La Maison de l'Astronomie
La meilleure sélection d'instruments depuis plus de 30 ans au Québec – Montréal
179.95 $
The H-Alpha CCD filter, is designed for CCD imaging of gas and planetary nebulae. Due to the narrow bandpass of the H-Alpha line at 656 nm, the filter provides maximal increase in contrast even under poor observing conditions. The 13 nm bandwidth allows us to achieve transmission as high as 97%–a value that is impossible to reach with filters of narrower bandwidth.
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The H-Alpha CCD filter, is designed for CCD imaging of gas and planetary nebulae. Due to the narrow bandpass of the H-Alpha line at 656 nm, the filter provides maximal increase in contrast even under poor observing conditions. The 13 nm bandwidth allows us to achieve transmission as high as 97%–a value that is impossible to reach with filters of narrower bandwidth.
Le Ciel du Mois par Claude Duplessis
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