conflicting and tolerant, one dark and one dark, one motion and one static. The average person wears black and white color matching is usually not wrong, but from this basic law can realize the unique new collocation, more need to match skills.
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Focal length of automotive camera lens parameters.
The focal length determines the size of the field of view Angle. The focal length value is small, the field of view Angle is large, and the observed range is large, but the distant object is not clearly resolved.Large focal length, small field of view Angle, small scope of observation, as long as the appropriate focal length selection, even distant objects can be clearly seen.Since the focal length and the field of view are one-to-one correspondence, a certain focal length means a certain field of view. Therefore, when selecting the focal length of the lens, it is necessary to fully consider whether it is important to observe the detail or to have a large observation range. If you want to see the detail, you should choose the lens with a long focal length.If you're looking at a large scene up close, choose a wide-angle lens with a small focal length.
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