STS28.5 Series

With high telecentricity and low distortion, BASSON bi-telecentric lenses are mainly applied to precision measurement and high-precision visual positioning fields.
BASSON STS28.5 Series Standard Bi-telecentric Lenses are standard F/M58-mount lenses, available for industrial cameras with maximum sensor size of 28.5mm (diagonal of 28.5mm).

lActual measured with full range of DOF, full range of FOV, and full range of wave length

lAvailable for Industrial Cameras with Sensor Size from 1/3” to 35Full

lLarge FOV from 11.5mm-315mm

lDistortion: <0.05% Telecentricity: <0.05°

lTG+ multi-layer coating, high transmittance

lOptions between high resolution and deep DOF are available

lCustomized aperture is available

lWorking distance can be adjusted within certain limits

lIndustrial grade waterproofing

Data

Lenses with High Resolution

Model	Magnification	WD（mm）	Object Side Resolution（μm）	DOF（mm）	NA	Actural Measured Telecentricity（°）	Actural Measured Distortion（%）	APS-C			28.5mm			Lens Mount
								H	V	D	H	V	D
								22.3	16.7	27.9	22.8	17.1	28.5
STS28025050F	1.140	50±1	5.30	0.35	0.0633	＜0.05	＜0.05	19	14	24	20	15	25	F
STS28035060F	0.814	60±5	7.42	0.68	0.0452	＜0.05	＜0.05	27	20	34	28	21	35	F
STS28045070F	0.633	70±5	9.54	1.12	0.0352	＜0.05	＜0.05	35	26	44	36	27	45	F
STS28060080F	0.475	80±5	12.71	1.99	0.0264	＜0.05	＜0.05	47	35	58	48	36	60	F
STS28070150F	0.407	150±5	14.83	2.71	0.0226	＜0.05	＜0.05	54	41	68	56	42	70	F
STS28085125F	0.335	125±5	18.01	4.00	0.0186	＜0.05	＜0.05	66	50	83	68	51	85	F
STS28105160F	0.271	160±5	22.25	6.11	0.0151	＜0.05	＜0.05	82	61	102	84	63	105	F
STS28125200F	0.228	200±5	26.49	8.66	0.0127	＜0.05	＜0.05	98	73	122	100	75	125	F
STS28155320F	0.184	320±5	32.84	13.31	0.0102	＜0.05	＜0.05	121	91	152	124	93	155	F
STS28155320FL	0.184	320±5	32.84	13.31	0.0102	＜0.05	＜0.05	121	91	152	124	93	155	F
STS28185320F	0.154	320±5	39.20	18.96	0.0086	＜0.05	＜0.05	145	108	181	148	111	185	F
STS28185320FL	0.154	320±5	39.20	18.96	0.0086	＜0.05	＜0.05	145	108	181	148	111	185	F
STS28215380F	0.133	380±5	45.56	25.61	0.0074	＜0.05	＜0.05	168	126	210	172	129	215	F
STS28215380FL	0.133	380±5	45.56	25.61	0.0074	＜0.05	＜0.05	168	126	210	172	129	215	F
STS28245380F	0.116	380±5	51.91	33.25	0.0065	＜0.05	＜0.05	192	144	240	196	147	245	F
STS28245380FL	0.116	380±5	51.91	33.25	0.0065	＜0.05	＜0.05	192	144	240	196	147	245	F
STS28270480F	0.106	480±5	57.21	40.39	0.0059	＜0.05	＜0.05	211	158	264	216	162	270	F
STS28270480FL	0.106	480±5	57.21	40.39	0.0059	＜0.05	＜0.05	211	158	264	216	162	270	F
STS28315545F	0.090	545±5	66.75	54.97	0.0050	＜0.05	＜0.05	247	185	308	252	189	315	F

Lenses with Deep DOF

Model	Magnification	WD（mm）	Object Side Resolution（μm）	DOF（mm）	NA	Actural Measured Telecentricity（°）	Actural Measured Distortion（%）	APS-C			28.5mm			Lens Mount
								H	V	D	H	V	D
								22.3	16.7	27.9	22.8	17.1	28.5
STS28025050F-D	1.140	50±1	9.42	0.62	0.0356	＜0.05	＜0.05	19	14	24	20	15	25	F
STS28035060F-D	0.814	60±5	13.18	1.21	0.0255	＜0.05	＜0.05	27	20	34	28	21	35	F
STS28045070F-D	0.633	70±5	16.95	1.99	0.0198	＜0.05	＜0.05	35	26	44	36	27	45	F
STS28060080F-D	0.475	80±5	22.60	3.55	0.0148	＜0.05	＜0.05	47	35	58	48	36	60	F
STS28070150F-D	0.407	150±5	26.37	4.83	0.0127	＜0.05	＜0.05	54	41	68	56	42	70	F
STS28085150F-D	0.335	150±5	32.02	7.12	0.0105	＜0.05	＜0.05	66	50	83	68	51	85	F
STS28105160F-D	0.271	160±5	39.55	10.86	0.0085	＜0.05	＜0.05	82	61	102	84	63	105	F
STS28125200F-D	0.228	200±5	47.09	15.39	0.0071	＜0.05	＜0.05	98	73	122	100	75	125	F
STS28155320F-D	0.184	320±5	58.39	23.66	0.0058	＜0.05	＜0.05	121	91	152	124	93	155	F
STS28155320FL-D	0.184	320±5	58.39	23.66	0.0058	＜0.05	＜0.05	121	91	152	124	93	155	F
STS28185320F-D	0.154	320±5	69.69	33.71	0.0048	＜0.05	＜0.05	145	108	181	148	111	185	F
STS28185320FL-D	0.154	320±5	69.69	33.71	0.0048	＜0.05	＜0.05	145	108	181	148	111	185	F
STS28215380F-D	0.133	380±5	80.99	45.53	0.0041	＜0.05	＜0.05	168	126	210	172	129	215	F
STS28215380FL-D	0.133	380±5	80.99	45.53	0.0041	＜0.05	＜0.05	168	126	210	172	129	215	F
STS28245380F-D	0.116	380±5	92.29	59.12	0.0036	＜0.05	＜0.05	192	144	240	196	147	245	F
STS28245380FL-D	0.116	380±5	92.29	59.12	0.0036	＜0.05	＜0.05	192	144	240	196	147	245	F
STS28270480F-D	0.106	480±5	101.71	71.80	0.0033	＜0.05	＜0.05	211	158	264	216	162	270	F
STS28270480FL-D	0.106	480±5	101.71	71.80	0.0033	＜0.05	＜0.05	211	158	264	216	162	270	F
STS28315545F-D	0.090	545±5	118.66	97.73	0.0028	＜0.05	＜0.05	247	185	308	252	189	315	F

Basson focuses on machine vision products used for precision measurement and defect detection.

Basson not only provides high-precision bi-telecentric lens systems, telecentric lens systems, telecentric light sources, coaxial illuminations and optical lenses, but also offers customized services.

With products designed in Germany, business planned in the UK and products made in China, Basson is able to provide superior products to customers through its global team. Currently, Basson is in preparation of production and assembly of products in Japan.

Dr. Liu Lu, acting as CTO of Basson, is a PhD degree holder of Oxford University.

Production and testing instruments include optical vacuum coating machines manufactured by Satis in Switzerland and Leybold in Germany, a laser interferometer from Zygo in the US, a spectrophotometer from PerkinElmer in the US, a spherometer from Hofbauer Optik in Germany, a centering instrument from Kyoritsu Electric in Japan, a NC grinding device made by Kojima Engineering in Japan and an automatic centering machine made by Shonan in Japan.