Products : Neutral Density Filters (ND) : HOYA CANDEO OPTRONICS CORPORATION

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Neutral Density Filters ( ND )

	These filters possess level spectral transmittance characteristics in the visible region independent of wavelength. They are ideal for exposure control in color photography, and are also used for light control in other measuring instruments. They are designed to uphold designated performance capabilities through controlling the thickness. The following 17 types of neutral density filters are available as standard items in 50-mm squares in addition to the 7 types of items listed in the table of material properties.

	ND01 / ND03 / ND10 / ND20 / ND40 / ND70 / ND0.1 / ND3 / ND13 ND25 / ND50 / ND80 / ND0.3 / ND5 / ND15 / ND30 / ND60

Transmittance

ND13-70

Use our transmittance simulation software for further information on transmittance.

Neutral Density Filter: Data

Item / Name		Standard value	Color specification (Standard illuminants A) Thickness		Thick-ness	Reflective index	Chemical properties		Thermal properties				Mechanical properties		Specific gravity
Item / Name		Tav (%)	x	y	mm	600nm	DW	DA	Tg	Ts	α -30/ 70	α 100/ 300	HK	FA	d
	ND0	<0.01	—	—	(2.5)	1.555	2	1	542	622	—	76	—	—	2.47
	ND0.1	0.1±0.05	—	—	(3.1)	1.513	1	3	490	565	—	65	530	100	2.41
	ND0.3	0.3±0.05	—	—	(2.9)	1.513	1	3	490	565	—	65	530	100	2.41
	ND1	1±0.5	—	—	(2.3)	1.514	1	3	490	565	—	65	530	100	2.41
	ND3	3±0.5	0.460	0.405	(1.7)	1.516	1	3	490	565	—	65	530	100	2.41
	ND5	5±1	0.458	0.406	(1.5)	1.516	1	3	490	565	—	65	530	100	2.41
	ND10	10±2	0.447	0.420	(3.0)	1.516	1	3	490	565	—	65	530	100	2.41
	ND13	12.5±2	0.447	0.419	(2.7)	1.516	1	1	535	595	58	68	530	100	2.43
	ND15	15±2	0.447	0.418	(2.5)	1.521	1	1	535	595	58	68	530	100	2.43
	ND20	20±2	0.443	0.420	(3.1)	1.513	1	1	535	595	58	68	530	100	2.43
	ND25	25±2.5	0.444	0.418	(2.7)	1.516	1	2	535	600	62	66	550	100	2.42
	ND30	30±3	0.444	0.417	(2.3)	1.517	1	2	535	600	62	66	550	100	2.42
	ND40	40±4	0.448	0.413	(2.5)	1.506	2	3	525	570	61	65	550	100	2.42
	ND50	50±5	0.448	0.412	(2.5)	1.505	2	4	495	555	62	66	550	90	2.42
	ND60	60±5	0.448	0.413	(1.6)	1.509	2	4	495	555	62	66	550	90	2.42
	ND70	70±5	0.448	0.411	(2.9)	1.504	4	5	470	540	66	72	510	100	2.39
	ND80	80±5	0.448	0.409	(1.2)	1.512	4	5	470	540	66	72	510	100	2.39


	* The listed data are standard values. As we are always improving our products, the data listed are subject to change without notice.


		Explanation about the specification values in the tables is displayed.

		Explanation about the items other than specification values in the tables is displayed.

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