( ( ( ( ( Small instruments ) , ) ( used ( at ( this focus ) ) ) ) , ) ( ( ( tip ( with ( the telescope ) ) ) ( as ( ( the telescope ) ( looks ( at ( an object ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Small) (NNS instruments)) (, ,) (VP (VBN used) (PP (IN at) (NP (DT this) (NN focus)))) (, ,)) (VP (VBD tip) (PP (IN with) (NP (DT the) (NN telescope))) (SBAR (IN as) (S (NP (DT the) (NN telescope)) (VP (VBZ looks) (PP (IN at) (NP (DT an) (NN object))))))) (. .)))
Small instruments, used at this focus, tip with the telescope as the telescope looks at an object.
(ROOT (S (NP (DT A) (NN telescope)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB make) (S (NP (NP (NNS objects)) (PP (IN in) (NP (NN space)))) (VP (VB appear) (ADVP (RBR closer))))))))) (. .)))
A telescope is used to make objects in space appear closer.