celestron focuser backlash
Working one axis at a time, adjust both the positive It fits into the focus shaft of the telescope for smooth control and fine focusing. Also the backlash compensation in the ASCOM / INDIGO / INDI driver settings. . With the focus motor installed, you can bring celestial objects into sharp, precise focus using your telescope's hand controller or a computer instead of using the focuser knob. In A setting of 0 uses all the detected stars in the FOV. Motor controls include multiple speed rates, automatic GoTo indexed focuser position, and focuser backlash compensation. ZWO EAF Bracket for Celestron C8/C9.25/C11/C14 (this part is defined as optional accessories for ZWO EAF) This bracket is designed to work with C8, C9, C11 and C14 the Celestron SCT scopes. (This orientation can vary depending upon the rate you are using and the current set too high. I use the Celestron Focus Motor on my EdgeHD 8" and 0.7x focal reducer. This book is for the aging amateur astronomy population, including newcomers to astronomy in their retirement and hobbyists who loved peering through a telescope as a child. Currently my AF works exceptionally well and I have not tweaked it in months. - The Celestron focal reducer manual says for imaging once you have good focus in the center you should back out CCW 1/24 (~41). It is CNC milled from an aircraft graded aluminum block. For example, if you are in the Focus fast, reliable and accurate your Celestron SCT telescope by using the "FocusCube Zero".The evolution of technology in astronomy requires a system which will assist the focusing of the telescope with great accuracy. Hi, I realized everytime I try to focus an image in my telescope, the image in the eyepiece shift as the focus is racked in and out. The other thing I recommend is to set your sequence to perform an AF roughly every 20 to 30 minutes once you have started. Enables electronic focusing. This essentially sets up a frame similar to the following screen grab from the NINA AF instruction manual (although my center area is significantly smaller than that shown below): I got it working last night but had to use a step size of 10, much less than 25. When the brightest 10 stars were used, it was more of a W curve, perhaps even a double W curve. Is it possible that you have entered a backlash number in the "Backlash Settings" of the Celestron Focuser Utility? This fast and zero backlash stepper motor has the required torque to focus of your SCT telescope with great precision. for the altitude and azimuth axis on each scope. Found inside – Page 57nating a box of pixels that is five pixels wide , and four Focuser Issues pixels high . ... In image 20 , the brightest pixel is much Celestron SCT , have geared focusing or digital readout . brighter than the surrounding pixels . on all newer models. Celestron Focuser Utility: https://youtu.be/5oop_DFdcDE. I do wonder whether of not the long focal length (2500 for planetary imaging) changes the game significantly. This book offers a comprehensive introductory guide to "choosing and using" a series LXD55 or LXD75 computer-controlled ("goto") telescope, containing a wealth of useful information for both beginners and more advanced practical amateur ... Software Update History. cause immediate movement without resulting in a pronounced jump when pressing or Just depends where the play is in your mechanism. Noisy Celestron Focuser Motor and backlash setting no longer in CPWI - posted in Equipment: Hello all. I was out last night and found another very nice way to improve my AF. Which one is appropriate for my SCT? Normally the positive and negative values on either Next I command the reverse, 21000 to 21500. The movement is clockwise overshooting by 500 and returns with a counter-clockwise move. If someone could repeat this test and report back the results it would be very helpful. altitude axis requires the positive and negative values to be set to 30. Edited by Rac19, 09 October 2020 - 04:08 PM. You've given 5755 steps/revolution of the focus motor. Found inside – Page 318Still many problems connected with ture Carl - Zeiss Cassegrain reflector in mid - seventies ; backlash in the gear ... These are al The next large telescope project undertaken by the most invariably of Celestron - 14 model , which has ... This guide is ideal for astrophotographers who wish to develop their skills using DSLR cameras and as a friendly introduction to amateur astronomers or photographers curious about photographing the night sky. DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging, Community Forum Software by IP.BoardLicensed to: Cloudy Nights, This is not recommended for shared computers, Back to Celestron Computerized Telescopes, Leica HC Plan S 10x/25 bino pair - first impression. Set the RATE value to the one you use move often when manually slewing the scope Set the RATE value to the one you use move often when manually slewing the scope This book gives readers the benefit of Harris’s many years of experience as both a professional astronomer and owner of Meade LX telescopes, including the top end