#21 Orange (46% transmission) – reduces transmission of blue-green wavelengths.
Use on Jupiter and Saturn to enhance detail in the belts and polar regions.
Sharpens boundaries between yellow-orange areas and blue-green regions on Mars, resulting in a darkening of edge-detail in the maria.
High-quality metal frame, includes a storage case.
This filter is available as part of our best selling Ostara 7 Piece Filter Set