Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Binoculars

Pages: 1 | 2 | 3 | 4 | 5 | (show all)
Anonymous
Unregistered




Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Rich V.]
      #5633471 - 01/20/13 04:00 PM Attachment (50 downloads)

Quote:

Hi, Sergio, welcome to CN!

...... Here's the work of a gentleman in France who has had good success modifying his Miyauchis to accept other eyepieces. You may find it interesting.......
Rich




Hi, Rich, and everybody, it's not my first time on CN, since 2006 I come in, unlukely I'm unable to reach my old username Sergio E, so i've made a new one.

Europe is a so smoll land, so nearly evrithing about big binoculars, is quite easy to knew.
I lived for many years in France, and Miyauchis were for long time my fixsed idea.
Lukely the Saturn III solved the problem.
Good sky
Sergio


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tamiji Homma
Post Laureate
*****

Reged: 02/24/07

Loc: California, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Andresin150]
      #5633576 - 01/20/13 05:09 PM

Hi Andres,

No, I don't think you can use Docter UWA 12.5 on Kowa Highlander.
Docter UWA 12.5 needs 8.2mm inward focus distance than Kowa 14mm eyepiece. You would need to modify Kowa's visual back (more likely replace with something different).

As I mentioned before, TMB 92SS f/5.5 + Baader Amici Diagonal + Baader MarkV binoviewer + Docter UWA 12.5 gives you 40x, 2.2 degree TFOV, 2.27mm exit pupil.

Yes, it has lesser light gathering capability than Kowa but it gives you wonderful wide view by the Docter UWA 12.5 and it comes with better color correction and going higher power with Barlow lens in case you want to view the Moon, planets...



Tammy


Post Extras: Print Post   Remind Me!   Notify Moderator  
Andresin150
Pooh-Bah
*****

Reged: 08/14/07

Loc: Bogotá - La Calera / Colombia
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Tamiji Homma]
      #5634481 - 01/21/13 08:26 AM

Thanks Tammy

Post Extras: Print Post   Remind Me!   Notify Moderator  
Binomania.it
super member


Reged: 05/20/10

Loc: North Italy
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Andresin150]
      #5656116 - 02/01/13 10:55 AM

Dear Friends, yesterday i've received an update to Mr Reisner, the German Manager of Kowa Europe. Unfortunately he confirmed that is not possible to modify this eye-piece for usage on the Highlander. I am so sorry. Have a nice week end.Piergiovanni

Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Binomania.it]
      #5656330 - 02/01/13 01:04 PM

Thanks for the update, Piergiovanni.

I am still hoping that Kowa will bring at least one additional eyepiece model (somewhere between 70-100x) for the Highlander.

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tamiji Homma
Post Laureate
*****

Reged: 02/24/07

Loc: California, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5659889 - 02/03/13 12:25 PM

Hi Stephan,

It looks like Harry @ Siebert Optics started making eyepieces for Kowa Highlander.

You can pick 4.5, 5.0, 5.5, 6.0, 6.5, 7, 8.5, 9, 10, 14, 18, 19, 20, 26mm.

http://www.siebertoptics.com/Kowa%20eyepieces.html

Tammy


Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Tamiji Homma]
      #5660064 - 02/03/13 02:12 PM

Hi Tammy,

Very interesting news, thank you for bringing this to the attention of us Highlander users!
Looking at the enlarged picture of the Highlander-compatible eyepiece on the webpage of Siebert Optics, it seems that the eyepiece barrel will not be locked by Kowa's proprietary spring-loaded locking mechanism. I will have to check with Harry Siebert about that point and how both eyepieces will be safely retained in the Highlander, when pointed to the zenith.

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
CosmicEclipse
member


Reged: 06/10/11

Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5667107 - 02/07/13 01:36 PM

I just talked to him and I was told the locking mechanism consists of an O-Ring on the eye piece cylinder which kinda adds grip/friction when inserted in the binocular.

Also he can manufacture the eye piece body from either Aluminum or Delrin AKA (Polyoxymethylene).
The glass is made by a 3rd party company.

I'm very tempted to buy the 4.5mm pair....

Maybe Kowa will wake up to this competition and hurry to make their own?


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich V.
Post Laureate
*****

Reged: 01/02/05

Loc: Lake Tahoe area, Nevada, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: CosmicEclipse]
      #5667145 - 02/07/13 01:58 PM

I have 10mm and 15mm Siebert pairs for my Miyauchis. The 10mm has a clever spring loaded delrin ball that holds it in place while the 15mm uses the more conventional O ring. The O ring makes a very tight fit and it's a bit hard to remove the eypiece from the focuser. A little lube would likely help but I don't like the idea of anything oily near the optics.

While the Sieberts don't have a fancy locking mechanism or slick finish like the Kowas or Miyauchis, they do seem to do a good job at a reasonable price. With the Kowas in particular, due to the very high price of their factory eyepieces, the Sieberts will save you a bunch of money; enough for multiple pairs if you like.

