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Levenhuk Ra refractors?

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#1 Jim7728

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Posted 24 March 2013 - 06:15 AM

Linky:

http://www.levenhuk....tors-ota-items/


Some (really) nice prices what look to be Long Perng or Tawain sourced telescopes as well as other optics.

However, looks to be a faceless vendor similer to what AstroTelescopes was before Hands On Optics became the rep.

Furthermore, the really nice prices i.e., a 115mm fpl-53 triplet for $1849 sounds too good to be true or these are "2nds" type ota's.


Just thought I'd share or a buyer beware. ;)

#2 Rich V.

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Posted 24 March 2013 - 11:35 AM

Some (really) nice prices what look to be Long Perng or Tawain sourced telescopes as well as other optics.


They appear to be sourced from Kunming United Optics in China.

http://www.united-op...scope/Apochr...

Rich

#3 Jim7728

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Posted 24 March 2013 - 12:02 PM

Yes.

Smaller ota's look like Long Perng.

http://www.longperng...t=list&catId=24


They have listings on Amazon as a 3rd party seller, but are new and have no feedback.

Levenhuk Inc.

#4 Rich V.

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Posted 24 March 2013 - 12:15 PM

The 80mm triplet photo is right out of the KUO webpage; the smaller doublet photos are from the Long Perng page.

You've got to love the name; is Levenhuk a corruption of Leeuwenhoek? :question:

Rich

#5 Jim7728

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Posted 24 March 2013 - 12:39 PM

Ahh, very good. I had no clue of the name.

http://en.wikipedia....van_Leeuwenhoek

#6 jrbarnett

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Posted 24 March 2013 - 05:25 PM

Very cool. Though I don't think all of them are Long Perngs. The 130mm looks like a Kunming similar to the new Meade Series 6000 scopes. Note that unlike certain other (e.g., the 115mm) to does *not* specify FPL-53 for the ED glass. The Kunmings use HK-61 from CDGM, which is similar to FPL-51 rather than FPL-53.

The 72ED is actually on the high side. Astro-Tech sells the same scope in multiple colors for about $20 less. The coolest item is the "EON". The EONs and Equinoxes used Long Perng OTAs. This $1850 unit appears to be identical to those now discontinued Synta-branded units. Of course, the EON was about $1500 when still available.

Perhaps the best deal is the 110mm triplet. It's almost certainly either an Astro-Tech 111EDT or WO 110FLT clone (if you believe Long Perng actually makes different optics for each of those two models). If so, $1250 is a steal. That's what used AT111EDTs normally go for, and way less than WO asks for the FLT110 even when the latter is "on sale".

Regards,

Jim

#7 A. Viegas

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Posted 25 March 2013 - 01:37 PM

Jim,

The website says

"One element of the fully multi-coated apochromatic objective lens is made of ED glass with extra-low dispersion, which further adds to the quality of the produced views."

Noobish question, but... Is that normal? A triplet with just one lens made of ED glass? Of course there is no detail on what kind of glass either...

Hmmm

Al

#8 jrbarnett

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Posted 25 March 2013 - 02:01 PM

Yep. Normal. Of currently available consumer refarctors the only two triplet models I know of that use dual ED elements are the TOA-130 and TOA-150. Pretty much every other ED triplet uses a single ED element in between two non-ED elements.

Regards,

Jim

#9 Daud

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Posted 25 March 2013 - 09:45 PM

Funny how all items have a comment "last one in stock"

#10 beanerds

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Posted 29 March 2013 - 03:23 AM

I had one of there 90mm f500 APO's ? made by Long Perng for a while and at $799aud ( Andrews Communications here in OZ ) it was a good buy better than the $949.95 of Levenhuk's , great build , awsome focuser , but sadly not an APO by a long shot ! My ED80 at the time blew this 90mm away , easily . shame really as these are a nice scope , just ,,, have I mentioned this before ,,, Not an APO . :bawling:
Andrews comm. had 5 of these for sale here and it looks like mine was the best of these , I got the 1st one .

Thru the local IIS ( Ice in Space ) astro site 4 of these 5 got sold and the other 3 were quickly returned after a bagging here .
Shame really as the build , as I said is very good , but these are not APO's .
I sold mine at a loss and now have a Takahashi SKY90 with the same specifications except the Tak has 'Fluorite' in its make up .90mm diameter and 500mm f/l , eg. f5.5 .

Buyer beware with these , but I would like to try one or these 110mm f7's at only $1499 here in OZ ??? Got to be worth a look ?
Here is my LP90mm f5.5 .( now sold )
Brian.

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#11 beanerds

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Posted 29 March 2013 - 03:28 AM

Here is the objective , lovely to look at , not so hot to look thru :confused: .
Notice it does not mention the letters 'APO' or 'ED' ?
Such a shame as the build is top's .
Brian.

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#12 beanerds

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Posted 29 March 2013 - 03:33 AM

Oh well , while I am on a roll , here is the old ED80 and LP90mm side by side .
I should never have sold that ED80 .
Brian.

