Explore Scientific 1.25" UHC Nebula Filter

1. Enhanced Nebula Views: This filter significantly improves the visibility of emission nebulae by isolating their specific light emissions. It works by blocking undesirable wavelengths associated with light pollution, particularly mercury vapor and sodium street lights, while allowing the critical O-III and H-beta lines to pass through with high efficiency. This results in a darker sky background and greater contrast for gaseous nebulae.

2. Precision Optical Coating: Featuring an advanced multi-layer coating process, the Explore Scientific UHC filter provides superior light transmission at the desired wavelengths and excellent blockage of unwanted spectrums. The coatings are applied meticulously to ensure uniform performance across the filter's surface, minimizing scattered light and maximizing contrast.

3. Quality Construction: Encased in a robust, black anodized aluminum cell, this filter is built for durability and precision. The housing is designed to securely thread into standard 1.25" eyepieces and accessories without vignetting, ensuring a stable optical path. Proper care and the use of original accessories contribute to the prolonged lifetime of the product and its optical performance.

4. Versatile Application: While highly effective for deep-sky observation of emission nebulae from suburban or urban locations, the UHC filter also enhances views of these objects from dark-sky sites by improving contrast against the natural skyglow. It is a valuable tool for any amateur astronomer seeking to achieve more detailed and striking views of diffuse nebulae.

ABOUT THE EXPLORE SCIENTIFIC 1.25" UHC NEBULA FILTER

The Explore Scientific 1.25" UHC (Ultra High Contrast) Nebula Filter stands out by offering a unique balance of light transmission and pollution rejection, specifically engineered for observing gaseous and emission nebulae. Unlike broadband light pollution filters that offer general sky darkening, the UHC filter is a narrowband filter that isolates the specific wavelengths emitted by nebulae, notably the O-III (Oxygen III) and H-beta (Hydrogen-beta) lines. This precise filtering allows it to effectively darken the sky background contaminated by urban light pollution, while simultaneously increasing the contrast and visibility of these faint deep-sky objects. Its optical precision ensures minimal distortion and true color rendition for the transmitted light. The filter is designed for astronomers looking to make the most of their observations, enhancing the subtle details and intricate structures within nebulae that would otherwise be lost in the glow of artificial light. Using original accessories and maintaining proper care, such as keeping the filter clean and stored in its protective case, will significantly prolong its optical performance and lifespan.

ABOUT EXPLORE SCIENTIFIC

Explore Scientific, founded by Scott Roberts, is a company based in Springdale, Arkansas, USA, known for its dedication to making high-quality astronomical equipment accessible to enthusiasts worldwide. Established with a philosophy of providing innovation, quality, and value, the brand offers a wide range of telescopes, eyepieces, and accessories. Explore Scientific has built a strong reputation for producing reliable and optically excellent products, empowering astronomers of all levels to explore the cosmos. Their commitment to optical performance and robust mechanical construction ensures that their products stand up to the rigors of frequent use.

MAIN FEATURES

• Filter Type: Ultra High Contrast (UHC) Nebula Filter

• Thread Size: 1.25" standard filter thread, compatible with most 1.25" eyepieces and accessories

• Optical Design: Selectively blocks light pollution while transmitting key nebula emission lines

• Primary Transmission: High transmission at O-III (496nm, 501nm) and H-beta (486nm) wavelengths

• Light Pollution Blocking: Effectively blocks mercury vapor and sodium street light emissions

• Material: Multi-coated optical glass, durable black anodized aluminum cell

• Application: Ideal for observing emission nebulae (e.g., Orion Nebula, Lagoon Nebula) from light-polluted areas

• Dovetail Type: Not applicable (filter)

IN THE BOX

• Explore Scientific 1.25" UHC Nebula Filter

• Protective plastic storage case