The VPL Filter has premium quality metal rim and optics glass lens . Reduce glare and increase contrast of the Moon with the Svbony 1.25”/2'' VPL Filters. Also useful for extra bright planets as well as terrestrial viewing over sand or snow. We provide you with two sizes to choose from, 1.25'' and 2''.

Note: This polarizing filter is too thick and not suitable for SV226 filter drawers. 

• SV406P 20-60X80 Angled ED Extra-Low Dispersion Dual Focus Spotting scope for Bird Watching is designed with extra-low dispersion glass to maintain color authenticity.
• Dual focus makes you to focus more precisely and give you the most perfect experience.
• BAK4 prism and FMC (Fully Multi-Coated) optics, increasing light transmission through the optical path to deliver sharp, crisp and high contrast images.
• Nitrogen-filled, completely waterproof and fogproof. You could enjoy hunting, bird watching interest even in wet weather. It is suitable for nature lovers and birdwatchers.

How to choose eyepieces suitable for SV406P