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Unitron 128

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#1 Bonco2

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Posted 06 June 2020 - 05:56 PM

I think there are a few 60mm classics that are at the top of the heap as far as mechanical and optical quality. Me thinks the Zeiss is number one from what I've read, but the Unitron is close by. Personally I think the Unitron is more "classical"  in appearance and mine has excellent optics but I've never viewed thru a Zeiss. I think Zeiss optics are more consistent in optical quality. The Unitrons probably not so consistent. But mine which is from the end of production is a performer and the best 60mm I've ever viewed thru.

Bill

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#2 Star Ship

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Posted 06 June 2020 - 07:06 PM

Worked all summer some time back in the 50's for my 2.4 inch Unitron. It is one of my best scopes. I had it out last night following Jupiter's moons.  Great set up you have. My scope is on an AltAz.  I have a 4inch Unitron I just put in GEM mount, but the seeing here is southern Az is crap now; so the 2.4 works fine. 


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#3 starman876

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Posted 06 June 2020 - 07:19 PM

I love the Unitron 128 mount.  I once put every possible option on one.   The sun shields, larger finder, sliding counterweight plus the motor drive.  Wish I still had the pictures. 


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#4 PawPaw

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Posted 06 June 2020 - 08:23 PM

Bill.....Beautiful 60mm classic......I started out with a 60mm in the late 60's, although not a unitron, it has taken me until early this year to re-discover my roots.  These classic 60mm like the Unitrons were at the time out of my league but as with many things in life re-discovering your roots is most enjoyable......Thank you for this thread as I just happen to have a early 128 on the way.   

 

Don


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#5 combatdad

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Posted 07 June 2020 - 05:42 AM

A fully accessorized Model 128 on display at NEAF 2016.  Enjoy!

 

Dave

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#6 photiost

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Posted 07 June 2020 - 06:43 AM

Beautiful instrument !!



#7 starman876

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Posted 07 June 2020 - 08:31 AM

A fully accessorized Model 128 on display at NEAF 2016.  Enjoy!

 

Dave

That is what I am talking about.  Beautiful scope.  How many 60mm scopes could look like that?


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#8 PawPaw

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Posted 07 June 2020 - 08:37 AM

How many boxes can one Unitron 128 have?  waytogo.gif


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#9 combatdad

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Posted 07 June 2020 - 09:21 AM

How many boxes can one Unitron 128 have?  waytogo.gif

Never too many smile.gif

 

Dave


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#10 starman876

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Posted 07 June 2020 - 09:25 AM

How many boxes can one Unitron 128 have?  waytogo.gif

let's see, one for the OTA, one for the tripod, one for the mount, one for unihex, one for the eyepieces,  and of course you need one for the larger finder.  However, I have never seen one for the larger finder.    All those extras require uniclamps to connect to the scope.  


Edited by starman876, 07 June 2020 - 09:26 AM.

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#11 Star Ship

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Posted 07 June 2020 - 04:27 PM

The question is who has an original lens cap?  Dah, dah, DAH.  Value beyond gold. Bitcoin pales in comparison.smile.gif



#12 Terra Nova

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Posted 07 June 2020 - 04:36 PM

Worked all summer some time back in the 50's for my 2.4 inch Unitron. It is one of my best scopes. I had it out last night following Jupiter's moons.  Great set up you have. My scope is on an AltAz.  I have a 4inch Unitron I just put in GEM mount, but the seeing here is southern Az is crap now; so the 2.4 works fine. 

I love my 2.4" Unitron alt-az model (model 114) from 1955. Of the half dozen or so Unitrons I've had over the years, it's the one I decided to keep. I'm the second owner.


Edited by Terra Nova, 08 June 2020 - 04:13 PM.

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#13 starman876

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Posted 07 June 2020 - 05:51 PM

The question is who has an original lens cap?  Dah, dah, DAH.  Value beyond gold. Bitcoin pales in comparison.smile.gif

I wonder who has those original caps whistling.gif   But now knowing their true value might never let them gocool.gif


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#14 Star Ship

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Posted 07 June 2020 - 07:56 PM

We know where you live.  Va.  But really hats off to that collection of yours.


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#15 starman876

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Posted 07 June 2020 - 08:04 PM

We know where you live.  Va.  But really hats off to that collection of yours.

I have mean dogs. come visit they have not been fed in a while lol.gif


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#16 Bonco2

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Posted 08 June 2020 - 04:03 PM

Paw Paw,

Give us a report of your impressions once you receive  your 128.

