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got a "new to me" WO Zenithstar 80

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#1 rnc39560

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Posted 19 August 2014 - 08:43 PM

 Figured I'd share some pics of my new frac. It was an early b-day gift from my aunt! 

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#2 rnc39560

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Posted 19 August 2014 - 08:44 PM

#2



#3 BRCoz

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Posted 19 August 2014 - 08:46 PM

I like that black and gold.  Congrats.


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#4 rnc39560

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Posted 19 August 2014 - 08:46 PM

#2

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#5 rnc39560

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Posted 19 August 2014 - 08:52 PM

Thanks Bruce! And another pic.

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#6 rnc39560

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Posted 19 August 2014 - 08:54 PM

Orion tripod came with it! :) 

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#7 rnc39560

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Posted 19 August 2014 - 09:06 PM

Now, I have NEVER used one of these! I have lasers and various magnifying optical finders, but no RDF. I think the battery is dead. Which position is "on"? Lol... forgive my ignorance. I'm sure I could find stuff online and you tube, but this is what CN is for! Lol.. besides, I figured y'all could get kick out me not know ANYTHING about a RDF. :)

  Bad pic. Will post another soon.

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Edited by rnc39560, 20 August 2014 - 06:26 AM.


#8 rnc39560

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Posted 19 August 2014 - 09:09 PM

Also, has anyone used the EP's? What did you think of them. My hip is bothering me, and I don't think I'll make first light tonight. :(



#9 rnc39560

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Posted 19 August 2014 - 09:12 PM

I also read about the baffle on some units stopping down the aperture and causing problems. Any one had this issue? 



#10 SteveC

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Posted 19 August 2014 - 09:48 PM

I also read about the baffle on some units stopping down the aperture and causing problems. Any one had this issue? 

It was a gift,  don't worry about it.

 

I had a problem with a WO Zenith Star II, not with the scope you have. It's a long story, and there was a lot going on - aperture vs baffle vs customer service vs apo claims.


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#11 rnc39560

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Posted 19 August 2014 - 10:09 PM

Oh, I'm not knocking it at all! Im glad to have it! Just trying to learn as much as possible about it. As I try to with any scope. 



#12 Guilherme Lessa

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Posted 20 August 2014 - 01:17 AM

Beautiful little scope. Waiting for your first light report!

#13 SteveG

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Posted 20 August 2014 - 01:19 PM

The 0 setting is off. Turning it to 1 has it on the dimmest setting.

 

The other knob on the back is your recital choice. I prefer the single dot.

 

Sadly, this finder requires an Allen wrench to adjust the aiming, but if only used on one scope you will be fine.


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#14 rnc39560

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Posted 20 August 2014 - 03:42 PM

Thanks Steve. I guess people thought I was joking (me being me of course) I actually thought the setting on the far left (the dot) on the reticule selector was off, and the brightness adjustment.... well... was just that. I would've figured it out with a new battery, but figured I'd ask anywho. Yes, I see its Allen wrench ., that's strange. I did watch an Orion ez finder video, its seems easier with knobs. I carry a set of allen wrenches in my ep box anyway though. Thanks! How do you like your ED II?



#15 rnc39560

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Posted 20 August 2014 - 10:19 PM

The 4mm that I got with it won't come to focus. Not enough "in focus", kinda high mag for what the scope is for anyway though. That ep can go to the other case! For the xt8 and c102, and I'll swap one with longer fl from their case. 



#16 SteveG

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Posted 21 August 2014 - 02:42 PM

The 4mm that I got with it won't come to focus. Not enough "in focus", kinda high mag for what the scope is for anyway though. That ep can go to the other case! For the xt8 and c102, and I'll swap one with longer fl from their case. 

Could be as simple as using a different diagonal.  FWIW, I use a 3.5mm with my Zenithstar II (545mm fl).


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#17 SteveG

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Posted 21 August 2014 - 02:51 PM

How do you like your ED II?

 

I purchased it 2 years ago for cold-weather quick looks in winter. It cools down very fast, and provides very nice views. I can see field curvature when using low power, widefields. It also shows a very little CA on bright stars & planets at high power. Planets look pretty good when using a 3.5 mm eyepiece (155x).

