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The Advanced VX 8 EdgeHD pairs Celestron's 8-inch f/10 EdgeHD Schmidt-Cassegrain tube with the Advanced VX German equatorial mount. The EdgeHD optics correct coma and field curvature for a flat field across the frame, and the tube adds vents with 60-micron mesh filters plus a removable secondary for Fastar f/2.8 imaging. The mount carries integer gear ratios, permanent periodic error correction, an autoguider port and a latitude range of 7 to 77 degrees. It suits visual observers and beginning deep-sky imagers who want one package, though the long focal length and modest payload class make it a demanding first imaging rig compared with shorter refractors.
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Owners of the Advanced VX 8 EdgeHD generally praise the flat, well-corrected EdgeHD field and the mount's tracking for the class. Many note the setup weight and the learning curve of the equatorial mount, and imagers say the long focal length demands good guiding.
The Advanced VX 8" EdgeHD pairs an 8-inch (203.2 mm) f/10 EdgeHD optical tube with the Advanced VX computerized mount. The EdgeHD design fully corrects for coma and field curvature and delivers a flat field, so stars stay sharp to the edge of the sensor. StarBright XLT coatings improve light transmission.
The tube has built-in vents with integrated 60 micron mesh filters that let hot air escape behind the primary mirror. It is Fastar compatible, and its removable secondary mirror allows fast f/2.8 imaging. A camera can be attached to the rear of the telescope to shoot at f/10, or an 8-inch focal reducer can be used to shoot at f/7. The tube also works with Hyperstar.
The Advanced VX mount has larger base castings for stability under heavier loads. Its improved motors give more torque and handle slight load imbalances. The mount supports All-Star Polar Alignment, an autoguider port, and permanently programmable Periodic Error Correction, which removes recurring worm gear tracking errors. The motor housings stay clear of the telescope, so you can view or image across the meridian without a meridian flip. The mount works between 7 and 77 degrees latitude. The NexStar+ hand control offers programming in English, French, Italian, German and Spanish.