Bill


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#17 PawPaw

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Posted 08 June 2020 - 07:06 PM

Paw Paw,

Give us a report of your impressions once you receive  your 128.

Bill

Absolutely I look forward to it........It should arrive next week.  I have two  new 60mm acquisitions for comparison.....I don't expect any surprises with the mechanics just that solid Unitron mountiness......is that a word?  waytogo.gif



#18 ccwemyss

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Posted 08 June 2020 - 09:11 PM

I think only in reference to the Canadian constabulary. 

 

Chip W. 


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#19 Terra Nova

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Posted 08 June 2020 - 09:47 PM

funnypost.gifroflmao.gif

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#20 Russell Smith

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Posted 08 June 2020 - 09:54 PM

Dudley do right is my handle.
Well it was in 1976
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#21 Terra Nova

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Posted 09 June 2020 - 08:32 AM

Dudley do right is my handle.
Well it was in 1976

Natasha here darlink!

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Edited by Terra Nova, 09 June 2020 - 08:34 AM.

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#22 Russell Smith

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Posted 09 June 2020 - 02:11 PM

Too funny Terra.

I recently sold my 128 to a fellow CN member.

Perhaps they will join in.

Russ

The now gone 128.

 

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Edited by Russell Smith, 09 June 2020 - 04:27 PM.

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#23 PawPaw

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Posted 25 June 2020 - 09:34 AM

Last night I confirmed that Dudley do right likely helped design the Unitron 128 mount waytogo.gif

 

The original OP has agreed to let me piggyback on his thread.....Thanks Bill!

 

The 128 arrived well packed and after 2 weeks of travel everything including the wood cabinets arrived safely.  After a general cleaning of the OTA and mount....I did not touch the objective, the first light arrived last night.  The objective is in nice shape with a few dew spots and dust but spacers intact.  The AR coating is intact and nice shape as well.  As you can see it is a older cell style.....I did check the newton rings under a CFL and they are off center but I decided to leave as is for now.  The mount itself is missing the original counterweight but in great shape with everything else intact and original as far as I can tell. The replacement weights are interesting to say the least.    Not surprising  the mount is a joy to use and very smooth....the slow motion controls work very nice.  The metal feet are intact but need some attention on their connection to the tripod.....You can tell this scope was enjoyed a lot but not abused.  The wood tripod has the original spreader and besides the honest dings and dents is in good shape.  A little murphy's oil soap is in order.

 

I need to clean up the finder optics but it is functional and the eyepiece has a double cross line reticle and the finder tube is chromed brass very heavy.  The dewshield for the main OTA is also brass.  

 

I started out the evening early with the crescent moon using a recently cleaned star diagonal and 25mm and 18.5mm unitron eyepieces.  Very nice!  As vega emerged it was time to view some diffraction rings......I used three  eyepieces; a 18.5 Unitron and a 12.5 Unitron and a 12.5  Goto (both cleaned and ready).  I did not have a eyepiece in .0965 that matched the F/15 FL to use for this so I decided to try two that were close.  My comparison scope last night was a GOTO 105 that delivers, in my opinion,  a very good star test.    Well with no collimation or cleaning of the 128 objective all I can say is "amazing"!  I moved onto Deneb in Cygnus and then Izar in Bootes......The 128 held its own against the GOTO with just a very slight edge to the 105 (lens not cleaned but collimated)  So after collimation of the 128 a rematch is in order.  As for color correction the 128 has  a purplish hue.....the 105 at F/20 has less color but still a tiny hint. 

 

My impression of this 128 is the lens performed much much better than I expected.  (The only thing I did to this lens before tesing was to loosen the retaining screws so no pinched optics)   In comparison to the 60mm F 700mm  Unitrons that I have viewed with this 128 has better color correction.  The mount no doubt is a keeper and I look forward to trying the 700mm models on it.  

 

My disclaimer here on star testing comparisons is:  It is fun at least for me......I cannot state that what I see you will......but we all know about the variables of star testing........I look forward to DPAC testing of all my objectives in the future but I for one certainly am entertained by trying to compare two objectives  with the same eyepieces and star diagonals on a summer evening with the stars waiting.....Enough of that!

 

Unitron 128 waytogo.gif waytogo.gif waytogo.gif waytogo.gif

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Edited by PawPaw, 25 June 2020 - 09:42 AM.

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#24 PawPaw

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Posted 25 June 2020 - 09:43 AM

The complete package as found......Even had the duetron.

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#25 starman876

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Posted 25 June 2020 - 10:37 AM

great looking Unitronwaytogo.gif




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