ING Filter Database Search

Serial #	Name	λcentral (Å)	FWHM (Å)	System	Band	Throughput		Size (mm)	Thickness (mm)	Owner	Available	Cosmetics
						Peak (%)	Plots
3	RGOU1	3533	781	RGO	U	73	txt png ps pdf	50x50	6	ING	N	Some crystallisation and possible internal cracking. Filter should be throughput (and PSF) scanned before further use. 20100114 - Filter made "Unavailable" until assessed.
4	RGOU2	…	…	RGO	U	…	…	50x50	…	ING	N
8	RGOB1	4313	1050	RGO	B	53	txt png ps pdf	50x50	7.3	ING	Y	bit of air between the glass layers
11	RGOV1	5326	959	RGO	V	67	txt png ps pdf	50x50	7.2	ING	Y
12	RGOV2	5438	915	RGO	V	68	txt png ps pdf	50x50	7.2	ING	Y	one corner off
14	RGOR1	6391	1455	RGO	R	81	txt png ps pdf	50x50	7.2	ING	Y
15	RGOR2	6430	1500	RGO	R	82	txt png ps pdf	50x50	7.2	ING	Y
17	RGOI1	8113	…	RGO	I	95	txt png ps pdf	50x50	6.9	ING	Y
20	RGOZ1	8663	…	RGO	Z	Invalid	txt png ps pdf	50x50	7.1	ING	Y
21	RGOZ2	8748	…	RGO	Z	93	txt png ps pdf	50x50	7	ING	Y
22	RGOZ3	8734	…	RGO	Z	99	txt png ps pdf	50x50	7.2	ING	Y	broken corner
24	GUNNZ	8750	…	Gunn	Z	92	txt png ps pdf	50x50	4.1	ING	Y	Chipped in corner
25	HARB1	4296	1030	Harris	B	68	txt png ps pdf	50x50	3.9	ING	Y
26	HARB2	4300	1100	Harris	B	69	txt png ps pdf	50x50	3.9	ING	Y
27	HARB3	4304	1072	Harris	B	68	txt png ps pdf	50x50	3.9	ING	Y
28	HARB4	4304	1040	Harris	B	69	txt png ps pdf	50x50	4	ING	Y	damaged by oil drops
30	HARV1	5461	998	Harris	V	90	txt png ps pdf	50x50	3.8	ING	Y	Staining in the form of sequences of droplets, probably caused by previous cleaning, cover both surfaces extensively.
31	HARV2	5452	993	Harris	V	86	txt png ps pdf	50x50	3.9	ING	Y	damaged by oil
32	HARV3	5438	984	Harris	V	86	txt png ps pdf	50x50	3.9	ING	Y	chipped in one corner
33	HARV4	5438	985	Harris	V	87	txt png ps pdf	50x50	4	ING	Y	lots of (internal?) speckles
36	HARR1	6410	1460	Harris	R	84	txt png ps pdf	50x50	3.9	ING	N
37	HARR2	6373	1491	Harris	R	84	txt png ps pdf	50x50	4	ING	Y	One surface entirely covered with shallow scratches.
38	HARR3	6370	1500	Harris	R	83	txt png ps pdf	50x50	4	ING	Y	chipped in one corner, badly scratched
39	HARR4	6390	1540	Harris	R	84	txt png ps pdf	50x50	3.9	ING	Y	damaged by oil drops
41	HARI1	8120	…	Harris	I	95	txt png ps pdf	50x50	4	ING	Y
42	HARI2	8119	…	Harris	I	93	txt png ps pdf	50x50	4	ING	Y
43	HARI3	8060	…	Harris	I	92	txt png ps pdf	50x50	4	ING	Y
44	HARI4	8095	…	Harris	I	91	txt png ps pdf	50x50	4	ING	Y
46	KPB1	4425	1155	Kitt Peak	B	81	txt png ps pdf	50x50	3	ING	Y
47	KPB2	4370	1100	Kitt Peak	B	82	txt png ps pdf	50x50	3	ING	Y
48	KPB3	4385	1065	Kitt Peak	B	80	txt png ps pdf	50x50	2.9	ING	Y	several features
49	KPV1	5450	1136	Kitt Peak	V	78	txt png ps pdf	50x50	5.7	ING	Y
50	KPV2	5450	923	Kitt Peak	V	80	txt png ps pdf	50x50	2.9	ING	Y	large chip on one side
51	KPV3	5450	1136	Kitt Peak	V	79	txt png ps pdf	50x50	5.7	ING	Y
52	KPR1	…	…	Kitt Peak	R	100	txt png ps pdf	50x50	3	ING	N	Scratch pattern on 4 corners; probably only central 50 mm circle has full throughput. Small stain on one side - haven"t tried cleaning.
