), then you will need to adjust the tightness of the altitude axis. To assess this, load the OTA with all your normal pieces of kit, (e.g. The OTA should stop immediately with no further downward movement. View online or download Celestron NexStar 130SLT Instruction Manual One word of caution: When you bring the OTA back to the horizontal, keep a "hovering hand" just below it just in case it does have a tendency to drop further once the direction key has been released. It seems to be needed a slightest touch of the hand to make it rotate up or down. Start here to find the perfect telescope for you! 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The MC firmware can be updated by the owner (read this). There are processors in the hand control (HC) and there are processors in the base of the scope in a section known as the motor control (MC). However it does not specify altitude only, but I've been leery of trying to move it in azimuth as I've heard you'll strip gears if you do that. As I have said elsewhere on SGL, I was expecting and duly received a Celestron 127 Nexstar Mak Goto 'scope from my family for my birthday last Saturday - lucky me! There have been two versions of hand control available for the SLT: Hand control version 4.X. I'm very pleased with it and got the best price from Harrison's. Manuals and User Guides for Celestron 127SLT. This hand control can be updated by the owner. INSTRUCTION MANUAL NexStar 90 MAK . Nearly Full Moon – 4-panel Mosaic – 11/28/2020, 21:45am EST, Help Identifying vintage (?) Or are there any screws somewhere I can tighten to make it less "hand operational" or at least harder to move with hand? Community Forum Software by IP.BoardLicensed to: Cloudy Nights, This is not recommended for shared computers, Back to Celestron Computerized Telescopes. Several functions may not work. (help needed) - posted in Celestron Computerized Telescopes: Dear Sirs/Madams, New owner of used Celestron Nexstar 127 SLT. There can be a tendency at these temperatures (0C/32F), for the adjustment to slacken. Now, if necessary, carry out the "drop test" described above, once again. All seem to work nicely now! You cannot move the 127 SLT in azimuth, (left to right or right to left) unless you are connected to your power supply and you use the hand control directional keys. The NexStar ushers in a whole new generation of computer automated technology. In other words, fit the OTA to the mount saddle so that it is forward of the mark you have made in establishing its centre of gravity). NexStar SLT scopes have two sets of processors. The upgradeable hand control ships as standard equipment on the CPC, NexStar SE and NexStar SLT… NexStar SE; NexStar SLT; Omni XLT; Omni XLT AZ; PowerSeeker; RASA; SkyProdigy; StarSense Explorer; Travel Scope; Top Accessories . Astronomy. Nexstar slt . It’s compatible with all Celestron’s latest accessories, including StarSense AutoAlign, SkyPortal WiFi module, and PowerTank Lithium. Advanced Series 130mm Maksutov - no manual yet available from Celestron's web site, but the ED refractor manual above should work well for the mount features CGEM Series NexStar+ Hand Control Addendum - from Celestron, explaining the differences between this newer hand control and the previous versions (button functions, etc.) I'm not an expert but SGL is full of advice on the best scopes for DSO and also mounts. When you've establishes this, mark its position and then transfer the assembly to the mount, placing the OTA such that it gives you a small but significant fore-end weight bias. New; Over $500; Under $500; Clearance; Celestron Outlet; View All; Check these out. View and Download Celestron 127SLT user manual online. However, from what you say, it sounds as if the slipping clutch is in need of adjustment, (i.e. Make small incremental adjustments to this, placing the loaded OTA back and forth on the saddle and testing it according to the procedure I provided. If the OTA does continue to descend under its own weight, then adjustment will be necessary. Slow Motion Knobs: Useful or a waste of weight? In February 2005, Celestron introduced NexStar hand control version 4. Also for: Nexstar 90slt, Nexstar 127 mak, Nexstar 90 mak, Nexstar slt. diagonal, eyepiece, dew shield, red dot finder, etc), and then elevate it as far as it will go without contacting the base of the mount. Accessories Celestron 21020 Communication Protocol Manual 8 pages. Nexstar hand control. Thank you Tel - adjustment completed! How easy to completely remove TV-85 & 102 focusers. Telescope Celestron NexStar 80 Instruction Manual 48 pages. However, the 127 scope is not ideal as it has a long focal length (1500mm) and very narrow field of view. Moving onto the specs of the device, the 127SLT’s aperture is 127mm, it’s focal length is 1500mm resulting in a focal ratio of f/12. tightening). In contrast, the altitude axis, (up and down), can be moved by hand because it has a slipping clutch mechanism which is designed to prevent damage to the altitude drive should the optical assembly tube (the OTA or 'scope itself), accidentally hit the base of the mount, but again, it should only be moved up and down under power from the hand controller, (the HC). 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