Jump to content

NLC-Banner.thumb.jpg.acb5ba835b9e8bf0718b90539633017d.jpg

Zeiss Terra ED 8x25 collimation


Recommended Posts

I was surprised to find my 8x25 Terra binoculars out of collimation yesterday - I use them all the time, and they hadn’t been dropped or anything, so not sure of the cause. Presume collimation is not something I can do? Never had this problem before and can’t find any guidance on the web. Appreciate any advice.

A760BCBB-4AAB-4D9D-A8A3-5940441ADD88.jpeg

Link to comment
Share on other sites

My Zeiss 10x50 Zeiss Jenoptem went out of collimation within days of purchase, decades ago now.
Dealer not interested. "Must have dropped them!" I hadn't of course.

Faced with instant dizziness and wasted expense I could ill afford, I loosened the objective lock rings.
Then I put the binos on a firm post and fiddled with the second ring rotation.
Slicing a card across the objectives gave me a blink comparator.
The images were vertically challenged.
Human eyes are poorly designed for such misalignment.
Your mileage may vary.

I had assumed the inner rings would be "wedged." They were.
Aligned the images and relocked the outer rings. Job done.
Decades later they remain perfectly aligned.

What this has to go with your binos I haven't a clue.
I just like dropping terms. Like: "Zeiss" and "Jenoptem" and "misaligned" and "user dizziness" into the same [long] sentence.

I'd start looking for a skilled binocular repairer. They may be Nitrogen gas filled.
The binos not the repairer. Though you never know. :happy72:
Gas purging would seriously complicate your messing about with them.
More likely to do harm than good anyway.

  • Like 1
  • Haha 1
Link to comment
Share on other sites

5 hours ago, Rusted said:

 

I'd start looking for a skilled binocular repairer. They may be Nitrogen gas filled.
The binos not the repairer. Though you never know. :happy72:
 

Just checked and they are 3.2% nitrogen filled apparently.

Binocular repairers that is, not the binoculars.

  • Haha 6
Link to comment
Share on other sites

8 hours ago, Oldfort said:

Have you tried this company?

http://binocular-repair.co.uk/

 

I don't know anything about them other than what's on their website.

4 hours ago, Icesheet said:

Zeiss generally have a good reputation. I would contact them and explain. 

Thanks both - I’ll try Zeiss first but if no joy the repair site is a great find.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.