Dark-Sky Filter 77mm Slim Cozy Earth because using averted vision puts

because using averted vision puts the image on a part of your eye that is more sensitive to light

SN0108-Ecru

The bowl cover fits a bowl up to 16inches

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Dark-Sky Filter 77mm Slim Cozy Earth because using averted vision putsUniversally applicable dark sky filter with 77mm filter thread for photo lenses. Particularly suitable for increasing contrast in aurora and deep sky photography. The wavelengths of 550nm (green) and 630nm (red), which are particularly relevant for aurora photography, are transmitted to more than 90%. A special feature of other so called CLS filters is that only the yellow light of the sodium line is effectively blocked at 590nmwill. This effectively