It's light proof and makes sure you get no problems when opening the camera.
1-2	It's	_	_	_	_	_	_	_	_
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj|6:nsubj|7:nsubj:xsubj	_
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	4:cop	_
3	light	light	NOUN	NN	Number=Sing	4	obl:npmod	4:obl:npmod	_
4	proof	proof	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	and	and	CCONJ	CC	_	6	cc	6:cc	_
6	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	conj	4:conj:and	_
7	sure	sure	ADJ	JJ	Degree=Pos	6	xcomp	6:xcomp	_
8	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	9	nsubj	9:nsubj	_
9	get	get	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	7	ccomp	7:ccomp	_
10	no	no	DET	DT	_	11	det	11:det	_
11	problems	problem	NOUN	NNS	Number=Plur	9	obj	9:obj	_
12	when	when	ADV	WRB	PronType=Int	13	advmod	13:advmod	_
13	opening	open	VERB	VBG	VerbForm=Ger	9	advcl	9:advcl:when	_
14	the	the	DET	DT	Definite=Def|PronType=Art	15	det	15:det	_
15	camera	camera	NOUN	NN	Number=Sing	13	obj	13:obj	SpaceAfter=No
16	.	.	PUNCT	.	_	4	punct	4:punct	_
