About this product
Single Polarizing Filter (not variable).
A single polarising filter will reduce glare and enhance contrast when observing planets but it is most useful when combined with a Herschel Wedge for solar observing.
When using with a Herschel wedge screw the filter into a 1.25" eyepiece then simply rotate the eyepiece to adjust brightness.
Premium optical glass with anti-reflection coatings and a neutral density (doesn't affect colour).
IMPORTANT: Do not use this polarisation filter to observe the Sun without a Herschel Wedge. Immediate eye damage will result.
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