Lunt LS40-100ERF 40-100mm Energy-Rejection-Filter

1. Critical Solar Safety: This energy-rejection filter is an essential component for safe solar observation, blocking harmful ultraviolet and infrared radiation before it enters the telescope's optical path, protecting both the instrument and the observer.

2. Versatile Compatibility: Designed to fit a range of solar telescopes or front-mounted setups, with available diameters from 43mm to 105mm, making it suitable for apertures from 40mm to 100mm.

3. Optimized Light Transmission: With its broadband AR coating and dielectric IR blocking layer, the filter allows only the desired specific wavelengths of light necessary for solar viewing to pass through, ensuring clear and vibrant images.

4. Precision Engineering: Manufactured with RG630 glass and achieving a <1/4 wave T wavefront accuracy, the filter maintains the optical integrity of your telescope system, crucial for high-resolution solar detailing.

ABOUT THE LS40-100ERF

The Lunt LS40-100ERF Energy-Rejection-Filter series offers critical front-end protection for solar observing setups, distinguishing itself by its wide range of sizes, tailored for specific telescope apertures from 40mm to 100mm. This filter is paramount for diverting unwanted and potentially harmful UV and IR radiation from entering the telescope, thereby safeguarding both delicate internal optical components and, most importantly, the observer’s eye. Its construction features a specialized RG630 glass substrate, combined with a dielectric IR blocking coating on one side and a broadband anti-reflection coating on the other, ensuring maximum safety and optimal light transmission. The exceptional <1/4 wave T wavefront accuracy guarantees that the filter introduces minimal optical aberrations, preserving the image quality of your solar observations. It is an indispensable accessory for sport shooting, scientific research, and dedicated solar astronomy. For prolonged product lifetime and guaranteed performance, always use original accessories and spare parts.

ABOUT LUNT SOLAR SYSTEMS

Lunt Solar Systems, established in Tucson, Arizona, is a world-renowned manufacturer dedicated exclusively to solar observation equipment. Known for their relentless pursuit of optical excellence and innovation, Lunt Solar Systems has become a leading name in specialized solar telescopes and filters. Their products are characterized by their precision engineering, superior safety features, and unmatched optical clarity in solar viewing. The company's philosophy centers on providing astronomers with safe, high-quality instruments to explore the sun's dynamic features, from prominences to sunspots.

MAIN FEATURES

• Filter Diameter Range: Available in sizes from 43mm to 105mm, accommodating 40mm to 100mm aperture solar telescopes.

• Material: Constructed from specialized RG630 glass, optimized for solar energy rejection.

• Thickness: Precision-ground to 3.5mm.

• Coating 1: Features a high-efficiency dielectric IR Blocking Coating on one side to prevent infrared radiation.

• Coating 2: Equipped with a Broadband AR coating on the other side to maximize light transmission and reduce reflections.

• Optical Quality: Achieves a superior wavefront accuracy of <1/4 wave T for excellent optical performance.

IN THE BOX

• 1 x Lunt LS40-100ERF Energy-Rejection-Filter (selected diameter)