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Another vintage Soligor

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#26 Kasmos

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Posted 12 June 2020 - 02:40 PM

First look thru my Unitron 114 was also disappointing. So about a month ago I cleaned the objective and reset the position of the spacers to coincide with the retaining screws and adjusted their tension to help center the Newton rings. Couldn't get them perfectly centered, but IIRC, afterwards it held it's own when compared side by side to my Mayflower 814, which previously it couldn't. The same day I tried experimenting with everything I could think of with the Soligor's objective and it still fell flat.



#27 CharlieB

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Posted 12 June 2020 - 04:22 PM

I just ran a DPAC test on my Soligor objective and it was pathetic.  I didn't even bother to photograph it.  It was very overcorrected and had a very bad turned edge - and that was best view after flipping, rotating and respacing the elements.  I can't understand why they would put so much into the OTA and mount and couple it with lousy glass.  Looks like the Tasco objective will be a permanent part of this scope.  The rest of the scope is fantastic, rock solid and a joy to use.



#28 Kasmos

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Posted 13 June 2020 - 02:15 AM

Charlie, I believe yours and mine are two of only four known examples of this model. The fact that both have sub par objectives doesn't bode too well for the others.



#29 CharlieB

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Posted 13 June 2020 - 09:57 AM

I finished up the hardware today.  I also decided not to refinish the legs, as I wanted to retain as much of the original look of the scope as possible.  It took quite a few hours soaking in Evaporust and the usual etching primer and black satin paint.

 

I'm also not going to repaint the OTA, as other than a few chips, it's in pretty good shape.  I did run some chrome polish over it to remove layers of grime.

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#30 CharlieB

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Posted 13 June 2020 - 02:44 PM

The whole scope.

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#31 photiost

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Posted 13 June 2020 - 02:52 PM

Looks fantastic !!

 

What a transformation !!



#32 CharlieB

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Posted 13 June 2020 - 03:05 PM

Thanks.  I think it was worth the effort despite the bad objective.  I am very happy with the replacement lens, though.



#33 Kasmos

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Posted 13 June 2020 - 03:40 PM

Beautiful work! 

 

I'm jealous. grin.gif Anyone have a good spare 60/1000mm objective?



#34 CharlieB

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Posted 20 June 2020 - 10:42 AM

I threw my DPAC setup together to test the original Soligor objective.  I tried flipping, rotating, spacing and chanting, but this was as good as it got.  I've never seen one quite like it.  It's got it all - gross over correction, astigmatism and turned edge.

 

For comparison, here is a Swift 838 50/700 taken with the same setup, so I know the results are valid.  I couldn't find any ready-made Ronchi screens, so I tried printing my own.  This screen is 100 lpi.

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#35 Bomber Bob

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Posted 20 June 2020 - 12:48 PM

Speaking of the Swift 838, here's why mine was my reference lens...

 

DPAC - ASI004 Swift 838.jpg

 

... until ... I got my 1983 Takahashi FC-50:

 

Takahashi FC-50 IF T01.jpg Takahashi FC-50 OF T01.jpg

 

For the Swift image:  I was ready to spit nails over my Canon, Nikon, & Nokia E-7 (smart-phone) digital cameras curving the pix of my DPAC patterns.  I had that brand new ZWO ASI120MC (lens-less) planetary camera...  so, I put it on the rig, and made some snapshots, and some 60 second AVI captures.  Like my other cameras, the ASI got "bloomed" by the brightness at the "poles" of the pattern, so I zoomed-in to grab just the "temperate" zones.  Still far from perfect, but it did capture how narrow & straight the 838's bars appeared visually.



#36 Kasmos

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Posted 20 June 2020 - 12:55 PM

Charlie, Mine would probably test the same. It's kind of hard to describe what it looked like but the daytime images in mine remind me of those curvey lines. Sort of blured areas across the field that made it frustrating trying to reach best focus. I was dissapointed so never even tried setting it up at night.

 

BTW, why are the lines in the DPAC image more or less horizontal?


Edited by Kasmos, 20 June 2020 - 12:59 PM.


#37 CharlieB

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Posted 20 June 2020 - 01:14 PM

They are horizontal because I had the Ronchi screen turned from vertical by mistake. They also turned from inside to outside focus due to the astigmatism.



#38 CharlieB

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Posted 25 June 2020 - 10:00 AM

I received some very interesting information about this scope.  I posted a few photos on Hiroki's (CN Galakuma) web site and received this reply from one of his members (Blue Tsukiko):

 

"CharlieB, good evening.

 

Good evening everyone.

 

Asahi Optical Co., Ltd. is a famous microscope manufacturer. The "Optical Industry Directory 1965 Edition" states that it was established in 1946. I am still alive. The brand name is ASA.  In 1955, it produced an astronomical telescope.

 

It seems that there were two types, a 58mm refraction and a 63mm refraction. 63mm refraction with a fine movement device. Soligor alone didn't tell me where it was made, but ASA made it clear. 

 

The information provided by Charlie B is very valuable.There are few astronomical telescopes exported in Japan in the 1950s. Therefore, there is a limit to the investigation.  Please continue to provide information."

 

So it looks like the scope was produced by Asahi in 1955.  At first, I thought that just the eyepieces were Asahi, but the size of the scope and the slo-mo reference has convinced me that it an Asahi product.

