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#1 Danoglide63

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Posted 26 June 2019 - 06:58 PM

Hey everybody,

I've been offered a Meade Schmidt-Newtonian OTA in trade by a fellow who says it's Model LXD65 and it's 10 years old. I can't find any LXD65's online but 55 and 75's. Seems like high tech back then but is it worth looking at today? I only want the OTA, the rings and the dovetail mount. Would it be too heavy for my AVX mount? I don't know the weight yet. I'm wanting it for visual and maybe some lightweight AP.

 

Thanks,

Dano



#2 petert913

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Posted 26 June 2019 - 07:06 PM

What's the aperture ? That will dictate if the AVX is worthy.

 

6" yes.   8", probably no.


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#3 junomike

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Posted 26 June 2019 - 08:14 PM

They also made a SN10 which is hefty as well.



#4 Danoglide63

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Posted 26 June 2019 - 08:28 PM

It's a 6". Is it worth going after?



#5 carolinaskies

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Posted 27 June 2019 - 08:49 PM

I would guess it depends on what your planning to trade on if it's worthwhile. 

The 6" and 8" will be visually fine and OK for planetary/short exposure and limited long exposure.  They are 13# and 24#, the 10" is 30# so visual only. 



#6 jgraham

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Posted 28 June 2019 - 08:41 AM

The SNs are my favorite imaging scopes and they also work very well for visual. Being 10 years old it is likely an LXD75, but the LXD55 and 75 OTAs are nearly identical. The only difference that I can see is that the LXD75s used a standard interchangeable Meade mount for the finder, the LXD55s used a finder that mounted directly to the tube via thumb screws. I prefer the LXD75 as it makes it easier to mount a guide scope. A 6" would be fine on an AVX, an 8" would be okay for visual, marginal for imaging but should do okay for basic imaging if you watch the balance, a 10" is a monster an needs an Atlas/EQ6 (but well worth the effort).

 

FYI... the original Meade dovetail is not quite a Vixen and should NOT be trusted on a Vixen style mount. The Meade rail has a notch that engages the top of the LXD55/75 mount and this notch limits the engagement onto a Vixen style mount. It engages just enough to make you think that it is secure, but it's not. I dropped an SN6 off of my Atlas before I figured that out. The fix is to move the rings over to a real Vixen rail.

 

My SN6 configured for imaging before I replaced the DSX-90 with a 50mm mini guide scope...

 

Atlas EQ-G SN6.jpg

 

...my SN8 in a similar configuration. This is an LXD55 OTA and you can see the thumb screws for the finder...

 

Atlas EQ-G SN8j.jpg


Edited by jgraham, 28 June 2019 - 08:44 AM.


#7 jgraham

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Posted 28 June 2019 - 08:42 AM

The Beast, my SN10 in its present configuration with a 50mm guide scope showing how it is mounted in the finder shoe...

 

Atlas SN10 ASI071MC.jpg

 

I have also replaced the original focuser with a Moonlite. I used the stock focusers for years and I never had a problem with them, but the Moonlites are nice!


Edited by jgraham, 28 June 2019 - 08:45 AM.



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