Baader O-III 8.5nm
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Baader O-III 8.5nm

agenaastro.com/.../baader-2-narrowband-o-iii-8-5nm-ccd-filter.html
TypeOxygen-III (OIII)
Bandwidth8.5 nm
SizeOther
Users 345
Images 2236
Most often used with
ZWO ASI1600MM
Also available in the following variants:
1.25"
2"
31 mm
36 mm
50 mm
50x50 mm
65x65 mm