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#13 Jim7728

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Posted 29 March 2013 - 08:08 AM

Brian, that ota looks familiar. :grin:

Got it last year for $550(US)

Posted Image


I also agree with your review. Nice build, ED element (fk-61?) moderately effective for a 90mm f/5.5 though it does outperform a ShortTube 80 achro. Still provides nice low power , widefield views with color fringing on bright objects. Acts like a f/10 achro.

#14 TG

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Posted 02 April 2013 - 08:53 PM

Here is my LP90mm f5.5 .( now sold )
Brian.


Nice but the real question is what is that massive objective lens it's sitting on? :lol:

#15 turtledude1

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Posted 16 April 2013 - 06:55 PM

There's a new ad is the classifieds/refractors from the Astronomy-Shoppe.com Says the Levenhuk are Russian made.

Maybee they are made on the Russian side of the Chinese border.

#16 jrcrilly

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Posted 16 April 2013 - 07:04 PM

There's a new ad is the classifieds/refractors from the Astronomy-Shoppe.com Says the Levenhuk are Russian made.

Maybee they are made on the Russian side of the Chinese border.


Probably just careless ad composition. The Levenhuk website says that model comes from the PRC.

#17 jrcrilly

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Posted 16 April 2013 - 07:10 PM

There's a new ad is the classifieds/refractors from the Astronomy-Shoppe.com Says the Levenhuk are Russian made.

Maybee they are made on the Russian side of the Chinese border.


Probably just careless ad composition. The Levenhuk website says that model comes from the PRC.


...though the Levenhuk website has its own amusing bloopers - such as

Due to the inherent characteristics of carbon fiber and its high thermal conductivity, the telescope also requires far less time to adapt to outside temperatures

:foreheadslap:

#18 moynihan

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Posted 16 April 2013 - 07:41 PM

currently in the classified ad section

#19 Daud

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Posted 16 April 2013 - 07:49 PM

Also fun to read the Amazon profile, lot of self boasting and of course,Chinese provenience is clearly stated.

#20 astronomy-shoppe.com

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Posted 16 April 2013 - 11:12 PM

the company is from Russia, the Optics are Chinese, I don't know where thay are assembled. we have tested three samples, they all looked very good. 80, 115 and 130 , Fit and finish and color free optics. ( slightly under-corrected ) very nicely made two speed focuser. . We will have samples at NEAF. so stop by and say hi>
Tony

#21 Daud

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Posted 17 April 2013 - 12:02 AM

the company is from Russia, the Optics are Chinese, I don't know where thay are assembled. we have tested three samples, they all looked very good. 80, 115 and 130 , Fit and finish and color free optics. ( slightly under-corrected ) very nicely made two speed focuser. . We will have samples at NEAF. so stop by and say hi>
Tony


Hi Tony,

the company just pushes its Chinese products on the Eastern European market and has no production located there. You can ask Valery Deryuzhin (Aries, Ukraine), what he thinks about the origin of the products and some of their statements below.

It is interesting to compare the different language versions of the "About us" on L. website for the telling tailoring of the message..
E.g. Google translation of the Russian version:

The "Leeuwenhoek" was founded in the U.S. in 2002. The main purpose of the company was to promote high-quality optics in Russia, the CIS and Eastern Europe. In 2007, the head office was moved to Moscow, which allowed the company to be closer to the end user of their products and to simplify logistics. The move marked the beginning of intensive development and a new history.

In 2010-2011. innovative company has introduced a series of design of telescopes and has developed a unique series of telescopes Levenhuk Strike. At the same time for all the products the company introduced three-year warranty, which indicates the quality of the products brand Levenhuk.

In early 2012, the company opened offices in the Czech Republic and Ukraine, which led to an increase in the supply of optical products Levenhuk in the CIS and Eastern Europe. In December 2012, the company "Leeuwenhoek" hit the MII Moscow Stock Exchange. And with the opening in February 2013 offices in Chicago brand has a foothold in the United States.

In Russia, the company has an extensive dealer network, and we are constantly striving to expand and offer it to you to become a dealer Levenhuk. Options for working with us can be found in the " Become a Dealer ".

#22 sonny.barile

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Posted 20 April 2013 - 11:23 PM

the astro cameras look awesome. The two more expensive options claim to be mac compatible with 1/2 cmos chips. DSS objects are within reach with this entry level price. I am tempted to take a shot.

#23 faltered

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Posted 06 May 2013 - 08:25 AM

These are now being offered at Telescopes.com


http://www.telescope...k&x=-1034&y=-59

#24 Jim7728

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Posted 11 May 2013 - 09:53 AM

Interesting development that a major vendor is selling this line. I only have experience with the 90mm 5.5 APO which is really a well built semi-apo.

The ED glass specs also appear dubious for some models especially the 110mm doublet(listed as a triplet) claiming a fpl-53 elemnt for $1249.

http://www.telescope...tripletedref...

#25 herrointment

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Posted 11 May 2013 - 11:36 AM

The 72 it damned pretty.

The astronomy market can be awfully confusing. There's gotta be some money in it with various rebranders throwing their hat into the ring. I'd gotten used to the situation regarding woodworking equipment and had hoped that this hobby would be different. That's not how the world works today however. If you'd like something not in the mass market you had better be prepared to pay for it.






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