Baader UBVRI Photometric B-Filter

£153.00
SKU 2459440B

Availability: Immediate Dispatch

  • Baader UBVRI - B-Filter
  • Photometric Johnson/Bessel filter system
  • Partial dielectric design with BBAR minimised reflections
  • Plane-optically polished, 4mm glass thickness
  • non-ageing sealed coating edges
Description

These Baader Planetarium UBVRI filters are based on the Johnson/Bessel photometric filter system. 

Johnson/Bessel UBVRI System

Each filter is 4mm in thickness and they are plane-optically polished, with a partial dielectric coating to minimise reflections. They, like other Baader filters, have non-ageing, sealed edge coatings for long life usage.

Specification
WEIGHT (KG) 0.03
TRANSMISSION RANGE Transmission range after Johnson/Bessel
FILTER THICKNESS (WITHOUT CELL) 4 mm
CWL (CENTRAL WAVELENGTH) Bessel B
AR-COATING dielectrically coated, plane-optically polished
FILTER USAGE Specialty: UBVRI Photometry
TYPE OF FILTER Bandpass
SINGLE OR SET Single Filter