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Baader Planetarium UV-IR-Cut Filter
NIB - 1.25" Baader Planetarium UV-IR-Cut Filter
- Extremely Sharp Cutoff at 690nm (leaves all the visible red, including the important 656nm H-alpha emission line).
- Sharp cutoff below 400nm. Eliminates violet halos around bright stars (more effectively than simpler so-called Minus Violet photographic filters).
$80 + Postage
Last edited by Hans Tucker; 27-01-2011 at 08:20 AM.
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