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Large selection of telescopes and accessories - for beginners and professionals


Sale
EXPLORE SCIENTIFIC Filter 1.25" Orange No.21
Filter 1.25" Orange No.21
14,90 € 8,00 € * Shipping Weight 0.036 kg
Sale
Color Filter Set Essential 1,25" Red,Green,Blue,Yellow
Color Filter Set Red,Green,Blue,Yellow
9,90 € 5,00 € * Shipping Weight 0.03 kg
Sale
EXPLORE SCIENTIFIC 1.25" Filter Grey ND0.9
EXPLORE SCIENTIFIC 1.25" ND0.9 Gray Filter reduces brightness and increases contrast for accurate observation of bright objects
25,00 € 18,00 € * Shipping Weight 0.035 kg
Sale
EXPLORE SCIENTIFIC Filter 1.25" Green No.56
Filter 1.25" Green No.56
14,90 € 8,00 € * Shipping Weight 0.036 kg
Sale
EXPLORE SCIENTIFIC Filter 1.25" Blue No.80A
Filter 1.25" Blue No.80A
14,90 € 8,00 € * Shipping Weight 0.036 kg
Sale
EXPLORE SCIENTIFIC Filter Set 2 Moon & Planets from 100mm (4")
Filter Set 2 Moon & Planets from 100mm (4")
45,00 € 23,00 € * Shipping Weight 0.2 kg
Sale
EXPLORE SCIENTIFIC Filter 1.25" Yellow No.12
Filter 1.25" Yellow No.12
14,90 € 8,00 € * Shipping Weight 0.036 kg
Sale
EXPLORE SCIENTIFIC 2" Variable Polarizing Filter
2" variable polarizing filter
79,00 € 57,00 € * Shipping Weight 0.27 kg
Sale
EXPLORE SCIENTIFIC Filter Set 3 Moon & Planets from 150mm (6")
Filter Set 3 Moon & Planets from 150mm (6")
45,00 € 23,00 € * Shipping Weight 0.2 kg
Sale
EXPLORE SCIENTIFIC Filter 1.25" Light Yellow No.8
Filter 1.25" Light Yellow No.8
14,90 € 8,00 € * Shipping Weight 0.036 kg

Telescope-Filters

Filters are a popular tool in the field of solar and planetary observation. They increase the contrast for certain details that are poorly or not at all to see without a filter. Basically, there are two problems with the observation: (1) over-exposure, the boundary between two regions of the observed object with different brightness "fraying" or simply blurred because the eye is overwhelmed with the contrast in bright light; and (2) adjacent areas have similar coloring, but only small differences in intensity. Both effects cause that the combination of eye-brain can no longer separate details and thus tries to show both objects as a single one.

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