Nebula filter Moon filter set of 7 pieces Large aperture suitable for 1.25 inch/31.7mm eyepieces

Applicable interface: 1.25 inches/31.7mm
Lens optical glass diameter: 27mm
Thread specification: M28.6 * 0.6mm（standard）
Mirror frame material: aluminum alloy
Note: Can it be used for M28.5 * 0.6mm threads? Yes

This product does not include telescope eyepieces

Compared, this product has larger lenses

Yellow：Used to observe polar ice sheets on Mars for clearer observation of desert land on the planet's surface, it can increase contrast and make details more prominent. When observing Jupiter, it can darken the blue stripes of Jupiter's equator and make the red and orange features more detailed.

Orange：Used to improve the contrast between light and dark when observing space, able to penetrate clouds, observe Mars sandstorms, and observe Jupiter's Great Red Spot. The effect is very good.

Red：Used to observe Mercury and Venus. Using a large aperture astronomical telescope through a red plate can provide a clearer view of Jupiter's sideband, and observing Saturn's surface can reveal more details.

Green：Observe polar projections, frost spots, and surface fog on the surface of Mars. It is a great accessory for observing Saturn's rings and Jupiter's belts, and also a universal piece for observing the moon.

Blue：Used to observe the small structure of star clusters, making the image details clearer.

Purple：It can penetrate the vapor layer, penetrate the ionosphere, and observe deeper and farther in polluted skies, especially when observing star clusters to reduce the influence of stray light and search for unfamiliar new stars.