Reveal the Hidden Details of the Lunar Surface
Observing the Full Moon through a telescope can be overwhelmingly bright, causing glare and temporary loss of dark-adapted vision. The SV139 ND 3.0 Filter acts like high-end sunglasses for your telescope. By transmitting only 0.1% of incoming light, it reduces glare significantly, allowing you to see sharp details of craters, rilles, and Maria (seas) even during the Full Moon phase.
HD Optical Glass
Ensures sharp, undistorted images for high-magnification viewing.
Aluminum Frame
Precision-machined metal cell with standard M28.5*0.6 threads.
Protect Vision
Reduces light radiation and protects your eyes from intense lunar glare.
| Parameter | Detail |
|---|---|
| Model | SV139 ND3.0 (W9108D) |
| Filter Type | Neutral Density (ND) |
| Transmission | 0.1% (Ideal for Full Moon) |
| Optical Density | 3.0 |
| Barrel Diameter | 1.25 inch |
| Thread | Standard M28.5*0.6 |
| Glass Thickness | 2mm |
Pro Tip: Use ND 3.0 for the Full Moon, while ND 0.6 or 0.9 is better for crescent and quarter phases.
| Brand | SVBony |