53	KPR2	6479	1278	Kitt Peak	R	92	txt png ps pdf	50.5x50.8	3	ING	Y	Chipped edges. In ACAM, requires 51mm square holder + small O-ring (to prevent movement and mask chipped, unpainted edges) + spacer ring.
54	KPR3	6444	1207	Kitt Peak	R	89	txt png ps pdf	50x50	3	ING	Y
55	KPI1	8112	…	Kitt Peak	I	85	txt png ps pdf	50x50	3.1	ING	Y	chipped
56	KPI2	8112	…	Kitt Peak	I	85	txt png ps pdf	50x50	3.1	ING	Y
57	KPI3	8130	…	Kitt Peak	I	84	txt png ps pdf	50x50	3.1	ING	Y
58	H6559	6559	57	Narrow Band	Halpha 6559/57	55	txt png ps pdf	50x50	6.5	ING	Y	Shallow dents in the edges. Bad transmitted wavefront errors, likely to degrade the PSF by > 1" in ACAM.
59	H6563	6563	53	Narrow Band	Halpha 6563/53	…	…	50x50	…	ING	N
60	H6561	6561	38	Narrow Band	Halpha 6561/38	34	txt png ps pdf	50x50	6.6	ING	N	lots of internal speckles
61	H6570	6570	55	Narrow Band	Halpha 6570/55	48	txt png ps pdf	51x51	6.7	ING	Y	A wide margin around all 4 edges of filter shows degraded transmission but no spectral leak has been detected. The wavelength values painted on the filter edge ("5565/60") do NOT correspond with measured values or filter name. The filter ID 61 is barely legible.
62	H6553	6553	63	Narrow Band	Halpha 6553/63	65	txt png ps pdf	51x51	8.7	ING	Y	Ghost?
63	H6594	6594	44	Narrow Band	Halpha 6594/44	53	txt png ps pdf	50x50	6.5	ING	Y
64	H6607	6607	50	Narrow Band	Halpha 6607/50	49	txt png ps pdf	50x50	6.3	ING	Y
65	H6626	6626	44	Narrow Band	Halpha 6626/44	52	txt png ps pdf	50x50	6.5	ING	Y
66	H6645	6645	50	Narrow Band	Halpha 6645/50	54	txt png ps pdf	50.8x51.5	8.1	ING	Y	Tiny spots visible all over the narrowband coating side, these cannot be cleaned off with Propanol. They appear to be just under the coating. In addition there appears to be some scratch/scuff marks on the silvered side
67	H6656	6656	44	Narrow Band	Halpha 6656/44	50	txt png ps pdf	50x50	6.7	ING	Y
68	H6686	6686	44	Narrow Band	Halpha 6686/44	50	txt png ps pdf	50x50	6.5	ING	Y	slightly scratched
69	H6695	6695	53	Narrow Band	Halpha 6695/53	58	txt png ps pdf	51x50	8	ING	Y	Bad transmitted wavefront errors, likely to degrade the PSF by > 1" in ACAM.
70	H6700	6700	53	Narrow Band	Halpha 6700/53	…	…	50x50	…	ING	N
71	H6712	6712	42	Narrow Band	Halpha 6712/42	48	txt png ps pdf	50x50	6.5	ING	Y
72	H6736	6736	48	Narrow Band	Halpha 6736/48	51	txt png ps pdf	50x50	8.1	ING	Y	Bad transmitted wavefront errors, likely to degrade the PSF by > 1" in ACAM.
73	H6785	6785	58	Narrow Band	Halpha 6785/58	59	txt png ps pdf	51x51	8.1	ING	Y	Filter being investigated as poor image quality observed with ACAM.
