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#8326 UnitronCollector

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Posted 14 February 2020 - 11:47 PM

The worst Unitron 4" objective I've seen was on a 100mm model

 

The worst Unitron 4" objective I've seen was on a 100mm model from early 50's. Not very well corrected...

One of the best Unitron 4" objective I've seen was on a 100mm model.   Very well corrected...



#8327 G-Tower

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Posted 15 February 2020 - 12:25 AM

 

The worst Unitron 4" objective I've seen was on a 100mm model

 

The worst Unitron 4" objective I've seen was on a 100mm model from early 50's. Not very well corrected...

One of the best Unitron 4" objective I've seen was on a 100mm model.   Very well corrected...

 

Just proves Unitron like everyone else had quality control issues...Seen plenty of bad ones in 70 years of observing


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#8328 Astrolite

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Posted 15 February 2020 - 02:57 AM

Since my Tasco 10te needed a more substantial mount to go with its new Baader diagonal, yesterday I took a gamble, and an 11 hour drive, on a $350 GM8 with no cables or hand controller. Everything looks great and it's a smooth operator, so I'm optimistic the electronics might turn out okay.

 

 

Very nice mount for your 10TE. Here's my most recent purchase on my AZ EQ-5 mount. It makes for a much more stable platform for the 10TE. The GOTO and tracking, along with a Baader diagonal and 1 1/4" eyepieces really brings out the best in these 10TEs. 

 

DSC_1423.jpg

 

DSC_1427.jpg


Edited by Astrolite, 15 February 2020 - 02:59 AM.

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#8329 Terra Nova

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Posted 15 February 2020 - 12:25 PM

Since my Tasco 10te needed a more substantial mount to go with its new Baader diagonal, yesterday I took a gamble, and an 11 hour drive, on a $350 GM8 with no cables or hand controller. Everything looks great and it's a smooth operator, so I'm optimistic the electronics might turn out okay.

 

I also got an email about that 6" mirror and hardware set. The seller, Cloud Break in Seattle, cleaned the primary and discovered it's a 1971 f4 Cave. I found a small piece of 8", 14ga hot rolled steel pipe which I can buy and get powder coated black for $50. Should I make my cuts and drill for the mirror mounts before the paint job?

 

I also picked up a basketcase Unitron 114 that popped up on letgo while I was on the road. The lens is pretty good and the rest seems reasonably restorable. No box or .965 drawtube and the Unihex is frozen. There's a little bit of oil around the seam between the outer and inner housing and no sign it was epoxed together. It looks pretty clean and even has the spring and ball detent intact. I let it sit in boiling water for about 10 minutes and it remains stuck. Any ideas?

That scope looks great on that GM8! I’ve always loved the look of Losmandy mounts! When they are on KB Wooden tripods that have such a classic look!



#8330 Terra Nova

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Posted 15 February 2020 - 12:31 PM

 

The worst Unitron 4" objective I've seen was on a 100mm model

 

The worst Unitron 4" objective I've seen was on a 100mm model from early 50's. Not very well corrected...

One of the best Unitron 4" objective I've seen was on a 100mm model.   Very well corrected...

 

The 4” (cell with ears) model 152 I used to have had quite good optics. Based on the mount, And other attributes I dated it to be around 1960. I would put it on par with the 1964 Edmund 4” F15 which had a very fine lens.



#8331 fossilhunter

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Posted 15 February 2020 - 01:46 PM

Picked up Jason 60mm x 800mm refractor on ebay for $1 , according to the logo on the tag it was made by Asahi-Pentax. Found the info to identify it on an old cloudy nights thread. Should be a nice scope.


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#8332 CHASLX200

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Posted 15 February 2020 - 04:38 PM

The 4” (cell with ears) model 152 I used to have had quite good optics. Based on the mount, And other attributes I dated it to be around 1960. I would put it on par with the 1964 Edmund 4” F15 which had a very fine lens.

My 1960 M152 was also very good. Thing sat in the boxes for around 25 years and the lens had to be sent to Unitron for cleaning in 1986 when i bought it. It was like it was never used with wrapper on many of the parts.
 


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#8333 Russell Smith

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Posted 15 February 2020 - 07:28 PM

Picked up Jason 60mm x 800mm refractor on ebay for $1 , according to the logo on the tag it was made by Asahi-Pentax. Found the info to identify it on an old cloudy nights thread. Should be a nice scope.

I would like to see some photos. Are you going to start a new thread?



