Table 4: HAWK-I filter summary.
Filter name Central Cut-on Cut-off Width Tansmission Comments

wavelength [nm] (50%) [nm] (50%) [nm] [nm] [%]

Y 1021 970 1071 101 92% out-of-band transmission of $2\times 10^{-4}$

(or 0.04%) between 2.3 and 2.7 $\mu$ m

J 1258 1181 1335 154 88%

H 1620 1476 1765 289 95%

$K_{\rm s}$ 2146 1984 2308 324 82%

CH₄ 1575 1519 1631 112 90%

Br $\gamma$ 2165 2150 2181 30 77%

H₂ 2124 2109 2139 30 80%

NB1060 1061 1057 1066 9 70% Ly $\alpha$ at $z\sim7.7$

NB1190 1186 1180 1192 12 75% Ly $\alpha$ at $z\sim8.7$

NB2090 2095 2085 2105 20 81% H $\alpha$ at $z\sim2.2$

**Table 4:** HAWK-I filter summary.
Filter name	Central	Cut-on	Cut-off	Width	Tansmission	Comments
	wavelength [nm]	(50%) [nm]	(50%) [nm]	[nm]	[%]
Y	1021	970	1071	101	92%	out-of-band transmission of $2\times 10^{-4}$
						(or 0.04%) between 2.3 and 2.7 $\mu$ m
J	1258	1181	1335	154	88%
H	1620	1476	1765	289	95%
$K_{\rm s}$	2146	1984	2308	324	82%
CH₄	1575	1519	1631	112	90%
Br $\gamma$	2165	2150	2181	30	77%
H₂	2124	2109	2139	30	80%
NB1060	1061	1057	1066	9	70%	Ly $\alpha$ at $z\sim7.7$
NB1190	1186	1180	1192	12	75%	Ly $\alpha$ at $z\sim8.7$
NB2090	2095	2085	2105	20	81%	H $\alpha$ at $z\sim2.2$

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