雙筒望遠(yuǎn)鏡

The field glasses adjust with a screw. 雙筒望遠(yuǎn)鏡是用一個(gè)旋鈕調(diào)節(jié)焦距的。

This telephoto image captures both bright Saturn and greenish Lulin in the same field in a scene not too different from binocular views. 這張望遠(yuǎn)鏡影像同時(shí)捕捉到了明亮的土星以及發(fā)出綠色光芒的鹿林彗星，用雙筒望遠(yuǎn)鏡不難發(fā)現(xiàn)這顆彗星。