My first Magazine Sky & Telescope - 01.2019 | Page 33

SOLAR TELESCOPE FULL-FIELD AUTOGUIDING Daystar ♦ daystarfilters.com Innovations Foresight ♦ innovationsforesight.com The SkyGuide software program is ASCOM- compliant and works with Maxim DL to eliminate the need to single out one star to track in the image from your autoguiding camera. Rather, the software uses advanced algorithms to analyze the entire i eld for tracking, thus improving the overall signal-to-noise ratio (a huge benei t when there are no bright stars in the i eld) and minimizing guiding errors caused by seeing-induced star motion. U.S. price: from $675 U.S. price: $50 ZERO BACK FOCUS BINOVIEWER LOW-PROFILE FOCUSER FOR IMAGING Orion Telescopes & Binoculars ♦ oriontelescopes.com Optec ♦ optecinc.com You don’t have to hunt far on the internet to i nd observers waxing poetic about using binoviewers for two-eyed gazing through telescopes. What makes the new Premium Linear BinoViewer for Telescopes special is that it’s the i rst we’ve seen that requires zero additional back focus without changing a telescope’s magnii cation. As such, it will work with any telescope and matching eyepiece combination that already reaches focus without the viewer. Optec wrote the book on temperature- compensated focusers that automatically keep cameras in perfect focus as telescope optics vary because of changing nighttime temperatures. Its new TCF-Leo Low-Proi le Focuser has a robust 3-inch aperture and is designed to work with telescopes that have tight restrictions on the distance between the focuser’s mounting point and the camera’s detector (for example, the Celestron EdgeHD models). U.S. price: $499.99 U.S. price: $1,295 sk yandtele scope.com • JA N UA RY 2 019 Daystar’s new SS60-ds Solar Scout offers one of the best price-to-performance ratios we’ve ever seen for a scope that delivers tunable sub-angstrom hydrogen-alpha views of the Sun. The 60-mm scope is designed for visual and photographic work, and there’s an optional $200 bundle that includes a 1¼-inch diagonal and 25-mm eyepiece, universal AC adapter, and a rechargeable battery for powering the scope’s Quark i lter in the i eld. 31