74	H6834	6834	51	Narrow Band	Halpha 6834/51	52	txt png ps pdf	50x50	6.5	ING	Y
75	H6876	6876	56	Narrow Band	Halpha 6876/56	58	txt png ps pdf	50x50	6.6	ING	Y
76	H6923	6923	54	Narrow Band	Halpha 6923/54	60	txt png ps pdf	50x50	6.5	ING	Y
77	H6962	6962	51	Narrow Band	Halpha 6962/51	57	txt png ps pdf	50x50	6.5	ING	Y	Bad transmitted wavefront errors, likely to degrade the PSF by > 1" in ACAM.
78	O3731	3731	52	Narrow Band	[OII] 3731/52	35	txt png ps pdf	50x50	8.8	ING	Y
79	S4067	4067	30	Narrow Band	[SII] 4067/30	28	txt png ps pdf	50x50	8.9	ING	N	Damaged - not available.
80	He4685	4685	78	Narrow Band	HeII 4685/78	65	txt png ps pdf	50x50	8.7	ING	Y
81	H4861	4861	54	Narrow Band	Hbeta 4861/54	60	txt png ps pdf	50x50	8.7	ING	Y
82	O5009	5009	51	Narrow Band	[OIII] 5009/51	64	txt png ps pdf	50x50	8.9	ING	Y	Chipped on one side, with the chip entering up to ~10% into the chip, and stretching along ~20% of the side.
83	He5877	5877	49	Narrow Band	HeI 5877/49	65	txt png ps pdf	50x50	8.7	ING	Y
84	O6298	6298	54	Narrow Band	[OI] 6298/54	73	txt png ps pdf	50x50	8.7	ING	Y
85	N6584	6584	21	Narrow Band	[NII] 6584/21	45	txt png ps pdf	50x50	8.9	ING	Y
86	S6727	6727	48	Narrow Band	[SII] 6727/48	77	txt png ps pdf	50x50	8.9	ING	Y
87	O7331	7331	50	Narrow Band	[OII] 7331/50	68	txt png ps pdf	50x50	8.9	ING	Y
88	S9077	9077	54	Narrow Band	[SIII] 9077/54	…	…	50x50	8.7	ING	Y
89	S9540	9540	52	Narrow Band	[SIII] 9540/52	…	…	50x50	8.7	ING	Y
90	He10839	10839	114	Narrow Band	HeI 10839/114	…	…	50x50	8.7	ING	Y
91	T3727	3727	30	Narrow Band	TAURUS 3727/30	19	txt png ps pdf	76	10.1	ING	Y	Coating degraded about 10%
92	T3737	3754	50	Narrow Band	TAURUS 3737/50	28	txt png ps pdf	50	8.4	ING	Y	Coating damage and a chip near the edge. Coating near centre is different colour or reflectivity, about 20 mm diameter. Both defects have resulted in alteration of bandwidth with respect to scan performed in 2005, resulting in a drift of peak throughput towards red wavelengths by about 35 Angstrom. Chipped areas must be carefully masked or this drift increases to 60 AA. See Scan data below.
