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GSO Planetview Filters 2" - Full Set of 5 Filters
6510 + 18% GST
Veteran astronomers are convinced that planetary observations are almost always dramatically improved by colour filters. Earth’s atmosphere is in constant fluctuation: turbulent air currents blur fine surface detail on solar system objects viewed through a telescope. Faint contrasting area blend together due to “irradiation” - a distortion of the boundaries between light and dark surfaces. Using planet view filters, the scattering of interfering wavelengths is enormously reduced. With filters the smeared, pale bands of Jupiter resolve into loops and festoons. Delicate markings appear on Saturn’s globe, and the Cassini ring division darkens and solidifies, Mar’s Polar caps stand out like tiny pearls, and the Lunar rills acquire greater depths and contrast. Bad seeing becomes acceptable; good “seeing” becomes superb. For Visual use simply thread these filters into the 2" eyepiece barrel of any imported or Super Astro Eyepiece / Plossl Eyepiece.
GSO 2" #21 Orange Filter
1380 + 18% GST
Dust storms on Mars
Loops, festoons, and ovals on Jupiter
GSO 2" #58A GREEN Filter
1380 + 18% GST
Contrast of blue and red structures on Jupiter
Melt lines around Martian polar ice caps
GSO 2" #12 YELLOW Filter
1380 + 18% GST
Polar ice caps on Mars
Festoon features on Jupiter
GSO 2" #25 RED Filter
1380 + 18% GST
Contrast and cloud definition of Venus
Bluish cloud regions of Jupiter and Saturn
GSO 2" #80A MEDIUM BLUE Filter
1380 + 18% GST
Details of Jupiter's cloud belts and Great Red Spot