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  • Baader H-alpha 3.5nm 50,8mm filter Baader H-alpha 3.5nm 50,8mm filter

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for order at least €500

Baader H-alpha 3.5nm 50,8mm filter

Product code: BP2459454

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Quick Overview

Baader H-alpha 3.5nm filter is a precision grade enforced H-alpha filter for f/10 to f/3.5 optical systems and it opens up the extremely narrow 3,5nm H-alpha world. This enforced contrast results in even fainter stars, providing more signal of faintest nebulae detail.

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€405.00
22% tax incl
if you pay by bank transfer €392.85

Details

Manufacturing such ultra-narrow filter does require extreme coating homogeneity and very high CWL precision, which these filters are designed for. Note: In general this DeepSky enforced H-alpha Filter is not suitable for solar observation. The Halfbandwidth of 3,5nm equals 35 Ångstroem, high-quality H-alpha solar filter from SolarSpectrum start at 0.8 Ångstroem.

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