93	T3770	3770	50	Narrow Band	TAURUS 3770/50	27	txt png ps pdf	50	9.1	ING	Y
94	T3742	3742	30	Narrow Band	TAURUS 3742/30	23	txt png ps pdf	76	10.1	ING	Y
95	T3757	3757	30	Narrow Band	TAURUS 3757/30	24	txt png ps pdf	76	9.8	ING	Y
96	T3772	3772	30	Narrow Band	TAURUS 3772/30	23	txt png ps pdf	76	10.2	ING	Y	Needs cleaning
97	T4550	4550	100	Narrow Band	TAURUS 4550/100	55	txt png ps pdf	76	4.1	ING	Y
98	T4570	4570	320	Narrow Band	TAURUS 4570/320	68	txt png ps pdf	63	6.9	ING	Y
99	T4770	4770	320	Narrow Band	TAURUS 4770/320	66	txt png ps pdf	63	6.9	ING	Y
100	T4868	4868	15	Narrow Band	TAURUS 4868/15	32	txt png ps pdf	63	7	ING	Y	8mm all arond edjes coating degraded
101	T4880	4880	100	Narrow Band	TAURUS 4880/100	68	txt png ps pdf	76	10.5	ING	Y	no coating in edges (needs baffling)
102	T4883	4883	15	Narrow Band	TAURUS 4883/15	32	txt png ps pdf	63	7.2	ING	Y	8mm all around the edges coating degraded
103	T4898	4898	15	Narrow Band	TAURUS 4898/15	32	txt png ps pdf	63	7.2	ING	Y
104	T4912	4912	15	Narrow Band	TAURUS 4912/15	23	txt png ps pdf	63	7	ING	Y	15mm all arond edjes coating degraded
105	T4962	4962	15	Narrow Band	TAURUS 4962/15	34	txt png ps pdf	76	6.5	ING	Y
106	T4974	4974	15	Narrow Band	TAURUS 4974/15	37	txt png ps pdf	76	7	ING	Y	4mm no coating in edges (needs baffling)
107	T5000	5000	350	Narrow Band	TAURUS 5000/350	71	txt png ps pdf	63	7	ING	Y
108	T5009	5009	15	Narrow Band	TAURUS 5009/15	43	txt png ps pdf	76	13.2	ING	Y
109	T5010	5010	100	Narrow Band	TAURUS 5010/100	68	txt png ps pdf	76	10	ING	N
110	T5012	5012	20	Narrow Band	TAURUS 5012/20	53	txt png ps pdf	50	9.9	ING	Y
111	T5021	5021	15	Narrow Band	TAURUS 5021/15	43	txt png ps pdf	76	13.2	ING	Y
112	T5032	5032	20	Narrow Band	TAURUS 5032/20	46	txt png ps pdf	50	10	ING	Y
113	T5033	5033	15	Narrow Band	TAURUS 5033/15	42	txt png ps pdf	76	13.2	ING	Y
114	T5045	5045	15	Narrow Band	TAURUS 5045/15	43	txt png ps pdf	76	13.2	ING	Y
115	T5052	5052	20	Narrow Band	TAURUS 5052/20	52	txt png ps pdf	50	9.9	ING	Y
116	T5065	5065	15	Narrow Band	TAURUS 5065/15	28	txt png ps pdf	76	6.8	ING	Y	4mm all arond edjes coating degraded
117	T5072	5072	20	Narrow Band	TAURUS 5072/20	51	txt png ps pdf	50	9.7	ING	Y	3 large chips on the outer edges, despite ring mounting
118	T5092	5092	20	Narrow Band	TAURUS 5092/20	54	txt png ps pdf	50	9.7	ING	Y	8mm all around edges coating degraded on the reflective (colourless) side
119	T5111	5111	15	Narrow Band	TAURUS 5111/15	35	txt png ps pdf	76	9.9	ING	Y
120	T5129	5129	15	Narrow Band	TAURUS 5129/15	36	txt png ps pdf	76	9.8	ING	Y
121	T5145	5145	15	Narrow Band	TAURUS 5145/15	35	txt png ps pdf	76	6.9	ING	Y	Coating looks degraded 1cm especially around edges, colour variation, also circular marks on the reflective side (White) probably caused by circular rubbing when cleaning.
122	T5162	5162	15	Narrow Band	TAURUS 5162/15	33	txt png ps pdf	76	9.8	ING	Y
123	T5175	5175	15	Narrow Band	TAURUS 5175/15	35	txt png ps pdf	76	6.8	ING	Y	Extensive scratches on both sides. Coating degrded 8mm around edges (yellow side)
124	T5196	5196	15	Narrow Band	TAURUS 5196/15	40	txt png ps pdf	76	9.7	ING	Y
125	T5214	5214	15	Narrow Band	TAURUS 5214/15	39	txt png ps pdf	76	9.6	ING	Y
126	T5220	5220	380	Narrow Band	TAURUS 5220/380	69	txt png ps pdf	63	7	ING	N
127	T5232	5232	15	Narrow Band	TAURUS 5232/15	39	txt png ps pdf	76	10.1	ING	Y
128	T5250	5250	15	Narrow Band	TAURUS 5250/15	37	txt png ps pdf	76	9.9	ING	Y
129	T5268	5268	15	Narrow Band	TAURUS 5268/15	39	txt png ps pdf	76	9.9	ING	N	Damaged - not available.
130	T5340	5340	15	Narrow Band	TAURUS 5340/15	21	txt png ps pdf	76	6.8	ING	Y
133	T5700	5700	450	Narrow Band	TAURUS 5700/450	66	txt png ps pdf	63	6.9	ING	Y	Cloudy around outer edges (visible on detector side), perhaps limiting clear aperture to some 50 mm diameter. In ACAM slit slide this reduces the field a central circular area of some 250 arcsec diameter. Outside this, signal goes to zero.
