ANTLIA ENERGY REJECTION FILTER 150mm TOE H๐ผ transmission
USD668.50
USD707.50
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Ships within 48 hours ยท Estimated delivery Aug 22 - Aug 27
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ANTLIA ENERGY REJECTION FILTER 150mm TOE H๐ผ transmissionThe Antlia 150mm Energy Rejection Filter is a multi coated dualband filter designed to reject the majority of light at both ends of the spectrum, with two narrow transmission windows of only 25nm half bandwidth around the H alpha and Calcium K & H lines. This enables safe usage of H alpha and Calcium solar filters with telescopes by preventing as much extra energy as possible from entering the telescope. The 130mm ERF is suitable for use on telescopes
Store: www.slt-gutachten.at ยท Domain: www.slt-gutachten.at
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