Celestron 0.7x Reducer Lens for EdgeHD 1400 Telescope

The Celestron 0.7x Reducer Lens features a custom 5-element optical design and is engineered to maintain the flat-field performance of the EdgeHD 1400 aplanatic Schmidt optical tube assembly (OTA). This reducer lens provides a substantial 5.75" back focus to accommodate an assortment of imaging accessories. It offers high index optical elements, including extra low dispersion, Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air-to-glass surfaces are treated with multiple layers of anti-reflection coatings for maximum light transmission and color correction, and the interior of the housing has blackened edges to minimize internal reflection and further enhance image contrast.

The reducer lens features large-diameter lens elements and up to 60mm clear aperture, which ensure that the image circle remains at a generous 42mm for use with large CCD sensors. The mechanical design incorporates a computer-assisted CNC machined aluminum housing for precise spacing and alignment of optical elements and threaded metal covers on the lens assembly to protect your lens from dust and scratches.

Glass

• The EdgeHD Reducer Lens uses rare earth Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration
• All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction
• All lens elements have blackened edges to minimize internal reflection and maximize contrast

Full Frame Design

• Threads directly onto the 3.25" threads of the EdgeHD Optical Tube, which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
• 60mm clear aperture lens optimized for a 42mm image circle for use with large CCD sensors

Mechanical Design

• Computer-assisted CNC machined aluminum housing for precise spacing and alignment of optical elements
• Threaded metal covers for both ends of the lens assembly to protect your lens from unwanted dust and scratches

Celestron 0.7xReducer Lens for EdgeHD 1400 OTA