Refined and SVBONY SV139 Telescope Moon Filter - 12.5% Transmission, ND8 Neutral Density Filter

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When observing the moon, the bright lunar surface can strain your eyes and potentially cause eye-related issues. The SV139 1.25" Neutral Density (ND) filter offers a solution to this problem by reducing glare, allowing you to view more lunar details and surface features through your telescope.

The SV139 ND0.9 filter is coated on both sides, minimizing scattered light. Crafted from high-definition (HD) optical glass, the filter ensures a good level of light transmittance. With a clear aperture diameter of 26mm, this filter provides a seamless integration with your telescope.

Key Specifications: - Filter Type: Neutral Density - Material: Aluminum Frame, Metal Thread, and Optical Glass - Barrel Diameter: 1.25" - Optical Density Value: 0.9 - Transmission: 12.5% - Thread Size: Standard M28.5 x 0.6mm - Net Weight: 5.0g / 0.19oz / 0.08lb - Glass Thickness: 2mm

Note: Eyepieces are not included.

SVBONY, a young and passionate team, has been developing astronomy and sports optics products since 2014. Our mission is to provide practical optical solutions that enable people to explore the wonders of nature and the night sky.

What makes our products unique? Behind the SVBONY brand is a team of creative, collaborative, and responsible individuals. We've carved out a niche by focusing on delivering realistic and accurate images, rather than just upgrading smartphone cameras.

Why do we love what we do? We believe that optics products are practical and educational, connecting people to the world around them. SVBONY aims to bring the beauty of the cosmos to everyone, allowing them to witness the wonders they would otherwise be unable to see.

The SV139 ND0.9 filter provides great versatility by reducing the amount of light without affecting the color balance. This high-quality optical lens, with its multi-layer coating, offers outstanding image sharpness and perfect color neutrality. The 1.25" barrel diameter allows for easy installation into the eyepiece of various astronomical telescopes, where the moon's brightness can be overwhelming.

Crafted with an aluminum alloy frame and a serrated edge design, the filter is both durable and user-friendly. The ND8 filter, which transmits only 12.5% of the incoming light, can be particularly useful for extended shooting in very bright environments, such as capturing misty, flowing water.

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