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36.4mm to 1.25" diagonal to 6" Dynascope

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#1 strdst

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Posted 09 February 2013 - 12:22 AM

I recently made the plunge. A Vixen adapter that would allow me to plug a 1.25" diagonal directly into some of my classic Japanese refractors. Very cool. Except I didn't have what I would consider a quality 1.25" diagonal... so...

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#2 strdst

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Posted 09 February 2013 - 12:36 AM

one evening I see this box with a few minutes to go before the auction ends. This is going to take a walk on the dark side to acquire. In 1966 I had a fantastic 3" Edmund refractor that I basically destroyed by clam shelling the objective. I've tried to make amends for that, I really have. The 1/2" and 1" eyepieces somehow wound up in the warming oven of the antique wood cook stove we put in the kitchen in 1977. I'm thinking the diagonal did as well. The finder scope? I think I sent the kids off to be pirates or something... I can't find it anywhere in the house... I'm thinking everything was cemented and melted or was lost in the woods. I don't know... except this looked familiar and with promise.

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#3 strdst

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Posted 09 February 2013 - 12:57 AM

It arrived, it is as advertised, in excellent condition in original box. There was this crazy good promotional from Paypal. Paypal pay later. Take $10 off the first purchase. Nothing like money off a pretty good deal already. In this case doing business with the
"tile guy" (dark side element) was pretty sweet. I'm feeling good that this was a find, not a pick-a-part find, but some new old stock. I like the diagonal and fondly remember it coming with my Edmund 3" refractor. I'm thinking a very nice classic connection to my current scopes that accept the adaptation. Here is the Vixen adapter and Edmund diagonal in a Lafayette Arcturus.

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#4 Ducky62

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Posted 09 February 2013 - 01:03 AM

Is there a prism or a mirror in there? Does it have the black paint inside that flakes off and falls on the diagonal when you slip fit an EP or Barlow in it?

#5 strdst

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Posted 09 February 2013 - 02:17 AM

Hmmm, yes prism, like back in the day... Mid 1960's and so far no flaky black paint, There was a few seconds tonight when the sky cleared and then... uncleared. Maybe tomorrow...

#6 strdst

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Posted 09 February 2013 - 02:52 AM

But this post isn't entirely about diagonals. Some scopes don't use 'em. I try to avoid those but every now and again... I Cave. Well not exactly Cave but ... pictures at 11 or 3 or later tomorrow. I bought something that may require joining a Yahoo group :) EP's that came with.

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#7 mustgobigger

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Posted 09 February 2013 - 06:48 AM

do those have the saturn logo on them.

#8 terraclarke

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Posted 09 February 2013 - 11:30 AM

Nice find. I love good prism diagonals. I'll take one over a mirror any day on a long FL refractor.

#9 strdst

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Posted 09 February 2013 - 02:53 PM

do those have the saturn logo on them.


As in a set of five Galoc's?

No.

#10 Ducky62

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Posted 09 February 2013 - 03:49 PM

Did you get a Criterion Dynascope?

Needs :photo:

#11 strdst

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Posted 09 February 2013 - 04:03 PM

Nice find. I love good prism diagonals. I'll take one over a mirror any day on a long FL refractor.


Me too. I have so many .965 diagonals of substance, but till now nothing but a lightweight hybrid to hold 1.25" eyepieces.

Just handling this diagonal brought back a nearly 50 year old memory of using my Edmund 3" refractor to observe (in an averted vision sort of way) M-57. Not what I expected... no central star, and no crazy colors. Disappointed I trained the scope on e Lyrae. It must have been the most calm atmosphere ever in SoCal. Perfect airy discs, the slightest scintillation in the diffraction rings. I probably spent 3/4 of an hour just falling through space that night.

#12 strdst

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Posted 09 February 2013 - 04:13 PM

Did you get a Criterion Dynascope?

Needs :photo:


Wow, you are good!

And I wasted my morning taking photos to present the reverse strip tease... You know a declination axis lock knob here, a feather boa there. Oh well now I'm released to do real stuff like going to the dump to recycle and mop the floor, do a few loads of wash... Thanks Ducky :roflmao:

#13 strdst

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Posted 09 February 2013 - 04:31 PM

Gotta love 1957 Bakelite... Ducky you are soooo in trouble! :lol:

I can only imagine what this would be worth had it been a Chevy Bel Aire in like condition.

