Orion 05514e Telescope filter

3.175 cm (1.25 ") Basic Set of Four Color Filters Color eyepiece filters enhance subtle details on the planets, comets, and the Moon by selectively increasing the contrast between markings of different hues. This affordable 1.25" Orion Basic Set of Four Color Filters includes our most popular color planetary telescope eyepiece filters: #15 Deep Yellow, #25 Red, #58 Green, and #80A Medium Blue. These filters are vat-dyed for even color coating and then anti-reflection coated for maximum transmission. The eyepiece filter cells are made of anodized aluminum and are double-threaded to permit filter stacking. A protective plastic filter case is included.

- Handy color planetary telescope eyepiece filters help enhance your view of the planets and Moon, unveiling specific features and enabling you to discern more detail;
- High-grade Schott optical glass is vat-dyed for even color coating, then anti-reflection coated for maximum light throughput;
- Anodized aluminum cells are double-threaded to permit filter stacking for multiple filter use
- Includes #15 Deep Yellow, #25 Red, #58 Green and #80A Medium Blue color filters;
- Each filter has a metal filter cell and is threaded for use with Orion 1.25" telescope eyepieces and filter-threaded accessories.

Here's a brief summary describing some of the planetary features each color eyepiece filter will help enhance:

#15 Deep Yellow Planetary Filter (67% Transmission)
- Red and orange features of Saturn and Jupiter;
- Contrast of lunar surface features;
- Polar caps and orange desert regions of Mars;
- Low-contrast cloud detail on Venus.

#25 Red (14% Transmission)
- Martian surface detail in larger telescopes;
- Contrast of Mercury against blue sky;
- Contrast and cloud definition of Venus;
- Bluish cloud regions of Jupiter and Saturn.

#58 Green (24% Transmission)
- Lunar surface detail;
- Contrast of blue and red structures on Jupiter, including The Great Red Spot;
- Melt lines around Martian polar ice caps;
- Contrast of Saturn's subtle cloud belts.

#80A Medium Blue (30% Transmission)
- Details of Jupiters cloud belts and Great Red Spot;
- High clouds and polar caps of Mars;
- Lunar surface deatils;
- Contrast of some comet tails.