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Explore Scientific

Explore Scientific Neutral Density 0.9 Filter 2-Inch – 310240

Explore Scientific Neutral Density 0.9 Filter 2-Inch – 310240

$119.99
$119.99
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Shipping calculated at checkout.

The Explore Scientific Neutral Density 0.9 2-inch Filter is designed to uniformly reduce light transmission across the visible spectrum without introducing color shift. With a density value of 0.9, this filter reduces brightness by approximately 87%, making it ideal for observing bright targets such as the Moon, Venus, and Jupiter while maintaining natural image color and sharpness.

Key Features

  • Neutral Density 0.9 Rating: Provides even brightness reduction without affecting color balance.

  • Improved Viewing Comfort: Reduces glare and eye strain when observing bright celestial objects.

  • Preserves Image Detail: Maintains sharpness and contrast while controlling excessive light.

  • High Transmission Optical Coatings: Precision coatings ensure uniform attenuation across the spectrum.

  • Precision Optical Glass: Optically polished substrates deliver clear, distortion-free views.

  • Durable 2-Inch Filter Cell: Precision-machined, threaded metal housing fits standard 2-inch eyepieces, diagonals, filter wheels, and imaging accessories.

Specifications

  • Filter Type: Neutral Density (ND)

  • Density: 0.9

  • Light Reduction: Approximately 87%

  • Barrel Size: 2-inch

  • Primary Use: Lunar and planetary observation

  • Optical Construction: Multi-coated optical glass

  • Compatibility: Fits standard 2-inch eyepieces, diagonals, filter wheels, and imaging accessories

  • SKU: 310240

Why It Matters
Bright objects can overwhelm the eye and obscure fine detail. The Explore Scientific Neutral Density 0.9 2-inch filter provides balanced light reduction while preserving natural color and image quality, making it an essential accessory for comfortable high-magnification observing.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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