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Equipment Discussions >> Classic Telescopes

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Dave M
Postmaster
*****

Reged: 08/03/04

Loc: Ohio
Re: 8 inch Dynamax SCT on CL Columbus $300 new [Re: starman876]
      #5794245 - 04/12/13 11:39 AM

Ever read the reviews on those,

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Masvingo
scholastic sledgehammer
*****

Reged: 01/10/12

Loc: Ayrshire, Scotland
Re: 8 inch Dynamax SCT on CL Columbus $300 new [Re: terraclarke]
      #5794436 - 04/12/13 01:18 PM

Terra

Some are good, some are bad, I think it is true to say that quality was more variable with the D8 than with Celestrons. From what I've read Criterion did not match the secondaries to the corrector unlike Celestron who refined the figure of the secondary to compensate for any irregularity in the corrector and this may account for the greater variability but I don't know for sure.

They also seem to benefit from fettling, getting the corrector and secondary centred and the primary squared up - see for example, Andy Taylor's post in Cats and Casses, "Dynamax 8 - from a pigs ear to a silken purse... " And cool down time can be longer than an orange tube.

Mine seems to be a good one (maybe because I've refrained from touching the optics - a little bit of knowledge is a dangerous thing) and has virtually none of the usual SCT image shift, unlike my orange tube C5. But I think in a blind testing you would spot which was a D8 and which was a Zeiss!

Interesting difference in production numbers, serial numbers would suggest Celestron produced upwards of 25,000 C8s by the end of 1981 whereas Criterion produced either around 3,600 or 4,600 over the same period, depending on whether they started numbering from 0001 or 1000.

James


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Masvingo
scholastic sledgehammer
*****

Reged: 01/10/12

Loc: Ayrshire, Scotland
UK 13" f4 Newtonian new [Re: Masvingo]
      #5794779 - 04/12/13 03:47 PM

12" f4 Newtonian

The ad states "Optics by D. Sinden" - I believe David Sinden was the former Optical Workshop Manager at Grubb Parsons.

The tube, as they say, has plenty of patina and character! (Or signs of a hard life)


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NovaTJ
member
*****

Reged: 03/13/09

Loc: Stafford, Va.
Re: 8 inch Dynamax SCT on CL Columbus $300 new [Re: Masvingo]
      #5795376 - 04/12/13 09:03 PM Attachment (14 downloads)

I did actually buy an old Dynamax 8" SCT about a year ago that was on Craigslist for $50. I just had to see if it was as bad as most of the reviews said. As purchased, it was everything I expected...junk. After a half day of aligning and adjusting the optics, It compared quite favorably to a friends C8!

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Nave
Pooh-Bah


Reged: 02/23/10

Cali Cave Update new [Re: NovaTJ]
      #5795671 - 04/13/13 12:03 AM

Heard back. Seller indicates family has reconsidered selling. Someone in the family wants it. Ad has been deleted. Left my number should they decide otherwise but wished 'em well. Thanks to Dan for suggested price range, on which I relied for my offer. He & I both agree that it was more likely a 10", and that they were measuring the tube diameter.

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David E
Post Laureate
*****

Reged: 05/25/06

Loc: North Carolina
1968 Edmund 4.5" reflector w/mount new [Re: Nave]
      #5796373 - 04/13/13 10:44 AM

For pick up only in Sacramento Ca area.

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Jason H.
Pooh-Bah


Reged: 11/23/07

Loc: Central Florida
Re: Craigslist, ebay and other vintage scope ads. new [Re: Rich (RLTYS)]
      #5797215 - 04/13/13 05:36 PM

RARE ANTIQUE ASTONOMY PLANET STARS 34" TELESCOPE 4 ½"x 1/2" THICK LENS - $20
http://rochester.craigslist.org/for/3667326127.html

75mm Unitron with Unihex, and an old 10" newt and more, $600 for all
telescopes and telescope parts (milwaukee)
http://milwaukee.craigslist.org/for/3716725795.html

Vintage Criterion Concave Lens Telescope - $450 (Cedar Park)
http://austin.craigslist.org/atq/3713719410.html

