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Suffice it to say, 30-45 degrees is considered a narrow field, 50-60 degrees considered a normal field, 65-70 degrees considered widefield, and 78-85 degrees considered an ultra-wide field of view.
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释义
一般来说,30-45度属于窄的类型,50-60属于中等,65-70属于广角,78-85属于超广角了。
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