Name: BT-23 Series Bi-telecentric Lens
Brand: LEITH PTE. LTD.

Specifications of BT-23 Series Bi-telecentric Lens

Model No.	Magnification	Working Distance (mm)	Aperture (f/#)	Telecentricity	Field Of View (mm)			Optical	Depth Of Field	Mount	Dimension	Weight

				(°)	（H×V）			Distortion	(mm)		(mm)	(kg)
LEITH-BT2307	1.333	61	F11	<0.08	1/3"	3.6	2.7	<0.05%	0.5	C	φ28x92	0.185
					1/2"	4.8	3.6
					2/3"	6.6	5
LEITH-BT2309	1	63	F11	<0.08	1/3"	4.8	3.6	<0.06%	0.9	C	φ28x85	0.175
					1/2"	6.4	4.8
					2/3"	8.8	6.6
LEITH-BT2316	0.528	45.3	F8	<0.06	4	9.1	6.8	<0.06%	1	C	φ38x93.3	0.26
					1/2"	12.1	9.1
					2/3"	16.7	12.5
LEITH-BT2316A	0.5	65	F6	0.25	1/2"	12.8	9.6	0.01%	2.7	C	φ36x105.1	/
					1/1.8"	14.4	10.6
					2/3"	16.9	14.14
LEITH-BT2316B	0.5	65	F6	0.26	1/2"	12.8	9.6	0.00%	2.7	C	φ36x102.1	/
					1/1.8"	14.4	10.6
					2/3"	16.9	14.14
LEITH-BT2316C	0.5	110	/	<0.1	1/2"	12.8	9.6	<0.01%	3	C	φ41x155.24	/
					1/1.7"	15	10.6
					1/1.8"	14.2	14.2
					2/3"	16.8	11.2
LEITH-BT2316D	0.5	178	F7	0.12	1/2"	12.8	9.6	0.04%	3.1	C	φ52x218.6	/
					1/1.8"	14.4	10.6
					2/3"	16.9	14.14
LEITH-BT2316E	0.5	178	F7	0.12	1/2"	12.8	9.6	0.04%	3.1	C	φ52x216	/
						14.4	10.6
						16.9	14.14
LEITH-BT2320	0.42	90	F10	<0.02	1/3"	11.4	8.6	<0.06%	3	C	φ40x118.18	0.445
					1/2"	15.2	11.4
					2/3"	20.9	15.7
LEITH-BT2321	0.4	110	F28	<0.1	1/3"	12	9	<0.01%	3	C	Φ28.0 x 97	/
					1/2"	16	12
					2/3"	21	17.7
LEITH-BT2322	0.4	110	F10	0.1	1/2"	16	12	0.02%	6.8	C	φ49x114.4	/
					1/1.8"	18	13.25
					2/3"	21.13	17.68
LEITH-BT2323	0.36	130	/	<0.1%	1"CMV4000	31.3	31.3	<0.01%	3	C	Φ65 x 159	/
					1"lMX255	39.4	20.9
					1"lMX183	36.5	24.3
					2/3"	23.3	19.7
LEITH-BT2325	0.35	69	F8	<0.08	1/3"	13.7	10.3	<0.06%	2.5	C	φ44x154	0.445
					1/2"	18.3	13.7
					2/3"	25.1	18.9
LEITH-BT2328	0.3	110	F6.5-F21.3	0.03	1/2"	21.33	16	0.08%	8-26.2	C	φ60x121.7	/
					1/1.8"	24	17.67
					2/3"	28.17	23.57
LEITH-BT2328A	0.3	65	F10	0.05	1/2"	21.33	16	0.04%	12.5	C	φ56x139.1	/
					1/1.8"	24	17.67
					2/3"	28.17	23.57
LEITH-BT2334	0.244	120	F8	0.03	1/2"	26.23	19.67	0.07%	14.8	C	φ70x153.9	/
					1/1.8"	29.51	21.72
					2/3"	34.63	28.98
LEITH-BT2336	0.243	103.5	F8	<0.04	1/3"	19.8	14.8	<0.08%	6	C	φ61x143.5	0.56
						26.3	19.8
					2/3"	36.2	27.2
LEITH-BT2342	0.2	138	F8	0.04	1/2"	32	24	0.04%	22	C	φ79x196.8	/
					1/1.8"	36	26.5
					2/3"	42.25	35.35
LEITH-BT2345	0.183	165	/	<0.1%	1/3"	26.2	19.7	<0.01%	3.00%	C	φ80x151.55	/
					1/1.8"	38.8	29
					2/3"	45.9	38.8
LEITH-BT2348	0.184	134.6	F8	<0.08	1/3"	26.1	19.6	<0.08%	10	C	φ75x164.5	0.77
					1/2"	34.8	26.1
					2/3"	47.8	35.9
LEITH-BT2348A	0.184	134.6	F8	<0.08	1/3"	26.1	19.6	<0.08%	10	C	110x98x123.5	/
					1/2"	34.8	26.1
					2/3"	47.8	35.9
LEITH-BT2350	0.169	160	F8	0.03	1/2"	37.87	28.4	0.06%	30.8	C	φ90x212.5	/
					1/1.8"	42.6	31.36
					2/3"	50	41.83
LEITH-BT2356	0.157	159.3	F8	<0.05	1/3"	30.6	22.9	<0.06%	13.5	C	φ88x178	0.915
					1/2"	40.8	30.6
					2/3"	56	42
LEITH-BT2361	0.138	180	F8	0.03	1/2"	46.38	34.78	0.06%	46.5	C	φ104x247.1	/
					1/1.8"	52.17	38.41
					2/3"	61.23	21.23
