Celestron Reducer Lens .7x - EdgeHD 9.25"

Before diving into the world of astrophotography, consider the Reducer Lens. 7x - EdgeHD 925. This lens is specifically designed to increase your field of view by 43%, making it ideal for capturing wide field images of larger galaxies and nebulae. The EdgeHD 925 reducer lens features a custom 4-element optical design, meticulously engineered to maintain the flat-field performance of Celestron's award-winning EdgeHD optical system. Unlike generic reducers, this premium lens ensures substantial back focus, accommodating a wide array of imaging accessories. The high index optical elements of the EdgeHD 925 reducer lens include extra low dispersion and exotic Lanthanum elements.

These elements are key in providing high contrast viewing and minimizing chromatic aberration, ensuring your images are clear and vibrant. All air-to-glass lens surfaces of the EdgeHD 925 reducer lens are fully multi-coated. This feature ensures maximum light transmission and color correction, enhancing the quality of your astrophotography. The lens elements also have blackened edges to minimize internal reflection and maximize image contrast, further improving your viewing experience. The EdgeHD 925 reducer lens boasts a computer-assisted CNC machined aluminum housing. This precise spacing and alignment of optical elements ensure optimal performance.

Additionally, the lens assembly features threaded metal covers to protect your investment from dust and scratches. The lens threads directly onto the 3.25" threads of the EdgeHD optical tube, reducing mechanical vignetting and allowing for use with larger (full frame) sensors and Off-Axis Guiders. The clear aperture of the lens is optimized for a 42 mm image circle, perfect for use with large CCD sensors. With the Fastar option on all EdgeHD optical systems, coupled with the. 7x reducer, your telescope becomes a comprehensive imaging system. This reducer lens is not only one full F-Stop faster than f/10, reducing the exposure time by half to capture the same brightness of an object, but it also maintains the same back focus as when used at f/10.

This allows for the use of existing EdgeHD T-Adapters and other Celestron imaging accessories, making the EdgeHD 925 reducer lens a versatile addition to your astrophotography equipment.