Re: Fork to tripod arrangement of Nexstar SLT
Having never seen a Prodigy, I can not be 100% on this. My impression is that the Celestron SLT, Celestron Prodigy, and SkyWatcher SynScan AZ GOTO mounts all use the same identical lightweight tripod and the same identical way to attach the mount to the tripod.
I have attached my SkyWatcher to my CG5 tripod and that combination is totally vibration free. To do this, I had to remove the CG5's center brace and tray and the bolt that attaches them to the tripod head. I then inserted a bolt that matched the Skyatcher's bolt through the hole in the middle of the CG5 tripod head and screwed it into the base of the SkyWatcher mount. This makes a very super solid combination. The CG5 tripod without the center tray has no problems at all. I use this combination with either my 6 or 8 inch SCT on my SkyWatcher mount (over loaded 50% but works great). warning One thing to be very careful about. If the bolt you use to attach the prodigy mount to the CG5 tripod is too long it can intrude too far into the base of the SLT/Prodigy/SkyWatcher mount and damage the mount. I simply put a nut on the bold on the bottom of the CG5 tripod head to adjust the length of the bolt's intrusion into my mount. In other words, the length of the bolt protruding the CG5 head is the same length of the bold protruding through the Prodigy/SLT/Skywatcher tripod's head.
Another avenue take is to simply alter the Prodigy's tripod to make it more rigid. You can do this with out voiding your warranty. First, tighten up the hex bolts at attach the tripod's leg sockets to the tripod's head. Don't worry, you can still collapse the tripod afterwards. Tighten up all other screws and bolts being careful of the soft plastic materials that Celestron uses on the tripod. The upper tripod legs are attached to their leg sockets by two inline rivets. While the connection looks firm, it isn't. Inject super glue between the upper tripod legs and their upper and lower leg sockets being careful not to get super glue on any moving parts. Move the center brace down 7 to 10 cm (3 to 4 inches) to prevent resonance in the upper legs. note: this will decrease the stability of the tripod slightly but still have a larger foot print than many similar telescope tripods. While all the above will not eliminate the vibration of the tripod, it will lower the amplitude, frequency, and duration of the vibration and make the tripod more useable.
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Celestron NexStar 4 SE
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