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1.25


Color filters


1.25" and 2" red, green, yellow, blue, black, gray filters.

Moon (neutral) filter

The optical filter is made of glass НС-9 in the thickness of 1.5 mm. To pass in visible area of a spectrum approximately 10 … 15 %.

Solar (black) filter

It is intended for Sun supervision. It is made of glass НС-12 in the thickness of 1.5 mm. To pass in visible area of a spectrum no more than 0,0035 … 0,1 %. Optical density D 4.5-5.

Red filter

It is made of glass КС-13 in the thickness of 1.5 mm. Passes red area of a spectrum, detains dark blue, green, yellow and orange.

Green filter

It is made of glass ЗС-3 in the thickness of 1.5 mm.

Blue filter

It is made of glass СЗС-22 in the thickness of 1.5 mm. Passes violet and green area of a spectrum.

Yellow filter

It is made of glass ЖС-18 in the thickness of 1.5 mm. Passes partially green, yellow, orange and red colors of a spectrum. Doesn't pass violet and dark blue colors.


contact information

Phone:
007(383)216-08-76
007(383)226-07-65
Phone/Fax:
007(383)226-15-94
179/2, D. Kovalchuk str.,
Novosibirsk, 630049, Russia

branches in Russia

St. Petersburg:
spb@npzoptics.ru
Moscow:
msk@npzoptics.ru

customer service

Questions:
info@npzoptics.ru
Quality and service:
service@npzoptics.ru
Sales in Russia:
salesru@npzoptics.ru
Export operations:
sales@npzoptics.ru

technical support

admin@npzoptics.ru
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