Daystar ♦ daystarfilters.com 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 filter in the field. FULL-FIELD AUTOGUIDING Innovations Foresight ♦ innovationsforesight.com The SkyGuide software program is ASCOMcompliant 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 field for tracking, thus improving the overall signal-to-noise ratio (a huge benefit when there are no bright stars in the field) 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 find 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 first we've seen that requires zero additional back focus without changing a telescope's magnification. As such, it will work with any telescope and matching eyepiece combination that already reaches focus without the viewer. Optec wrote the book on temperaturecompensated focusers that automatically keep cameras in perfect focus as telescope optics vary because of changing nighttime temperatures. Its new TCF-Leo Low-Profile 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 BACKG R O UND TE X T U R E: V IJAY K U M A R / D IG ITA LV IS IO N V ECTO R S / G E T T Y IM AG ES SOLAR TELESCOPE 31http://www.daystarfilters.com http://www.innovationsforesight.com http://www.oriontelescopes.com http://www.optecinc.com http://www.skyandtelescope.com