 

Mine was one of the very last available, purchased right after they were discontinued. It has knife edge baffles, a beautiful blue anodized finish, and excellent mechanics. The rotating crayford focuser works very well. I think I just wanted one of these before they were gone forever.

 

I didn't use it this past winter - I have so many other scopes I just never got it out. I've since decided to mount it to my 10" Lightbridge, for a super finder. I just need to figure out the best method for mounting it.

 

 

 

Attached File  mounted7reduced.jpg   88.31KB   0 downloads


Edited by SteveG, 21 August 2014 - 02:53 PM.

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#18 bicparker

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Posted 21 August 2014 - 03:48 PM

I also read about the baffle on some units stopping down the aperture and causing problems. Any one had this issue? 

Looking at your pictures, you have a later model scope than the ones that had the problem about which you are talking.

 

Basically, WO used a pre-formed cone with internal baffles inside the tube to baffle the original ZenithStar 80's.  The problem was that the cone's progressive diameter was too small for the objective aperture and it was stopping down the scope from 80mm to something closer to 70mm instead of just baffling it.  This was discovered just shortly after the scope was released in the USA (within the year, at least).  After quite a few postings on the Internet and emails to them, WO sent out a new baffle cone/tube to all who bought the scope to install in the old cone's place.  This corrected the problem.

 

The reason I know about this is because I was one of those buyers and did get and install the replacement cone.  The scope and its little 66mm Petzval brother (which is no longer made) has been a great traveling scope for me for many years now.

 

Congratulations!  That is an excellent gift from your aunt.


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#19 SteveC

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Posted 21 August 2014 - 08:26 PM

 

I also read about the baffle on some units stopping down the aperture and causing problems. Any one had this issue? 

 

 

 

This was discovered just shortly after the scope was released in the USA (within the year, at least).  After quite a few postings on the Internet and emails to them, WO sent out a new baffle cone/tube to all who bought the scope to install in the old cone's place.  This corrected the problem.

 

The reason I know about this is because I was one of those buyers and did get and install the replacement cone. 

 

 

You're welcome, and thank you for confirming what I knew to be true.

I didn't have it so easy.  



#20 rnc39560

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Posted 21 August 2014 - 08:59 PM

 

The 4mm that I got with it won't come to focus. Not enough "in focus", kinda high mag for what the scope is for anyway though. That ep can go to the other case! For the xt8 and c102, and I'll swap one with longer fl from their case. 

Could be as simple as using a different diagonal.  FWIW, I use a 3.5mm with my Zenithstar II (545mm fl).

 

I was using the 2" 45° that came with it. I'm going to try the 2" 90° and see if it makes a difference. I tried the 1.25" 90° and it was the same issue, not enough in focus. 

 Steve, you're using a standard 2" diagonal? Also, I like that BLUE tube! :)



#21 TONGKW

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Posted 22 August 2014 - 06:50 AM

I have an early model of the WO Zenithstar 80 with the 80 mm f/6 achromatic lens and single speed focuser. It is a cute little scope but I find the CA present to be a bit excessive.
Later I bought a new 80 mm f/6.95 ED lens in cell that WO offered to replace the existing 80 mm f/6 achromatic lens in cell.

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Attached File  Zenith 80FD.jpg   194.63KB   0 downloads

 

 


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#22 TONGKW

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Posted 22 August 2014 - 06:53 AM

Due to the longer focal length (555 mm) of the new lens in cell, an extension tube is then needed to work with normal 1.25” and 2” diagonal and eyepiece.

 

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Attached File  WO ZS 80FD Mizar K.jpg   96.96KB   0 downloads


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#23 TONGKW

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Posted 22 August 2014 - 06:54 AM

With the new focal length at 555 mm, a binoviewer can come to focus without a barlow lens.

 

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Attached File  Zenith 80FD Binoviewer.jpg   147.08KB   0 downloads

 

 


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#24 rnc39560

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Posted 22 August 2014 - 12:41 PM

Very nice! 



#25 SteveG

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Posted 22 August 2014 - 05:45 PM

 

 


 Steve, you're using a standard 2" diagonal? Also, I like that BLUE tube! :)

 

 

Yes - standard 2" mirror diagonal is shown in the pick. I also use a Celestron 1-1/4" prism, which requires a bunch of outward focus. Both diagonals will bring all of my eyepieces to focus.








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