1.25 Inch 4pcs Telescope Filter Glass Nebula Filters Set Astronomical Telescope Oculares Eyepiece Filter 4 Colors
Yellow Telescope Filter: Yellow (74% transmission) Enhances red and orange features of Jupiter and Saturn, while blocking blue and green wavelengths. It also lightens red and orange features on Mars, while reducing, the transmission of blue and green areas. This filter increases the contrast between the two.
Orange Telescope Filter: Orange (46% transmission) Reduces transmission of blue and green wavelengths, thus increasing the contrast between these areas and red or yellow or orange areas, works very well with Mars. Sharpens the boundaries between these areas on the planet's surface and can sharpen the contrast in the belts of Jupiter also enhancing the Great Red Spot.
Green Telescope Filter: Green (53% transmission) Very good for observing Martian polar ice caps and yellow tinted dust storms on the planet's surface. Also increases the contrast of the red and blue regions in Jupiter's atmosphere and cloud belts.
Blue Telescope Filter: Blue (30% transmission) A magnificent all-round filter. Perhaps the best economical filter for studying planetary detail of Jupiter and Saturn
· Item Type: Filter
· Filters are threaded to fit 1.25" Eyepieces
· Can be used stacked (threads on both sides)
· Material: Metal & Glass
· Filter Size: 1.25"/31.7mm
· Net Weight: 5g/p cs
· Perfect for lunar and planetary observation
· Reduce glare and light scattering
· High quality,solid plane parallel glass
1 x 1.25 "Telescope Filter (Orange Yellow Green Blue -- Choose one.)
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Filed under: Eyepieces & Accessories