Thousand Oaks Nebular Filter 2" Lp-4 H-beta Reviews
Enhance your deep sky viewing with the latest in multi-layer coating technology. Over three years in development. Our filters transmit desired wave-lengths in a very steep slope vs. gentle transition slopes in competitive brands. This means better contrast and overall performance. LP-4 Hydrogen Beta (Red Cell) For Horsehead, California nebula and other faint nebulae.
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Mar 17, 2011 13:41:04
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