LEITH-BT2364	0.138	182.3	F8	<0.05	1/3"	34.8	26.1	<0.08%	18	C	φ100x274.3	1.775
					1/2"	46.4	34.8
					2/3"	63.8	47.8
LEITH-BT2370	0.12	250	F8	0.04	1/2"	53.33	40	0.07%	60.9	C	φ120x271.9	/
					1/1.8"	60	44.17
					2/3"	70.42	58.92
LEITH-BT2380	0.11	227	F8	<0.04	1/3"	43.5	32.6	<0.07%	52	C	φ120x301.2	1.71
					1/2"	58	43.5
					2/3"	79.8	59.8
LEITH-BT2380A	0.11	100	F6	<0.05	1/3"	43.6	32.7	<0.05%	10	C	196x158x158	/
					1/2"	58.2	43.6
					2/3"	80	60
LEITH-BT2384	0.1	250	F8	0.04	1/2"	64	48	0.07%	88.2	C	φ130x321.1	/
					1/1.8"	72	53
					2/3"	84.5	70.7
LEITH-BT2393	0.09	260	F8	0.04	1/2"	71.77	53.33	0.06%	108.1	C	φ166x359.8	/
					1/1.8"	80	58.89
					2/3"	93.89	78.56
LEITH-BT2395	0.093	279.6	F8	<0.06	1/3"	51.6	38.7	<0.07%	40	C	φ142x355.2	3.335
					1/2"	68.8	51.6
					2/3"	94.6	71
LEITH-BT2395A	0.088	120	/	<0.1%	1/3"	54.5	40.9	<0.1%	10.00%	C	Φ65 x 159	/
					1/1.8"	80.7	60.2
					2/3"	95.5	80.7
LEITH-BT23105	0.08	280	F8	0.04	1/2"	80	60	0.07%	136.2	C	φ166x367.8	/
					1/1.8"	90	66.25
					2/3"	105.63	88.38
LEITH-BT23105A	0.08	250	/	<0.1%	1/3"	60	45	<0.1%	10	C	Φ175 x 321.1	/
					1/1.8"	88.8	66.3
					2/3"	105	88.8
LEITH-BT23115	0.073	330	/	<0.1%	1/3"	65.8	49.3	<0.1%	15	C	Φ240 x 426.63	/
					1/1.8"	97.3	72.6
					2/3"	115.1	97.3
LEITH-BT23116	0.0725	320	F8	0.04	1/2"	88.28	66.21	0.07%	166.7	C	φ180x406.9	/
					1/1.8"	99.31	73.1
					2/3"	116.55	97.52
LEITH-BT23122	0.072	336.5	F8	<0.07	1/3"	66.7	50	<0.07%	80	C	φ171x388	3.3
					1/2"	88.9	66.7
					2/3"	122.2	91.7
LEITH-BT23122A	0.072	336.5	F8	<0.06	1/3"	66.7	50	<0.07%	80	C	210x180x320.5	/
					1/2"	88.9	66.7
					2/3"	122.2	91.7
LEITH-BT23144	0.061	398	F8	<0.05	1/3"	78.7	59	<0.08%	90	C	φ200x458.1	7.615
					1/2"	104.9	78.7
					2/3"	144.3	108.2
LEITH-BT23144A	0.061	398	F8	<0.05	1/3"	78.7	59	<0.08%	90	C	277x210x368.	/
					1/2"	104.9	78.7
					2/3"	144.3	108.2
LEITH-BT23173	0.051	531	F8	<0.05	1/3"	94.1	70.6	<0.06%	140	C	φ260x715	17.3
					1/2"	125.5	94.1
					2/3"	172.5	129.4
LEITH-BT23192	0.046	531	F8	<0.06	1/3"	104.3	78.3	<0.06%	160	C	φ260x712.1	17.195
					1/2"	139.1	104.3
					2/3"	191.3	143.5
LEITH-BT23140	0.06	398	F8	0.04	1/2"	106.67	80	0.07%	238.9	C	φ210x454.8	/
					1/1.8"	120	88.33
					2/3"	140.83	117.83
LEITH-BT23149	0.0565	400	F8	0.04	1/2"	113.27	84.96	0.07%	273	C	φ222x481.2	/
					1/1.8"	127.43	93.81
					2/3"	149.56	125.13
LEITH-BT23182	0.0462	410	F8	0.04	1/2"	138.53	103.9	0.06%	392.8	C	φ270x629.3	/
					1/1.8"	155.84	114.72
					2/3"	182.9	153.03
LEITH-BT23205	0.0411	410	F8	0.04	1/2"	155.72	116.79	0.07%	484.6	C	φ300x687.9	/
					1/1.8"	175.18	128.95
					2/3"	205.6	172.02
LEITH-BT23238	0.0355	500	F8	0.04	1/2"	180.28	135.21	0.07%	666.1	C	φ340x754.2	/
					1/1.8"	202.82	149.3
					2/3"	238.03	199.15
LEITH-BT23268	0.0315	540	F8	0.05	1/2"	203.17	152.38	0.07%	817.6	C	φ376x826.4	/
					1/1.8"	228.57	168.25
					2/3"	268.25	224.44
LEITH-BT23299	0.0282	700	F8	0.04	1/2"	226.95	170.21	0.07%	1028.8	C	φ430x1046.7	/
					1/1.8"	255.32	187.94
					2/3"	299.65	250.71

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