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BAADER BESSEL B PHOTOMETRIC FILTER Size:36mm 5″ and 2

BAADER BESSEL B PHOTOMETRIC FILTER Size:36mm 5″ and 2

Name: BAADER BESSEL B PHOTOMETRIC FILTER Size:36mm 5″ and 2
Brand: www.drbramiyohan.com
SKU: 77743639795
Price: 119.50 USD
Availability: InStock
Rating: 4.7641 (22 reviews)

SKU: 77743639795

4.8

USD119.50 USD161.50

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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

Live Spec

BAADER BESSEL B PHOTOMETRIC FILTER Size:36mm 5″ and 2The Baader Bessel B filter is a precision grade photometric bandpass filter with a central wavelength window between 400 500nm. The UBVRI system was developed in the 1950s for the 0. 9m McDonald Observatory telescope and initially consisted of a Johnson UBV filter set, later extended by Cousins to include the R and I filters for the red region of the spectrum. The filters of the extended UBVRI system according to Johnson and Cousins include: U

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Description

5″ and 2

8mm) while maintaining an optical thickness of 1

You can even use UV-filters (such as the Baader U-Venus-filter) or IR-pass-filters and achieve surprisingly good contrast

8kg fully assembled

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