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Red (610nm), orange (570nm), green (500nm), yellow (495nm), dark blue (435nm), blue (470nm), PGC - Multi-coating

These color filters provide the highest levels of image brightness and freedom from scattered light, combined with uncompromising image sharpness at the high magnifications required to observe delicate planetary details.

All surfaces are polished to exacting tolerances of flatness and parallelism to far surpass the performance of "flame-polished" substrates employed in typical economy filters. All surfaces feature 7-layer multi-coatings that reduce reflective losses to a mere 0.25%.


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