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Celestron Nexstar SLT Mount?

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#1 chuck56

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Posted 09 May 2010 - 11:13 PM

I've been looking at the Celestron Nexstar SLT mount and for the price it would nice grab and goto mount for my Orion
ST90 refractor but I know nothing about them. From the way it sounds Celestron uses the same mount for the 60mm to 130mm scopes. Even if had to buy the complete scope (60mm) just for the mount and maybe money ahead. I know the old saying you get what you pay for but this is just a idea. Can anyone chime in?

Chuck

#2 mohananv

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Posted 10 May 2010 - 05:31 AM

I'm not sure about the 60mm SLT, but the 80SLT uses the same mount as the 130SLT. So theoretically speaking you could get that mount for your Orion. The only thing that might be a hinderance would be the dovetail on your Orion. If its thinner than the Celestron scopes, then you're ok, but if its wider, you might be in trouble.

#3 chuck56

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Posted 10 May 2010 - 03:09 PM

Mounting the scope should be no problem its how stable is the mount and how does the goto part work? I've used a few cheap mounts and some aren't worth the metal their made of!

#4 watcher

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Posted 11 May 2010 - 04:43 AM

Works great. The weak link is the plastic that conects the legs to the mount, but it's not bad at all. I use one for my TMB 80SS. Accurate gotos, and a breeze to set up. There is a fairing that is contoured to the ota of the specific scope it comes with, but it can be removed or trimmed to fit your scope.

#5 Jon Isaacs

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Posted 11 May 2010 - 08:41 AM

Mounting the scope should be no problem its how stable is the mount and how does the goto part work? I've used a few cheap mounts and some aren't worth the metal their made of!


I have had a few of these GT and SLT mounts and currently have an 130SLT. I think the GT and SLT are a step or two better than the Meade DS series. The GOTO and the tracking work quite well and for a scope the size of ST90 it should be OK, it not really beefy enough for the 130SLT. In my estimation the legs are the weak point, I am going to try swapping the legs from my Portamount that I replaced, I am thinking they will stiffen things up a bit.

Jon

#6 chuck56

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Posted 11 May 2010 - 01:46 PM

Is the dovetail mounting bar a standard size or is it something special from Celestron just in case I need another one to attach on to my 1/4-20 mount on the OTA. I downloaded the manual and I can't tell by the pictures!
One last thing, did you do any updates on the motor or hand control firmware? I see Celestron has them posted on their web site.

#7 Starhawk

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Posted 11 May 2010 - 07:01 PM

It's the standard Vixen dovetail rail. Remember, Celestron introduced it to America.

-Rich

#8 Jaymz

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Posted 23 October 2010 - 07:49 PM

I wonder if I can use the OTA from my Sky-Watcher 130N (which does not have a dovetail but rings) with the SLT mount. Could I adapt the rings to somehow hold the vixen dovetail, or it's better if I don't use the rings at all, and just put a vixen dovetail instead ?

#9 Jb32828

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Posted 24 October 2010 - 10:13 PM

To stabilize this mount, get 3 of those hockey puck furniture mover pads from walmart along with the cheap 10 lb barbell weight from the fitness aisle, a piece of foam, and a standard 8" cake pan and some jb weld.

Jb weld the weight to the bottom of the cake pan. Stick the furniture pads to the bottom of the barbell weight. Cut the foam into a circle, then cut some eyepiece barrel cutouts into the foam circle. Gorilla glue the foam into the inside of the cake pan.

Voila, you have the SLT mount vibration supression system. Place it on the existing accessory tray, and it does wonders.

#10 Jaymz

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Posted 24 October 2010 - 10:38 PM

have a picture of ... this ? :)

#11 Jb32828

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Posted 25 October 2010 - 12:14 PM

Sure. I have another one of the complete mount I can post when I get home. Don't forget to tighten up the tripod legs, but not so tight that you bust the bolts, it's made in China after all :)

Attached Files



#12 Jaymz

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Posted 06 November 2010 - 08:28 PM

I would certainly like to see the pic with the full setup :)

Anyone, how do I know if the slew speed is too high or too low ? I was trying to track Jupiter and it gets out of my view pretty fast, but I'm not sure if because speed is too high or too low.

#13 Jaymz

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Posted 07 November 2010 - 07:20 PM

does it matter on how much magnification is currently being used, or the slew speed should be all the same regardless of the mag ?

#14 Jb32828

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Posted 07 November 2010 - 08:38 PM

There is a difference between slewing speed and tracking speeds. Slewing speeds are the speed the motor runs at when you are using the arrow buttons to move the scope or you enter an object and hit enter.

Tracking speed is completely different. I dont remember if you can change the tracking rates or not as I have never changed them. It just tracks once you center an object in the eyepiece.

#15 Jaymz

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Posted 07 November 2010 - 08:39 PM

yes, tracking speeds of course is what I meant. I even explained I lost Jupiter while tracking it. why would this happen to me ?

#16 UBHSTRY

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Posted 27 March 2013 - 02:46 PM

Just bringing this to the top so I can find easily.






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