 

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#39 Kasmos

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Posted 25 June 2020 - 02:38 PM

Charlie,

This Asahi connection turns me on my head.

 

The 58mm has just a simple swivel device for the alt-az.

I aslo notice the different lens cell and dewshield.

My guess would be that it also has a shorter focal length?

 

I posted this ad in my thread but it bears repeating.

WS-Soligor-1960.jpg

It advertizes our models as a 63mm.

 

The part that's hard to understand is that Asahi made the Pentax and Jupiter models we associate as Asahis in 1955.

So why such different models in the same 60mm class?

 

Eye-Pieces-Soligor.jpg

I had notice that your's has ASA on the EPs and wondered what it meant.

 

To make things more confusing, the tech sheet below was on the back side of a sheet that came with Chuck Hards 1961 63/1000mm Soligor.

The problem is that his scope looks nothing like it and is what one would normally associate as a 1955-62 Towa.

Soligor Ad Sheet .jpg


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#40 Kasmos

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Posted 25 June 2020 - 02:52 PM

Charlie,

Now our Soligors will be even more alike.

 

Keith sent me a objective from a 7TE-5

Lens-Yeah!.jpg

Gumby, Froggy, and Spooky are all very happy about it.

Hope to test it today.


Edited by Kasmos, 25 June 2020 - 02:57 PM.

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#41 CharlieB

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Posted 25 June 2020 - 03:03 PM

As is usually the case, the more information we find, the more confused we become.  If I get more information from Galakuma's site, I will pass it on.

 

Glad to hear you are getting a replacement objective.  I hope you can find a spacer of the right depth. 



#42 Kasmos

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Posted 25 June 2020 - 03:10 PM

As is usually the case, the more information we find, the more confused we become.  If I get more information from Galakuma's site, I will pass it on.

 

Glad to hear you are getting a replacement objective.  I hope you can find a spacer of the right depth. 

I sure hope you can find out more.

 

BTW, approx. how thick of a spacer did it take?



#43 CharlieB

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Posted 25 June 2020 - 03:33 PM

I can't remember exactly, but it was around 3/16".  I will check later and measure it.



#44 CharlieB

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Posted 26 June 2020 - 10:53 PM

Yet another interesting bit of information to pass on.  Evidently, there were two different Asahi Optical companies.  The translation is a bit tough to work through, but here it is (again "Blue Tsukiko" from Galakuma's site):

 

"Hello Charlie B.
Hello everyone.

Charlie B, I'm very worried.

 

Asahi Optical Co., Ltd. (ASAHI KOUGAKU KOUGYOU) and Asahi Optical Co., Ltd. (ASAHI KOUGAKU KI SEISAKUSYO) are completely different manufacturers.

The Asahi Optical Industry Co., Ltd. (ASAHI KOUGAKU KOUGYOU) English name is ASAHI OPTICAI CO., LTD.
The English name of ASAHI KOUGAKU KI SEISAKUSYO is ASAHI KOUGAKU CO.
When translated from Japanese to English, both are replaced by the letters Asahi Optical.
If this distinction cannot be made, it cannot be understood correctly.
I'm very worried about that.

 

A good way is to add an English name and brand name to identify.

Asahi Optical Industry Co., Ltd., ASAHI OPTICAI CO.,LTD, PENTAX

Asahi Optical Industry Co., Ltd. (ASAHI KOUGAKU KOUGYOU)
brand names are Jupiter and PENTAX.
PENTAX manufactured the Jupiter 60mm.
It was especially famous as a camera manufacturer.
Manufactured an excellent astronomical telescope.

Asahi Optical Co., Ltd., ASAHI KOUGAKU CO., ASA

ASAHI KOUGAKU KI SEISAKUSYO
The brand name is ASA.
In Japan today, it is not known that this manufacturer made astronomical telescopes.
Known as the microscope manufacturer."

 

 

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#45 CharlieB

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Posted 29 June 2020 - 10:15 AM

I sure hope you can find out more.

 

BTW, approx. how thick of a spacer did it take?

I measured the spacer and it was 4mm.  I little more or less will still work fine with the original cell retainer.


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#46 Kasmos

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Posted 29 June 2020 - 03:54 PM

Thanks Charlie,

I probably shouldn't have asked (since I'd find out), and now have already done the conversion.

I'll ad what I did and found in my thread.

 

While I was at it, I checked the mount to see the stamped number.

Both are stamped 31 so I assume it's a production matching system.

Soligor-Mount-31.jpg

Soligor-Mount-31-B.jpg

I find it curious that my scope (#20186) is 53 numbers away by serial number,

yet the mount is only 2 or 3.

 

 


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#47 Terra Nova

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Posted Yesterday, 10:24 AM

I threw my DPAC setup together to test the original Soligor objective.  I tried flipping, rotating, spacing and chanting, but this was as good as it got.  I've never seen one quite like it.  It's got it all - gross over correction, astigmatism and turned edge.

 

For comparison, here is a Swift 838 50/700 taken with the same setup, so I know the results are valid.  I couldn't find any ready-made Ronchi screens, so I tried printing my own.  This screen is 100 lpi.

Wow! That IS a hot mess! What we're they thinkin'? :foreheadslap:




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