LX400. Next time I might reduce the gain/exposure to suit a selected bright star. I read that it is the inherent design issue with rack and pinion, but is there any simple way to at least improve it? will be no jump when you release the button even if you have the compensation Positive and Negative to 0 and the Alt Positive and Negative to 0. Set the Azm It makes sense not to use the very center of the frame to focus since it can skew the results. This book serves as a comprehensive guide for using a Nexstar Evolution mount with WiFi SkyPortal control, walking the reader through the process for aligning and operating the system from a tablet or smartphone. This book first tells the fascinating story of the early scientific expeditions to observe transits. It then explains how to observe transits of all sorts - even transits of aircraft as they fly between the observer and the Sun. This produced a reasonable U curve and moved the focus by 31 counts, not very much. All moves end in counter-clockwise rotation. Found insideThis is a dualknob focuser that fits on the original focuser shaftof Celestron 8in and 11in SCTs. One knob focuses normally; theother knob provides a 10:1 ... Onefactor that can affect trackingin all models istheanti backlash setting. If the focus is rough or loose, it may be the cap and not the mechanism. The delay caused by backlash is noticeable when using the arrow buttons to I tried excluding the bright star (which was used for initial focus with a Bahtinov mask) from the FOV, but that didn't help. I think that I have observed the same with 100/0 set in NINA but will watch it more closely next time. and down. pressing an arrow button. Check description for full list. Slew rates for the mount and focuser persist when the dialog is hidden/closed. Bug Fix: CGX (L) USB port programming. Enables autofocusing with a camera and third-party software via ASCOM. Craig Zerbe features information about video astronomy. Focuser Utility software for Windows provides a simple user . Focuser Utility software for Windows provides a simple user . Pegasus FocusCube Zero - Celestron SCT, EdgeHD & RASA. Assuming you have put in the mirror diagonal into the visual back and and eyepiece in at the opposite end, you simply need to focus with the rubber knob, rotating it either left or right, until the object you are looking at comes into focus (for example, the moon). I got to thinking about it and most of my targets either have central nebulosity, blown out stars in central globulars, or galaxies with bright cores. Buy Celestron Focus Motor v2 for SCT and EdgeHD OTAs featuring Precise Focusing with Zero Backlash, Servo Motor with Microprocessor, Low, Medium, High Focus Speeds, Use with Mount's Hand Controller, External PC Control via USB Cable, ASCOM Compatible. I just completed a version of the focuser for use on a Celestron CGE 1400. Point Zero allows backlash free movement and is way faster than older motor. The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. performance. The external focuser assembly then threads directly onto the 2" or the 3.25"/3.28" male SCT threads on rear of the telescope. There is some focus drift with temperature - so you will want to focus every half hour or so. It fits into the focus shaft of the telescope for smooth control and fine focusing. You can directly connect it to the scopes without using the feather touch focusers. 2.7.9144. With the focus motor installed, you can bring celestial objects into sharp, precise focus using your telescope's hand controller or a computer instead of using the focuser knob. If you note a jump when Thanks. Found inside – Page 114... ultra - smooth anti - backlash focus mechanism ; giant 9x60mm illuminated - reticle polar - alignment viewfinder with quick - disconnect ... ( 800 ) 843-4780 SUPER CELESTRON POLARIS C8 CELESTRON POWERSTAR II CELESTRON The SP. This book lifts the veil of mystery from the creation of deep space photographs and makes astrophotography affordable and accessible to most amateur astronomers. >> FocusCube SCT has been replaced by the Focus Cube Zero. What does this Newtonian Diffraction Pattern indicate? As before, I command 21000 to 21500. For Newtonian Reflector OTAs. I'm going to go lobby for that feature on the Discord group. But NO OVERSHOOT occurred. Might help for others. I have a question regarding Auto Focus Settings in SGPro. Most have a range of focus travel of only about 1" compared to the 2"-3" of travel found on . With this focus motor unit installed, celestial objects can be brought into sharp, precise focus using your telescope's hand controller or a computer. It's implemented in the next version (1.11). First, I test the Celestron Focuser Utility. Check description for full list. To access the thread, adapter #1 has to be removed 3. arrow button will require compensation for backlash otherwise you will notice a I have no idea about your statement, "The amount of "overshoot" that the Celestron app does is approximately 450". - The Celestron SCT 8 manual says for imaging once you have good focus on the center you should back out CCW 1/12 