134	T5905	5905	10	Narrow Band	TAURUS 5905/10	21	txt png ps pdf	76	7.1	ING	Y
135	T5960	5960	470	Narrow Band	TAURUS 5960/470	69	txt png ps pdf	63	6.9	ING	Y	Circular marks at the reflective side also 8mm coating damages all around edges.
136	T6240	6240	540	Narrow Band	TAURUS 6240/540	59	txt png ps pdf	63.5	6.9	ING	Y
137	T6303	6303	15	Narrow Band	TAURUS 6303/15	37	txt png ps pdf	63	9.8	ING	Y
139	T6565	6565	15	Narrow Band	TAURUS 6565/15	49	txt png ps pdf	76	13.2	ING	Y
140	T6568	6568	17	Narrow Band	TAURUS 6568/17	25	txt png ps pdf	50	5.9	ING	Y
141	T6577	6577	23	Narrow Band	TAURUS 6577/15	48	txt png ps pdf	76	13.9	ING	Y
142	T6589	6589	24	Narrow Band	TAURUS 6589/15	52	txt png ps pdf	76	14.1	ING	Y	1cm all arond edjes coating degraded (on the White side) also White spots at the red side
144	T6590	6590	130	Narrow Band	TAURUS 6590/130	57	txt png ps pdf	76	10.3	ING	Y	1cm all arond edjes coating degraded
146	T6610	6610	17	Narrow Band	TAURUS 6610/17	31	txt png ps pdf	50	5.9	ING	Y
147	T6613	6613	24	Narrow Band	TAURUS 6613/15	50	txt png ps pdf	76	13.2	ING	Y	1mm stain off axis reflective side, central stains on coloured side very much reduced. Minor scratching.
148	T6631	6631	17	Narrow Band	TAURUS 6631/17	71	txt png ps pdf	50	6.9	ING	Y
149	T6637	6637	15	Narrow Band	TAURUS 6637/15	33	txt png ps pdf	76	10.3	ING	Y
150	T6652	6652	17	Narrow Band	TAURUS 6652/17	79	txt png ps pdf	50	6.8	ING	Y
151	T6673	6673	15	Narrow Band	TAURUS 6673/15	34	txt png ps pdf	76	10.5	ING	Y
153	T6685	6685	15	Narrow Band	TAURUS 6685/15	30	txt png ps pdf	76	10	ING	Y	concentric pattern on reflective side - needs a scan
154	T6689	6689	15	Narrow Band	TAURUS 6689/15	35	txt png ps pdf	63	6.9	ING	Y	The reflective side is extensively scratched over the central area. Around the edges there is a colour change (to purple), probably coating damage from edge inwards, 2-3mm wide.