#8334 AstroKerr

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Posted Yesterday, 10:29 PM

gallery_279828_11275_9942.jpg  gallery_279828_11275_10812.jpg   

 

Diamond Z, plastic / chromed plastic, $52 delivered ($20 more than I'd wanted, but...), missing one pin for the tray tab on one leg. Overall condition - one pin shy of NIB. Lovely specularltacular well-I'm-almost-black-if-there's-like-absolutely-no-light interior shiny paint. Dark gray looking at best.

 

Baffle in the OTA in a good place; focuser and ext drawtube baffles look properly placed. H20 & H4 have same shiny 'black' interiors. Plastic diagonal - shiny interior. No current mech slop - nice smooth-n-tight focuser (to include ext draw). Plastic done well.

 

Excellent execution of an EQ-2 class mount & tripod - tight, smooth, delcious - uncommonly nice.

 

3 hrs in the chilly darkness, haze-behind-overcast to find out this f/12.5 is as sharp as my Crescent 60x910 - equates to gorram excellent. A hair/half-hair-hair more color - much less than expeceted. No surprise on grey contrast due to paint. Have Black 3.0 & close equiv spray for that issue. Might pull the baffles during blackening because they aren't / won't be doing anything useful - It's nice to see they are there, though, as 'proper' baffles and not 'stretcher' stops. Clean, honest light path. I rather expected an f/ stretcher but this doesn't seem to be the intent - it doesn't appear to have been repositioned by a user. Just had a short 50mm come in last week / week before that was stopped to 20~25 right behind the objective - ate all the light.

 

The little H4 was also a surprise - no eye relief, but it also didn't kill the view - dim, yes, but it was a dim night - it'll be fine without our gorram weather. ~187x and on a clear night it will be lovely. H20 also a great / above avg performer, as was the diagonal. Kinda impressed they did just chromed plastic - no attempt to bs me with a heavy barrel under carpy lenses - good glass in'em.

 

There was just too much haze & clouds for a proper star test - the H4 needed more light & much less haze - the few stars I did have were peekers-thru and when the H4 went in they became ghost-fluff-blobs. Will try again tonight.

 

So, I'm happy - woulda been happier for twenty less or with ply case, but what I wanted to know was how is this particular model f/12.5 Selsi was going to perform againt similar f/11.66s and f/15s. Those extra 50mm are a definite improvement over std 700mm and in a <Z>. Too cool. ~$3 worth of blackening and it's a peach - peach enough it's earned (on a bad night at that) a place on the 'needs proper case' list. Anyways, those pix are from the listing because mine look like doodoo and I am time-limited (aren't we all). 


Edited by AstroKerr, Yesterday, 10:42 PM.

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#8335 marcyc

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Posted Today, 01:26 AM

Picked this up this afternoon. Haven't had a chance to do anything with it yet, but it is SO CUTE!

 

It is in okay shape for its age, although it needs a good cleaning. Most importantly, though, the objective is dirty but looks to be otherwise fine. A couple of deep gouges in the tube and some missing screws, but all the original eyepieces are there, along with the mount, tripod, and wooden box.

 

Hopefully I will have time to mess with it tomorrow, and I will take more pics then.

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#8336 Senex Bibax

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Posted Today, 07:47 AM

gallery_279828_11275_9942.jpg  gallery_279828_11275_10812.jpg   

 

Diamond Z, plastic / chromed plastic, $52 delivered ($20 more than I'd wanted, but...), missing one pin for the tray tab on one leg. Overall condition - one pin shy of NIB. Lovely specularltacular well-I'm-almost-black-if-there's-like-absolutely-no-light interior shiny paint. Dark gray looking at best.

 

Baffle in the OTA in a good place; focuser and ext drawtube baffles look properly placed. H20 & H4 have same shiny 'black' interiors. Plastic diagonal - shiny interior. No current mech slop - nice smooth-n-tight focuser (to include ext draw). Plastic done well.

 

Excellent execution of an EQ-2 class mount & tripod - tight, smooth, delcious - uncommonly nice.

 

3 hrs in the chilly darkness, haze-behind-overcast to find out this f/12.5 is as sharp as my Crescent 60x910 - equates to gorram excellent. A hair/half-hair-hair more color - much less than expeceted. No surprise on grey contrast due to paint. Have Black 3.0 & close equiv spray for that issue. Might pull the baffles during blackening because they aren't / won't be doing anything useful - It's nice to see they are there, though, as 'proper' baffles and not 'stretcher' stops. Clean, honest light path. I rather expected an f/ stretcher but this doesn't seem to be the intent - it doesn't appear to have been repositioned by a user. Just had a short 50mm come in last week / week before that was stopped to 20~25 right behind the objective - ate all the light.

