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meade 12.5 starfinder EQ

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#1 rob1986

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Posted 28 July 2021 - 04:22 PM

does anyone have any experience with meade's 12.5 starfinder EQ?

 

the dobs seem to have been common, what about the eq model?

 

can they be had for sale? how much did they weigh?

 

are any still around in good original configuration?

 

 



#2 Supernova74

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Posted 28 July 2021 - 04:32 PM

Well funny as you mentioned that as it was literally today! i was watching ED Ting utube channel and was,nt aware that Meade offered a 17.5” dobsonian and according to him thay do come up for sale now and again the equatorial equivalent unfortunately I do not know.i have never seen one come up for sale on the uk preowned market however the states has a lot larger market place than ours so I’m guessing it’s just a question of being in the right place at the right time I guess.



#3 rob1986

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Posted 28 July 2021 - 04:46 PM

Well funny as you mentioned that as it was literally today! i was watching ED Ting utube channel and was,nt aware that Meade offered a 17.5” dobsonian and according to him thay do come up for sale now and again the equatorial equivalent unfortunately I do not know.i have never seen one come up for sale on the uk preowned market however the states has a lot larger market place than ours so I’m guessing it’s just a question of being in the right place at the right time I guess.

wouldn't be the first time meade put mythical scopes in their catalogs. there's an early nineties' era 14inch SCT on the lxd 750 that they advertised but never actually made.



#4 Supernova74

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Posted 28 July 2021 - 04:58 PM

wouldn't be the first time meade put mythical scopes in their catalogs. there's an early nineties' era 14inch SCT on the lxd 750 that they advertised but never actually made.

Well I owned the DS 10” was it ? It was a terrible scope with straps used to lock the OTA in place.as I recall there was a guy in Australia who owned the DS 16” at the time the number 1 amateur who discovered supernovas 



#5 jsiska

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Posted 28 July 2021 - 08:24 PM

I have a Meade 1992 General Catalog and it describes the following Starfinder Equatorials and Dobsonians with seven pages of descriptions, photos and a specification comparison table. This catalog only has a 12.5" Starfinder Dob listed and does not mention a 12.5" Starfinder Equatorial being available.

 

Equatorials:  6" f/8;   8" f/6;   10" f4.5;   16" f/4.5

 

Dobsonians:  6" f/8;   8" f/6;   10" f4.5,  12.5" f/4.8;   and 16" f/4.5

 

 

Also note the 6", 8", and 10" Starfinder Equatorials came with GEM that had 1" Polar and Dec shafts and a 4" diameter pier; whereas, the 16" Starfinder came with a GEM that had 1.5" Polar and Dec shafts and a 6" pier mount which was similar the then older Meade Research Series telescopes mounts.

 

These older Research Series Equatorials came in 8", 10", and 12.5" and were overall much better built telescopes than the Starfinders were.


Edited by jsiska, 28 July 2021 - 08:49 PM.

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#6 Tom Stock

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Posted 28 July 2021 - 08:54 PM

does anyone have any experience with meade's 12.5 starfinder EQ?

 

the dobs seem to have been common, what about the eq model?

 

can they be had for sale? how much did they weigh?

 

are any still around in good original configuration?

No 12.5 starfinder.  Perhaps research grade DS-12.5 but that would be pretty rare.

 

The 10" starfinders are still around and fairly cheap.  I just purchased a working starfinder equatorial mount (mount and counterweight only) for $150.

 

Its was the first scope I drooled over back in the 90s and I never could afford one.

 

Now they are dated and not practical but still hoping to find an 8" or 10" ota for my new mount.


Edited by Tom Stock, 28 July 2021 - 08:56 PM.

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#7 micahforstein

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Posted 14 August 2021 - 12:18 PM

Would a 10" starfinder eq mount work with a 16" OTA? the 10" OTA is 34lbs the 16" OTA is 100lbs.  I have a 10" starfinder eq and a 16" dob. 



#8 The Planetman

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Posted 14 August 2021 - 12:28 PM

Would a 10" starfinder eq mount work with a 16" OTA? the 10" OTA is 34lbs the 16" OTA is 100lbs.  I have a 10" starfinder eq and a 16" dob. 

