QHY Q-Focuser - Standard The Standard version of the QHY Q-Focuser is designed to be installed on the course adjustment axis side of the telescope. This is the same with most focusers available in the market. If you are interested in the High Precision version of the Q-Focuser, it would install on the opposite side of the focuser, where the precision adjustment axis lives. The main difference between the Standard & HP version, besides which side of the focuser it is installed, is the type of motor used. The Standard uses a motor with reduction gears, while the Precision version uses a motor without reduction gears. Because of this difference, the focusers perform a bit different in these areas: Size, weight, & cost: Standard is smaller & lighter and costs a bit less Manual focus: HP version supports it, while the Standard does not Backlash: HP version wins here with less backlash to begin with (reduction gears cause some backlash), although it can be calibrated with the use of NINA software. PS: The Q-Focuser does not fit Schmidt-Cassegrain or RASA telescopes. If you'd like to use it on one of these fine telescopes, wait a bit, as we hear an adapter is being developed. The Q-Focuser Standard is very small & lightweight! Its curved surface design provides some extra clearance while weighing just 210g. The Q electronic focuser dimensions are 43 mm x 39mm x 50mm. Its max load is about 10kg. QFocuser features several holes on its bottom and side, providing a variety of fixing methods. Unlike mounting plates with fixed holes, QFocuser adopts a flexible structure where the fixed holes position and mounting plate height can be freely adjusted to achieve the best compatibility with your telescope. Read more about the Q-Focuser... Version QFocuser（Standard Version） QFocuser（High Precision Version） Body Size/mm About 43*39*50 About 43*39*50 (excluding the button） Weight About 210g About 265g Motor Reducing motor Non-reducing motor Backlash It has some backlash, which can be calibrated in software like NINA Almost zero backlash* Max. Loads About 10kg About 7.5kg Manually Focus After Installing Not supported Supported System Supported Windows （ASCOM） Linux External Temperature Sensor Supported Data Interface USB2.0 Type-C Power Supply 5v/12v
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