Description
Features:
- Color filters will enhance your view of the planets and Moon, enabling you to see more detail
- High-grade Schott optical glass is vat-dyed for even color coating, then anti-reflection coated
- Anodized aluminum cells are double-threaded to permit filter stacking
- Includes #15 Deep Yellow, #25 Red, #58 Green and #80A Medium Blue
- 1.25†diameter
Made from high-grade Hoya optical glass, each is vat-dyed for even color distribution and then fully antireflection coated. The glass is held in an anodized aluminum cell labeled with the appropriate Wratten filter number. The cell is double-threaded to permit threading of the filter into the barrel of an eyepiece as well as the stacking of filters for additional filtration options.
Use the #15 Deep Yellow Planetary Filter for:
- red and orange features on Saturn, Jupiter, and Mars
- contrast of lunar features
- low-contrast cloud detail on Venus
Use the #25 Red Planetary Filter for:
- Martian surface details in large scopes
- bluish cloud regions on Jupiter and Saturn
- contrast of Mercury against blue sky
- cloud definition on Venus
Use the #58 Green Planetary Filter for:
- contrast of blue and red structures on Jupiter (including Red Spot)
- melt lines around Martian polar ice caps
- Saturn's cloud belts
Use the #80A Medium Blue Planetary Filter for:
- details in Jupiter's cloud belts and Red Spot
- high clouds and polar caps on Mars
- lunar surface details
- Venus cloud features
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