Baader Planetarium Contrast Booster Filter for 2" Eyepieces

Discover the transformative power of the Baader Planetarium Contrast Booster Filter for 2" eyepieces. This high-quality, innovative filter is more than just a simple minus-violet filter. It's an effective tool for enhancing contrast and reducing skyglow to the maximum level possible, making it an essential addition to your astronomy gear bag.

Based on the renowned Baader Moon & Skyglow filter, the Contrast Booster Filter takes image clarity to new heights. It not only significantly enhances planetary and lunar contrasts but also eliminates the distracting blue de-focused haze often found in achromatic refractors. Say goodbye to the annoying blue halo and obscuring haze that compromise resolution and contrast.

This durable filter boosts subtle contrasts and colors while displaying the full resolution your telescope is capable of. It combines a special proprietary melt of Neodymium glass with a meticulously designed 23-layer dielectric long-pass blocker on one face and a 7-layer ultra-low anti-reflection coating on the other. By filtering out the defocused blue wavelengths, a light yellow tint is imparted to objects, less than a typical yellow filter, preserving the true colors and contrasts of celestial bodies.

With over 95% transmission across key portions of the visible spectrum, including H-Alpha, this filter retains the colors and color contrasts in challenging subjects like Jupiter, without causing excessive image dimming. The result is a more striking contrast, with cloud bands retaining their ruddy red hues and the Great Red Spot becoming more prominent. Planets and lunar landscapes are set against a jet black sky, enhancing your astronomical viewing experience.

The Contrast Booster Filter is also ideal for solar observing when used with Baader Astro Solar, and it's a popular choice for viewing Mars. All types of telescopes, including reflectors and apochromats, benefit from the RGB filtration plus blue blocking. For digital imagers, simply add the Baader UV-IR-Cut Filter when needed.

The true 1/4 wave fine optically polished surfaces guarantee the sharpness and contrast of the image. The base substrate is a special custom melt of Neodymium-doped glass, designed for specific transmission characteristics and made exclusively for Baader Planetarium. With its unique spectral characteristics and Baader's hallmark optical and mechanical features, the Contrast Booster Filter offers the best possible image sharpness, contrast, and real-world durability. Experience the difference with this user-friendly, versatile filter.