Photometric Filter Ø 31 mm BESSEL UBVRI-R Baader Planetarium

PHOTOMETRIC FILTER DIAMETER 31 mm BESSEL UBVRI-R BAADER PLANETARIUM

• Reflex-Blocker ™ coatings, for the greatest freedom from halos, even in the most adverse conditions related to auxiliary optics
• Filter thickness identical to existing standards, with extreme care for parafocality
• Blackened edges all around, with indicator on the filter cable side in the form of a black outer edge on the telescope side, to additionally eliminate any reflections due to light falling on the edge of a filter
• Each filter individually coated, with sealed coating edge (NOT cut from a larger plate with exposed coatings)
• Life-Coat ™: increasingly hard coatings to allow for a coating that will not age for life, even in the harshest environment

TECHNICAL FEATURES

• 31 x 2 mm Baader Bessel-UBVRI-R bandpass filter, suitable from f/15 to f/1.8
• Classic photometric filter with transmission according to Bessel - parfocal with all Baader filters of the same size
• Manufactured with the most advanced ion beam coating / daylight-proof technology
• Reflex-Blocker™ hard-coated and planoptically polished, with sealed coating edges (Life-Coat ™)
• Blackened edges all around, with filter lead-side indicator in the form of a black outer edge on the telescope side
• Suitable for modern CMOS cameras as well as for older CCD camera technologies

MANUFACTURER Baader Planetarium
NET WEIGHT (Kg) 0.06
COLOR Black
TRANSMISSION RANGE Transmission according to Bessel
FILTER THICKNESS (WITHOUT CELL) 2 mm
CWL (CENTER WAVE LENGTH) UBVRI-R
FILTER SIZE 31 mm
FILTER USAGE CMOS, CCD, UBVRI
FILTER MOUNTING Unmounted
FILTER TYPE Bandpass
SINGLE OR CONJUNCTIVE? Single filter
FILTER SHAPE Round

PHOTOMETRIC FILTER DIAMETER 31 mm DIAMETER 31 mm BESSEL UBVRI-R BAADER PLANETARIUM