156	T6697	6697	15	Narrow Band	TAURUS 6697/15	29	txt png ps pdf	76	9.9	ING	Y
157	T6709	6709	15	Narrow Band	TAURUS 6709/15	32	txt png ps pdf	76	10.2	ING	Y
158	T6721	6721	15	Narrow Band	TAURUS 6721/15	31	txt png ps pdf	76	9.9	ING	Y
159	T6730	6730	50	Narrow Band	TAURUS 6730/50	51	txt png ps pdf	50	6.9	ING	N
160	T6733	6733	15	Narrow Band	TAURUS 6733/15	35	txt png ps pdf	76	10.3	ING	Y
161	T6745	6745	15	Narrow Band	TAURUS 6745/15	35	txt png ps pdf	76	9.9	ING	Y
162	T6757	6757	15	Narrow Band	TAURUS 6757/15	34	txt png ps pdf	76	10.2	ING	Y
163	T6769	6769	15	Narrow Band	TAURUS 6769/15	38	txt png ps pdf	76	9.9	ING	Y
164	T6770	6770	50	Narrow Band	TAURUS 6770/50	50	txt png ps pdf	50	6.8	ING	Y
165	T6781	6781	15	Narrow Band	TAURUS 6781/15	33	txt png ps pdf	76	9.9	ING	Y
166	T6793	6793	15	Narrow Band	TAURUS 6793/15	33	txt png ps pdf	76	9.9	ING	Y	It needs cleaning both sided
168	T6805	6805	15	Narrow Band	TAURUS 6805/15	39	txt png ps pdf	76	10.1	ING	Y
169	T6817	6817	15	Narrow Band	TAURUS 6817/15	37	txt png ps pdf	76	9.9	ING	Y
170	T6829	6829	15	Narrow Band	TAURUS 6829/15	34	txt png ps pdf	76	10	ING	Y
171	T6841	6841	15	Narrow Band	TAURUS 6841/15	34	txt png ps pdf	76	9.9	ING	Y
172	T6853	6853	15	Narrow Band	TAURUS 6853/15	37	txt png ps pdf	76	9.9	ING	Y
173	T6865	6865	15	Narrow Band	TAURUS 6865/15	32	txt png ps pdf	76	10	ING	Y
174	T6877	6877	15	Narrow Band	TAURUS 6877/15	33	txt png ps pdf	76	9.9	ING	Y
175	T6889	6889	15	Narrow Band	TAURUS 6889/15	36	txt png ps pdf	76	10.2	ING	Y
176	O6310	6310	55	Narrow Band	[OI] 6310/55	64	txt png ps pdf	50x50	…	ING	Y
178	STROMU	3518	285	Stromgren	u	40	txt png ps pdf	50x50	8.8	ING	Y	few opaque internal spots.
179	STROMV	4119	178	Stromgren	v	61	txt png ps pdf	50x50	3.8	ING	Y
180	STROMB	4710	210	Stromgren	b	88	txt png ps pdf	50x50	2.8	ING	Y
181	STROMY	5498	225	Stromgren	y	78	txt png ps pdf	50x50	4	ING	Y
182	STROMHbW	4895	175	Stromgren	Hbeta 4861/170	89	txt png ps pdf	50x50	3.1	ING	Y
183	STROMHbN	4879	30	Stromgren	Hbeta 4861/30	67	txt png ps pdf	50x50	2.9	ING	Y
189	T4686	4686	15	Narrow Band	TAURUS 4686/15	47	txt png ps pdf	76	4.8	ING	Y	This filter have some scratches (mainly in the silver side), but some also in the bluer side.
190	RGOU6	3515	746	RGO	U	74	txt png ps pdf	50x50	6.3	ING	N	Several cracks through the entire filter (broken). Withdrawn from use.
216	SloGunR	6228	1322	Sloan Gunn	R	90	txt png ps pdf	50	4.9	ING	Y	Small stains on both sides, not removed by Propanol. Faint dark cloudy pattern in centre of coating visible on one side.
217	SloGunI	7796	1734	Sloan Gunn	I	99	txt png ps pdf	50	3	ING	Y	dirty marks near edge on green (?) side - could not be removed by any solvent
218	SloGunG1	4849	1295	Sloan Gunn	g	89	txt png ps pdf	50	5.7	ING	Y	3 or 4 tiny "pit" marks (~<0.1 mm), small (<1.0 mm) scratches near edge over an area < 2 mm wide, too small to be scanned. <1% loss in transmission w.r.t. original scan (2005).
219	SloGunG2	4850	1257	Sloan Gunn	g	89	txt png ps pdf	50	5.8	ING	Y	One large indelible fingerprint off centre, effect unmeasured, likely small. Transmission peak <1% lower than original scan (2005), bandwidth 14 AA wider.
221	STROMU2	3522	289	Stromgren	U	40	txt png ps pdf	50x50	8.8	ING	Y
230	BESU	3641	593	Bessell	U	58	txt png ps pdf	50x50	5	ING	Y	Finger print in both sides.
231	BESB	4353	999	Bessell	B	62	txt png ps pdf	49.9x49.9	5	ING	Y	Corners suggest rubber from O-ring has adhered to AR coating. Almost completely removed by cleaning. One corner has tiny scratches and pits. Opposite side has residual finger prints that could not be removed even by acetone.
