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BARIUM FLUORIDE (BaF2) BICONVEX LENS
Design Wavelength :6.0 microns Effective focal Length :+ 2% at design wavelength Clear Aperture :90% diameter Edge thickness Variation : 0.025 mm Diameter Tolerance :+0, -025 mm Bevel :0.25 mm Surface Irregularity :1 Lambda at sodium light Surface Quality :40-20
Diameter(mm)	F#	Effective Focal Length (mm)	Back Focal Length (mm)	Part Number	Price
12.70	1	12.70	9.73	1216-BF	$275
	2	25.40	23.72	1226-BF	200
	3	38.10	36.81	1236-BF	162
	4	50.80	48.62	1246-BF	162
	5	63.50	62.50	1256-BF	162
	6	76.20	75.27	1266-BF	162
	8	101.60	100.76	1286-BF	162
	10	127.00	126.17	12106-BF	162
	12	152.40	151.56	12126-BF	162
	20	254.00	253.15	12206-BF	162
19.05	1	19.05	14.34	1916-BF	$300
	2	38.10	36.00	1926-BF	250
	3	57.15	55.43	1936-BF	233
	4	76.20	73.33	1946-BF	180
	5	95.25	94.04	1956-BF	180
	6	114.30	113.23	1966-BF	180
	8	152.40	151.33	1986-BF	180
	10	190.50	189.43	19106-BF	180
	12	228.60	227.52	19126-BF	180
	20	381.00	379.92	19206-BF	180
25.40	1	25.40	21.70	2516-BF	$325
	1.5	38.40	35.02	251.5-BF	300
	2	50.80	48.90	2526-BF	270
	3	76.20	74.58	2536-BF	204
	4	101.60	99.92	2546-BF	195
	5	127.00	125.54	2556-BF	195
	6	152.40	150.94	2566-BF	195
	8	203.20	201.75	2586-BF	195
	10	254.00	252.55	25106-BF	195
	12	304.80	303.34	25126-BF	195
	20	508.00	506.55	25206-BF	195
38.10	1	38.10	29.42	3816-BF	$555
	2	76.20	72.12	3826-BF	450
	3	114.30	111.37	3836-BF	345
	4	152.40	149.96	3846-BF	275
	5	190.50	188.41	3856-BF	275
	6	228.60	226.67	3866-BF	275
	8	304.80	303.23	3886-BF	275
	10	381.00	379.50	38106-BF	275
	12	457.20	455.77	38126-BF	275
	20	762.00	760.59	38206-BF	275
50.80	1	50.80	45.21	5016-BF	$1030
	2	101.60	97.79	5026-BF	820
	3	152.40	149.50	5036-BF	675
	4	203.20	200.84	5046-BF	600
	5	254.00	251.22	5056-BF	600
	6	304.80	302.95	5066-BF	500
	8	406.40	404.78	5086-BF	500
	10	508.00	506.51	50106-BF	500
	12	609.60	608.12	50126-BF	500
	20	1016.00	1014.65	50206-BF	500