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Sale! Astrodon Photometric Filter Type B Diam. 31.8 mm Mounted In Cell View larger

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Astrodon Photometric Filter Type B Diam. 31.8 mm Mounted In Cell

Astrodon Photometric Filter Type B Diam. 31.8 mm Mounted In Cell

Filter Photometric Astrodon Type B With A Diameter Of 31.8 mm Mounted In The Cell.

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Astrodon Photometric Filter Type B Diam. 31.8 mm Mounted In Cell

Astrodon

AS-B_27R

New product

Filter Photometric Astrodon Type B With A Diameter Of 31.8 mm Mounted In The Cell.

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239,00 €

-19,00 €

258,00 €

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Filters UVBRcIc use the classic standard photometric defined by Johnson in 1950 and subsequently improved by Cousins ​​in 1990. Until now the photometric filters with this standard were colored filters Schott, but to better suit modern ccd and to maintain strict standard J / C, the Astrodon used treatments for narrow bandwidth filters and R (calling Ic and Rc, with the c indicating that the standard is rospettato Cousins).

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