Vintage Swift Telescope - $125 (CAVE CREEK AREA)
http://phoenix.craigslist.org/nph/for/3708334699.html

Cave 8" f/7 Newtonian Telescope - $2500 (Crestview, FL)http://okaloosa.craigslist.org/clt/3682904871.html
http://okaloosa.craigslist.org/clt/3682904871.html

GOTO Kogaku, Tasco 10TE and Scope
Classic Telescope Collection (Scappoose)
http://portland.craigslist.org/mlt/for/3700695902.html

Edmund Scientific Telescope - $100 (08034)
http://southjersey.craigslist.org/for/3720233464.html

"This is a classic scope that has developed an almost cult-like following."
60s or 70s CRITERION 6" Reflector Telescope on EQ Mount w/ AC drive - $240 (Santa Fe)
http://santafe.craigslist.org/for/3730537084.html

No pic, "vintage (handmade from kit in the '50's) Criterion Super Scope, 350X telescope, mfg. by Brownscope. 3" diameter"
http://albany.craigslist.org/clt/3700875559.html

No pic
Sears Equatorial Refracting TELESCOPE - $40 (Cleveland)
http://chattanooga.craigslist.org/for/3721204223.html

Orange tube with external clock speed adjuster and full aperture glass solar filter
Classic 8 inch Celestron Telescope - $575 (Woodland, Wa)
http://portland.craigslist.org/clk/for/3734245883.html

8" Edmund mirror
Homemade Telescope-Edmunds Mirror - $175 (Llano, TX)
http://austin.craigslist.org/spo/3694729543.html

meade 16 " dobsonian telescope - $900 (norfolk)
http://hartford.craigslist.org/ele/3626118366.html

Edmund Scientific Eq telescope mount - $300 (Northshore Wakefield ma)
http://boston.craigslist.org/nos/pho/3732447549.html

Edmund Scientific 6" Reflector Telescope - $225 (Citrus Hills, FL)
http://ocala.craigslist.org/spo/3702780925.html

6-inch Newtonian Telescope - $150 (Ankeny, Iowa)
http://desmoines.craigslist.org/for/3710914245.html

Jason W. Higley


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amicus sidera
Post Laureate
*****

Reged: 10/14/11

Loc: East of the Sun, West of the M...
Re: Craigslist, ebay and other vintage scope ads. new [Re: Jason H.]
      #5797257 - 04/13/13 06:01 PM

Great list, Jason, thanks!

I notice that the Unitron and 10" reflector deal appears to include a bullhorn; perhaps a little something to draw attention to one's self and scope during public events...

Hmmmm... the mention of a "cult-like following" that the 6" Dynascope has attained tells me that the seller might have been reading this forum at one time, wouldn't you say?

That next-to-last listing has been on CL several times in past months, and is a reasonably-priced, effective and beautiful instrument; surprised that one of our Florida members hasn't given it a good home yet.

I do love to see people's pets who wander into frame, such as the cute and furry kittycat who's quizzically looking up at the scope in the final listing!

Fred


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terraclarke
Post Laureate
*****

Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Craigslist, ebay and other vintage scope ads. new [Re: amicus sidera]
      #5797410 - 04/13/13 07:57 PM

Someone up in Chicago or around the western Great Lakes needs to go rescue that Unitron 140 with Unihex for 600 bucks. You can garage sale the rest of the stuff to help pay for your gas. It's a deal!!!

Edited by RLTYS (04/14/13 07:15 AM)


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labmand
sage
*****

Reged: 02/08/11

Loc: Michigan USA
Re: Craigslist, ebay and other vintage scope ads. new [Re: terraclarke]
      #5797433 - 04/13/13 08:16 PM

Thanks Terra, gasing the truck up now... No not really, It's another waiting game, no phone number so we'll see
if I get a responce
Dave


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terraclarke
Post Laureate
*****

Reged: 05/29/12

Loc: Just South of the Mason-Dixon ...
Re: Craigslist, ebay and other vintage scope ads. new [Re: labmand]
      #5797442 - 04/13/13 08:23 PM

I hope you get it Dave. It will make a nice companion to your 114.