No, not at all.  Don't even try it.
The 10" mount is a 1" shaft.  The mount for the original DS 16/Starfinder 16" is a 1-1/2" shaft.  Even with that, the 16 is pushing the limits of the larger mount.  I have had three 12-1/2" Meade Research Grade telescopes from the late '70's/early '80's, and they push the limits of the 1-1/2" shaft mount. 


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#9 Bomber Bob

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Posted 14 August 2021 - 01:49 PM

Maybe I got the best of both (totally by accident):  826 OTA on a SF EQ...

 

I wouldn't want a 10" Newt on my SF mount -- not nearly robust enough, IMHO.



#10 Tom Stock

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Posted 14 August 2021 - 02:12 PM

Would a 10" starfinder eq mount work with a 16" OTA? the 10" OTA is 34lbs the 16" OTA is 100lbs.  I have a 10" starfinder eq and a 16" dob. 

No, in fact the 10" was pushing the limits of the mount at the time.

 

If you saw how large the mount is for the 16" it would shock you and it's still too small for the OTA!



#11 CHASLX200

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Posted 14 August 2021 - 03:37 PM

Only 12.5" on a EQ mount was the RG scope made around 1980.


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#12 Jon Isaacs

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Posted 15 August 2021 - 02:03 AM

No, not at all.  Don't even try it.
The 10" mount is a 1" shaft.  The mount for the original DS 16/Starfinder 16" is a 1-1/2" shaft.  Even with that, the 16 is pushing the limits of the larger mount.  I have had three 12-1/2" Meade Research Grade telescopes from the late '70's/early '80's, and they push the limits of the 1-1/2" shaft mount. 

 

It worked but it wasn't optimal.  If one wants a Meade 16 inch that tracks, the best thing is to build an equatorial platform.

 

Jon


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#13 CHASLX200

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Posted 15 August 2021 - 05:48 AM

Would a 10" starfinder eq mount work with a 16" OTA? the 10" OTA is 34lbs the 16" OTA is 100lbs.  I have a 10" starfinder eq and a 16" dob. 

Not a CHANCE. Even a 10" is too much for that mount. Need a Cave 2.5" shaft observatory mount for any 16".


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#14 jsiska

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Posted 15 August 2021 - 09:49 AM

The RG mount works very well with the RG 880, 8" f/6 that it came with. I've never tried it, but I also have a 10" f/4.5 Starfinder Dob that I think would work well if I ever decided to mount it on the RG 1.5" mount. Even though the Starfinder sonotube tubing itself is probably heavier than the tube on the RG OTAs, I suspect that the shorter tubed 10" Starfinder OTA may be easier on the 1,5" RG mount than a RG 1060, 10" f/6 OTA with its heavy rotating rings.

 

In other words a 10" f/4.5 OTA would probably work as well on the RG mount as the RG 880 8" f/6 OTA. They're both about the same weight and overall  length.


Edited by jsiska, 15 August 2021 - 10:00 AM.

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#15 CHASLX200

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Posted 15 August 2021 - 10:39 AM

A 10" F/6 works fine on my RG mount.


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#16 rob1986

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Posted 15 August 2021 - 11:40 AM

maybe a modern f5 12 inch would work very well on a DS-16 (orion, gso etc)



#17 YourNotSirius

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Posted 15 August 2021 - 07:23 PM

maybe a modern f5 12 inch would work very well on a DS-16 (orion, gso etc)

When I was growing up we used DS-16 GEMs for several of our 6" f/15 refractors and they all performed quite well. Even a fair breeze was not an issue. Dad even made one into a GOTO mount using the gears and such from an iOptron Mini Tower! It worked nicely! He tore it all apart once he moved out of Florida and nothing has been put back together since.

 

FWIW

 

Q


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#18 Bomber Bob

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Posted 15 August 2021 - 07:33 PM

maybe a modern f5 12 inch would work very well on a DS-16 (orion, gso etc)

modern... I don't recognize that word...  what's it mean??


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#19 rob1986

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Posted 16 August 2021 - 09:17 AM

modern... I don't recognize that word...  what's it mean??

steel tube etc, several weight saving measures over the older models.



#20 rob1986

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Posted 16 August 2021 - 11:11 AM

modern... I don't recognize that word...  what's it mean??

steel tube etc, several weight saving measures over the older models.

 

50 lb ota as opposed to 80 - 100 with sonotube




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