232	BESV	…	890	Bessell	V	…	…	50x50	5	ING	N
233	BESR	…	1360	Bessell	R	…	…	50x50	5	ING	Y	Many small spots or bubbles on filter, may be internal - needs checking or cleaning.
234	BESI	9000	3220	Bessell	I	87	txt png ps pdf	50x50	5	ING	Y
585	MR661	6608	798	Oasis	N/A	88	txt png ps pdf	…	…	ING	N	Faint transparent spots (~5x0.5 mm) on side indented in mount (i.e. the non flush side).
700	SlnU	3482	670	Sloan Gunn	U	83	txt png ps pdf	59.9	4.8	ING	Y	Traces of fingerprints in the central area. Coating damage in form of micro-droplets. Small rectangular area damage to coating near edge, noticed after Ethanol cleaning.
701	SlnG	4660	1351	Sloan Gunn	g	95	txt png ps pdf	60	5	ING	Y	none
702	SlnR	6140	1213	Sloan Gunn	R	96	txt png ps pdf	59.9	4.8	ING	Y	none
703	SlnI	7565	1211	Sloan Gunn	I	95	txt png ps pdf	60	4.8	ING	Y	Insignificantly small residues and marks. See photos: http://www.ing.iac.es/~eng/optics/filters/Photos/703_b4clean_20170213.png and after cleaning: http://www.ing.iac.es/~eng/optics/filters/Photos/703_afterclean_20170213.png
704	SlnZ	8931	1800	Sloan Gunn	Z	98	txt png ps pdf	59.9	4.9	ING	Y	Small mark, about 3mm, possibly fingerprint, on shiny side.
743	Ha_6563/30	6563	30	Narrow Band	Halpha 6563/53	…	…	50	3	ING	Y
744	Ha_6563_30	6563	30	Narrow Band	Halpha 6563/53	…	…	50	3	ING	Y
750	u_Sloan	3557	690	Sloan Gunn	U	97	txt png ps pdf	50	3	ING	N
751	z_Sloan	8931	1800	Sloan Gunn	Z	100	txt png ps pdf	50	3	ING	Y
2060	CN_com	3870	50	Narrow Band	…	…	…	50	9.15	Private	N
2061	C3_com	4060	70	Narrow Band	…	…	…	50	9.15	Private	N
2062	C4430_com	4430	40	Narrow Band	…	…	…	50	9.15	Private	N
2063	C2_com	5125	125	Narrow Band	…	…	…	50	9.15	Private	N
2064	NH2_com	6630	40	Narrow Band	…	…	…	50	9.15	Private	N
2065	C6840_com	6840	90	Narrow Band	…	…	…	50	9.15	Private	N
2727	SLIT_27as	…	100000	Clear	Clear	…	…	6.5x90.3	3	ING	Y	Paint peeling off both sides may cause ghost images
4040	SLIT_40as	…	100000	Clear	Clear	…	…	8.8x101	2.9	ING	Y
7432	H6598_ANDV	6598	17.6	Narrow Band	…	…	…	106	10	Private	N
7433	H6611_ANDV	6611	16	Narrow Band	…	…	…	106	10	Private	N
7434	H6621_ANDV	6621	17	Narrow Band	…	…	…	106	10	Private	N
7435	H6633_ANDV	6633	15.1	Narrow Band	…	…	…	106	10	Private	N
8346	H6577_ANDV	6577	15.5	Narrow Band	…	…	…	106	10	Private	N
8347	H6653_ANDV	6653	16.8	Narrow Band	…	…	…	106	10	Private	N
8348	H6662_ANDV	6662	16.3	Narrow Band	…	…	…	106	10	Private	N
8882	NOT21	6563	30	Narrow Band	Halpha 6563/53	…	…	60	6.2	NOT	Y	Traces of possible coating damage, on reflective side, over ~20 mm of one edge. Faint scratch, traces reduced by cleaning, on absorbing glass (red) side, ~5 mm ~radial.

Contact:  (ING Filters) Last modified: 12 March 2025