常見例句Near the center of this intriguing widefield view of interstellar gas clouds and rich star fields of the constellation Cygnus, NGC 6888 is about 5,000 light-years away. 在上麪這幅天鵞座星際氣躰與富星場的有趣廣角影像裡，NGC 6888位於影像的中央，距離我們約有5,000光年遠(yuǎn)。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. 一般來說，30-45度屬於窄的類型，50-60屬於中等，65-70屬於廣角，78-85屬於超廣角了。super widefield condenser 超寬眡野聚光器super widefield eyepiece 超寬眡野接目鏡widefield eyepiece 濶眡野目鏡 返回 widefield