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#14 strdst

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Posted 09 February 2013 - 04:32 PM

And those not Galocs...

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#15 strdst

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Posted 09 February 2013 - 05:08 PM

Tripod... yeah hardwood tripod legs... Not what you usually find under a 6" newtonian.

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#16 Ducky62

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Posted 09 February 2013 - 05:14 PM

It was the EPs and the reference to a Yahoo Group that gave it away :lol:

#17 strdst

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Posted 09 February 2013 - 06:06 PM

You ARE good!

The experience in the Yahoo group is so... OK what I'm going to say is... the experience here on CN with photos and linking so easily done it makes for a fantastic, so rich of an experience. The Dynascope group is so different, and perhaps I haven't learned how to use the site yet. Over there it is like writing a Western Union Telegram back in the day. stop. I could use their help but I am not sure I can communicate without :photo: anymore. stop.

If this Dynascope is anywhere near what was advertised in 1957 I'm stoked...1/20 wave optics. One owner and I got to meet him. Retired pediatrician, the most awesome 70 year old! Physically fit, sharp of mind, firm on the selling price. Well 2 out of 3 ain't so bad.

nice endcaps, dust caps.

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#18 gelkin

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Posted 09 February 2013 - 08:03 PM

Oh no Kieth. You are going to run both sides of the fence now. A switch hitter? :lol: :roflmao: :lol: Those old Criterions are very cool.

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#19 strdst

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Posted 09 February 2013 - 09:21 PM

Gerald...HI!

Yes, but two counterweights shy of yours. It was only an hour drive away. As much as I miss the anticipation of the UPS guy, the strapping tape and packing peanuts all over the place, this guy is HEAVY (compared to my RV-6)! Glad I could look/buy/and haul on the same day and save the shipping costs. A few years ago I "won" a maybe 1980's RV-6 on eBay for $160. Afterword the seller apologetically re-thunk the shipping at $180. I could have bailed on the transaction then but wanted to try it out, so I paid up. I gotta say these scopes with the mirrors are pretty amazing. Kinda ugly but still optically amazing :lol:

The afternoon I chose to go see/buy/haul this telescope was on a Monday. I had been sick over the weekend with a respiratory flu and while feeling somewhat better chose to take a rare sick day from work. By the time I made contact with the seller it was getting late... and cold. The OTA only fit in my car if I removed the roof. Honda Del Sol's are great in the summer, but...a mid 30's drive home only extended the sore throat for a week. Small price to pay. :lol:

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#20 strdst

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Posted 10 February 2013 - 05:43 PM

Playing with the new Criterion today. The focuser rough draw tube was totally stuck within the focuser. I remembered to not have the scope standing on end, mirror down, as I took the pressure off of the rack and pinion gear just in case the brass tubes fell through, which they did. Although the OTA was on its side I got lucky and it just missed the secondary mirror. Lots of liquid wrench and steel wool has got things sliding snugly again.

The seller included a Goodwin Resolving Power Lens with the telescope. Perhaps more interesting than the Barlow itself is the eight pages of typewritten instructions than it was rolled up in.

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#21 Ducky62

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Posted 10 February 2013 - 07:47 PM

8 pages of instructions for a Barlow? What could it possibly say? You ought to scan and send the file to Robert Provin.

#22 strdst

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Posted 10 February 2013 - 09:59 PM

8 pages of instructions for a Barlow? What could it possibly say?


Oh pretty much everything!

#23 strdst

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Posted 10 February 2013 - 10:30 PM

I took ol' Dyna up to the lake today for an outing. Had the weather been better a picnic would have been nice... Here are a few more pictures...Being a refractor kinda guy I'm still puzzled where Dyna's good side might be. lol.

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#24 strdst

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Posted 10 February 2013 - 10:43 PM

OK, lake is a stretch this time of year. A flood control dam thoroughly drawn down ready for the next wet weather event. Next June through September it will be full of water and boats again. First and only time I observed Mercury was from up here on the dam face. And the Leonid shower in 2000 or 2001 was absolutely crazy up here with a horizon to horizon view.

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#25 strdst

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Posted 10 February 2013 - 10:45 PM

Some detail...

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