Baader Bessel-B
Filter
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Baader Bessel-B

baader-planetarium.com/.../baader-ubvri-bessel-filter-set-%E2%80%93-photometric.html
TypePhotometric Blue
Bandwidthn/a
SizeOther
Users 17
Images 123
Most often used with
ZWO ASI2600MM Pro
Known retailers High Point Scientific
Also available in the following variants:
100x100 mm
1.25"
2"
31 mm
36 mm
50 mm
50x50 mm
65x65 mm