Baader Planetarium ND 1,8 2 T=2% Filter ( 2458331) all astro filters opinie

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Gray filter produced by Baader Planetarium with a transmission of 2% and a diameter of ø=2". Designed for advanced and demanding users. Made with high accuracy and the only gray filter in our offer covered with anti-reflection coatings The Phantom Group does not show any reflections when observing bright objects. The optical density of the filter is OD=1.8, which means a transmission of 2%. Equipped with a standard 2" filter thread on both sides. The height of the filter cell is 8.2 mm (0.33"). The active aperture of the filter is 45.8 mm (1.8").

Spectrally neutral ND filters allow you to attenuate the light coming from very bright objects such as the Sun, Moon, planets and bright stars. Reducing the glare of objects visible in the eyepiece allows for better distinction of visible details. The filter is suitable for lunar and planetary observations as well as for separating bright and close binary star systems. The 2% filter is best for inner planetary observations, separating double and multiple stars.

Technical parameters

• type: broadband, neutral density
• frame: 2"
• transmission: 2%
• substrate: glass
• layers: MC
• weight: 66g

Guarantee

24 months