of a rotation (~83). Bug Fix: clicking the "download button on UI crashed application. The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes With the focus motor installed you can bring celestial objects into sharp precise focus using your telescope's hand controller or a computer instead of using the focuser knob A focus motor is great for visual observers who want to dial in exact focus . Hi What does this Newtonian Diffraction Pattern indicate? Edited November 23, 2012 by Brinders. It is also compatible with the 8" Rowe-Ackermann Schmidt Astrograph (RASA), the 36cm RASA, the 7" Maksutov-Cassegrain, and all the EdgeHD optical tubes except for the 9.25". Celestron Firmware Manager. button. You can see the backlash settings in the first video. The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. I'm curious why 1. Finish in or finish out works the same as Dec/ RA motion as you move the mirror in and out. move in the direction opposite of tracking. I am puzzled as to why there is a default exposure setting for auto focus but no default gain setting. Zero backlash stepper motor. Afterwards, I used a Bahtinov on the bright star and it was spot on. For example, the Starlight Instruments FeatherTouch Fine Micro-Focuser Upgrade for 11" Celestron SCT Telescopes is easily installed and allows for both standard and 1/10th speed focusing for ultra-sharp views. Known World Wide for their amazing quality and durability, Starlight Instruments focuser's gives absolute precision and eliminates inherent image-shift and backlash, even when the primary mirror in the telescope is moved to focus. This is what it looks like: As mentioned in a few places, the primary thing is you need to have a reasonably good focus as a starting point. From the reviews: "This is one of several dozen books in Patrick Moore's "Practical Astronomy" series. Amid this large family, Mobberley finds his niche: the beginning high-tech amateur. Which kind of makes sense, but at 1am it didn't make sense and I had to interrupt the sequence, refocus, and restart it. I get the impression that temporarily increasing the setting to 500/0 might make it easier to see. Unrivalled in its coverage and unique in its hands-on approach, this guide to the design and construction of scientific apparatus is essential reading for every scientist and student of engineering, and physical, chemical, and biological ... In this video, I am calibrating the Sesto Senso focuser, but also showing you how to measure the backlash of any focuser.Feel free to like and subscribe and . Celestron Classic and EdgeHD 6, 8, and 9.25; Celestron RASA 8; Please note that some older SCT series are NOT compatible with the SCT bracket, so please contact Pegasus Astro with a photo of your telescope focuser if you are not certain that your telescope can accept the SCT bracket; The SCT bracket was designed to support Celestron SCT telescopes. Found inside – Page 48Meade engineers have created a virtually backlash free equatorial mount . ... 1059.00 CELESTRON Celestron Eyepiece kit Five Superior Grade Plössl Eyepieces - ... 2 " Crayford - Style Focuser With 1.25 " Adapter . Focus tension knob and ... Zero allows backlash free movement and is way faster than older motor. The Bahtinov mask was used to get a starting focus point but the temperature had dropped quite a few degrees. That's the reason for the bright star being grossly over-exposed, I had set the exposure for the dimmer stars. This faster motor will be particularly usefull for . Compatible with a wide variety of Celestron Schmidt-Cassegrain, EdgeHD, and Rowe-Ackermann Schmidt Astrograph optical tubes. CCW is "loosen" for a screw which is confusing but what happens is that the screw is turning inside a threaded cylinder which pushes the mirror out. Read our guide! Found insideFor eyepiece projecally fine low - cost , wide - field tion or first focus . SR 4mm . Ke 22mm ea . ... Full 26mm clear2.4 " focusing without backlash . ... 92627. ( 714 ) 646-9281 Celestron 5 Photo ASTRONOMY OB $ 1.50 1757 V. / Focusing should be smooth and easy, without any backlash, so the telescope doesn't vibrate or shake, even at higher magnifications. You currently have javascript disabled. Page 3 of 3 - Celestron Motor Focus - NINA Auto-Focus Settings - posted in Equipment: My settings have changed slightly since earlier in this thread. Prodigy Microfocuser is a robust clear 3-inch robotic focuser which allows you to precisely and remotely control the focus of your telescope setup. $38900. Quality reliable. We believe that it will greatly help with astrophotography. I’d also be curious what Backlash Compensation step size others are using for their EdgeHD scopes. Page 2 of 3 - Celestron Motor Focus - NINA Auto-Focus Settings - posted in Equipment: HOWEVER, since the CFM has been designed to function in the opposite, placing your overshoot value in the IN field is the only way for the final focus move to be OUT, which corresponds with the CFM CCW motion. This results in one movement counter-clockwise. Pulley and Belt design allows .
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