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labmand
sage
*****

Reged: 02/08/11

Loc: Michigan USA
Re: Craigslist, ebay and other vintage scope ads. new [Re: terraclarke]
      #5797447 - 04/13/13 08:27 PM

It aint gonna happen Terra, Mike in Milwaukee said the scopes all sold.

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Ron500E
member


Reged: 06/01/12

Loc: Illinois, near the River Styx
Re: Craigslist, ebay and other vintage scope ads. new [Re: labmand]
      #5797495 - 04/13/13 09:20 PM

Quote:

Thanks Terra, gasing the truck up now... No not really, It's another waiting game, no phone number so we'll see
if I get a responce
Dave




Dave:

You probably wont get a response, it's the one I bought last week.
Saw the ad, contacted the owner, drove up and back the following day.
It's a very good scope, lots of little extra's like some brackets, etc.
I've started to refinish the legs today but I find that I am missing one of the metal clips on top of the center section of the tripod that holds the spreader bar.
All in all a good scope at a good price.

Kind Regards,

Ron


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starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
Re: Craigslist, ebay and other vintage scope ads. [Re: Ron500E]
      #5797679 - 04/13/13 11:36 PM

Nice buy. Is it my imagination or are there more Unitrons in central part of the country. I think I have seem two for sale in the Washington DC area in the last few years. However. there have been more in that part of the country. Or is that because of Brian

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starman876
Postmaster
*****

Reged: 04/28/08

Loc: VA
75mm unitron [Re: starman876]
      #5797688 - 04/13/13 11:44 PM

http://www.ebay.com/itm/Unitron-model-142-3-Equatorial-Refractor-Telescope-75...

this is a geat deal. I would buy it if I was not on overload with scopes. Someone here should buy this.


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Ron500E
member


Reged: 06/01/12

Loc: Illinois, near the River Styx
Re: Craigslist, ebay and other vintage scope ads. [Re: starman876]
      #5797724 - 04/14/13 12:21 AM

Interesting.... I also collect cars and get great enjoyment out of ferreting them out. The parallels between the car hobby and astronomy hobby are so similar that it's scary. The difference being cars (foreign cars at least)tended to be sold in the larger cities where service and parts were readily available whereas scopes -probably- were not sold near a big city due to light pollution (even back then). Makes it difficult to find things. I lucked out on my 8" Edmund (not sold to a collector/user who will due it far more justice than I ever could) which was part, so I was told, of the Elgin School District back in the 60's.
Chicago, being the home of Sears - including their outlet stores- probably had a lot of their sc
opes sold here but Unitron, Cave etc. I don't think so.


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labmand
sage
*****

Reged: 02/08/11

Loc: Michigan USA
Re: Craigslist, ebay and other vintage scope ads. [Re: Ron500E]
      #5797749 - 04/14/13 01:02 AM

Thanks Ron, would have been a long ride for me anyway
enjoy it but maybe I could get 1st dibs when you decide to
clean house a little.
Dave in West MI


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Larrythebrewer
super member
*****

Reged: 02/14/09

Loc: Cincinnati, Oh
Possible early Criterion Dynascope in Cincinnati [Re: labmand]
      #5797792 - 04/14/13 02:02 AM

Did Someone here on CN, from Cleveland area get this. I called early today but it was already sold, basically site unseen. They were already on way to pick it up (4 hr one way drive). Looked nice in the CL posting

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rdandrea
Carpal Tunnel
*****

Reged: 06/13/10

Loc: Colorado, USA DM59ra
Re: Craigslist, ebay and other vintage scope ads. [Re: amicus sidera]
      #5798000 - 04/14/13 09:32 AM

Quote:

Great list, Jason, thanks!




You gonna drive down the turnpike and get that 6" Edmund on S.Jersey Craigslist?


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amicus sidera
Post Laureate
*****

Reged: 10/14/11

Loc: East of the Sun, West of the M...
Re: Craigslist, ebay and other vintage scope ads. [Re: rdandrea]
      #5798008 - 04/14/13 09:40 AM

Thought about it, as that's a lot of scope for a C-note...

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