 

The little H4 was also a surprise - no eye relief, but it also didn't kill the view - dim, yes, but it was a dim night - it'll be fine without our gorram weather. ~187x and on a clear night it will be lovely. H20 also a great / above avg performer, as was the diagonal. Kinda impressed they did just chromed plastic - no attempt to bs me with a heavy barrel under carpy lenses - good glass in'em.

 

There was just too much haze & clouds for a proper star test - the H4 needed more light & much less haze - the few stars I did have were peekers-thru and when the H4 went in they became ghost-fluff-blobs. Will try again tonight.

 

So, I'm happy - woulda been happier for twenty less or with ply case, but what I wanted to know was how is this particular model f/12.5 Selsi was going to perform againt similar f/11.66s and f/15s. Those extra 50mm are a definite improvement over std 700mm and in a <Z>. Too cool. ~$3 worth of blackening and it's a peach - peach enough it's earned (on a bad night at that) a place on the 'needs proper case' list. Anyways, those pix are from the listing because mine look like doodoo and I am time-limited (aren't we all). 

I know <Z> is usually rated as inferior to Towa and many other Japanese optics, but my 60x800 Tanzutsu refractor was sharp as a tack on bright and faint stars, and no obvious colour distortions either on objects like the Moon


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#8337 Defenderslideguitar

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Posted Today, 08:08 AM

Picked this up this afternoon. Haven't had a chance to do anything with it yet, but it is SO CUTE!

 

It is in okay shape for its age, although it needs a good cleaning. Most importantly, though, the objective is dirty but looks to be otherwise fine. A couple of deep gouges in the tube and some missing screws, but all the original eyepieces are there, along with the mount, tripod, and wooden box.

 

Hopefully I will have time to mess with it tomorrow, and I will take more pics then.

Hi Marcy

 Very nice Hyscore 457

  These small refractors  are so underated

   Enjoy


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#8338 AstroKerr

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Posted Today, 08:26 AM

I know <Z> is usually rated as inferior to Towa and many other Japanese optics, but my 60x800 Tanzutsu refractor was sharp as a tack on bright and faint stars, and no obvious colour distortions either on objects like the Moon

I've had enough 'good luck' with <Z> that I don't think it's luck any more. I'm sure there are underperformers as with any brand, but they've been fine for me 'in class'. This one may end up in LTS (long term storage) for a few years with the other collectible, complete, unsullied scopes - so I don't bang'em up. Future presents. I have a couple few <Z>s down there. My Crescent (T) should get put away, but man, I love that thing - it's my 'period reference' for 60 900/910s. Anyhow - you can get a fine collection going with <Z>s & (T)s. Doesn't hurt to throw in a few of the ummm, 'more populars' - but optically they're not hard to match - or haven't been - and for less geld.



#8339 AstroKerr

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Posted Today, 08:31 AM

Picked this up this afternoon. Haven't had a chance to do anything with it yet, but it is SO CUTE!

 

It is in okay shape for its age, although it needs a good cleaning. Most importantly, though, the objective is dirty but looks to be otherwise fine. A couple of deep gouges in the tube and some missing screws, but all the original eyepieces are there, along with the mount, tripod, and wooden box.

 

Hopefully I will have time to mess with it tomorrow, and I will take more pics then.

That looks a real peach! I don't have a really nice 50 like that - gotta fix that. Congrats!


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#8340 G-Tower

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Posted Today, 09:41 AM

Picked up Jason 60mm x 800mm refractor on ebay for $1 , according to the logo on the tag it was made by Asahi-Pentax. Found the info to identify it on an old cloudy nights thread. Should be a nice scope.

How much the shipping?



#8341 Senex Bibax

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Posted Today, 04:47 PM

Speak of the devil, this popped up on Ottawa Kijiji today: <Z> 60*1000 mm. Never seen a 1000 mm version before:

 

https://www.kijiji.c...adId=1487894214

 

I've had enough 'good luck' with <Z> that I don't think it's luck any more. I'm sure there are underperformers as with any brand, but they've been fine for me 'in class'. This one may end up in LTS (long term storage) for a few years with the other collectible, complete, unsullied scopes - so I don't bang'em up. Future presents. I have a couple few <Z>s down there. My Crescent (T) should get put away, but man, I love that thing - it's my 'period reference' for 60 900/910s. Anyhow - you can get a fine collection going with <Z>s & (T)s. Doesn't hurt to throw in a few of the ummm, 'more populars' - but optically they're not hard to match - or haven't been - and for less geld.




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