Rich


Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Rich V.]
      #5667177 - 02/07/13 02:16 PM

Quote:

A little lube would likely help but I don't like the idea of anything oily near the optics.




I know one thing for sure: My Highlander will never be feeded with e.p's with oily or greasy o-rings and rubber particles from the o-rings itself. Will wait for the real thing from Kowa Japan.

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich V.
Post Laureate
*****

Reged: 01/02/05

Loc: Lake Tahoe area, Nevada, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5667253 - 02/07/13 02:59 PM

Quote:

Quote:

A little lube would likely help but I don't like the idea of anything oily near the optics.




I know one thing for sure: My Highlander will never be feeded with e.p's with oily or greasy o-rings and rubber particles from the o-rings itself. Will wait for the real thing from Kowa Japan.

Stephan




Well, I hope you don't have to wait too long. Good luck!

You don't have to grease the O rings and I don't think rubber particles are an issue. I use a bulb blower to keep the face of the rhomb under the focuser free of dust or other junk. They're just binoculars, you know! Having eyepiece options just makes them more useful... Getting out and using them is the point!

Rich


Post Extras: Print Post   Remind Me!   Notify Moderator  
kcolter
sage
*****

Reged: 06/04/03

Loc: Missouri, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Rich V.]
      #5667401 - 02/07/13 04:16 PM

Are the prices for the Siebert eyepieces the price for a single eyepiece, or the price for a pair? Thanks

Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich V.
Post Laureate
*****

Reged: 01/02/05

Loc: Lake Tahoe area, Nevada, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: kcolter]
      #5667544 - 02/07/13 05:37 PM

They are sold individually.

Rich


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tamiji Homma
Post Laureate
*****

Reged: 02/24/07

Loc: California, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5797712 - 04/14/13 12:07 AM

Hi Stephan,

I decided to try the shortest focal length eyepiece, 4.5mm Harry offers for Kowa.
I'll let you know how it goes.

Tammy


Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Tamiji Homma]
      #5797804 - 04/14/13 02:26 AM

Hi Tammy,

Nice to hear from you. I will be very interested in your findings on the 4.5mm Sieberts.

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich Brady
journeyman


Reged: 04/11/13

Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5797957 - 04/14/13 08:37 AM

Piergiovanni.

Zeis Colliminator? How does that work? Cant find much information about it online.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Rich Brady]
      #5869009 - 05/18/13 09:16 AM

Are there any news with respect to the announced Highlander-adapter for astronomical eyepieces?
I am expecting a Highlander Prominar at the end of May and have three pairs of Takahashi eyepieces, which I would love to try with my new binoculars.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tamiji Homma
Post Laureate
*****

Reged: 02/24/07

Loc: California, USA
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Stellarfire]
      #5895982 - 06/01/13 12:34 PM

Quote:


Nice to hear from you. I will be very interested in your findings on the 4.5mm Sieberts.




Hi Stephan,

They arrived yesterday. Unfortunately, I have to send them back to Harry today. It lacks of inward focus distance a few millimeters with Kowa Highlander.

Harry called me last night and we discussed about it. I'll send them back to him along with Kowa 9mm eyepiece so that he can confirm it works.

He said that he can turn it around quick. I hope I can report how it performs with Kowa Highlander in a few weeks.

PS: I did quick test them against Ethos SX 4.7, closest focal length eyepiece that I have with Pentax 100 SDUF II f/4. It did perform nicely.

Tammy


Post Extras: Print Post   Remind Me!   Notify Moderator  
Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Tamiji Homma]
      #5896022 - 06/01/13 01:05 PM

Thanks Tammy, for the follow-up!

Stephan


Post Extras: Print Post   Remind Me!   Notify Moderator  
Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Re: Kowa Highlander: New Eyepieces in the Pipeline! new [Re: Tamiji Homma]
      #5898157 - 06/02/13 04:40 PM

Quote:

Quote:


Nice to hear from you. I will be very interested in your findings on the 4.5mm Sieberts.




Hi Stephan,

They arrived yesterday. Unfortunately, I have to send them back to Harry today. It lacks of inward focus distance a few millimeters with Kowa Highlander.

Tammy




Hi Tammy
I just called Harry Siebert and talked with him about the Kowa eyepieces. I am curious to try his 6mm (75x) as a step up in magnification from the 9mm Kowas, and maybe later on the 4.5mm. Harry was talking about a spring loaded delrin ball that holds the eyepieces in place. Sounds interesting. Did your 4.5mm ones have this? How did it work? Do you have some pictures of the eyepieces and the locking mechanism you could possibly post?
Also, I am very much looking forward to your first observation report after getting the 4.5mm back.

Heinz

Edited by Ryuno (06/02/13 04:43 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | 5 | (show all)


Extra information
9 registered and 39 anonymous users are browsing this forum.

Moderator:  Knuklhdastrnmr, WOBentley 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 11067

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics