Jump to content

 

1825338873_SNRPN2021banner.jpg.68bf12c7791f26559c66cf7bce79fe3d.jpg

 

What to Expect


Fishman
 Share

Recommended Posts

Hi I have just come by a pair of DIY binoculars and mount that were initially built by someone from the East Midlands and I am in the process of refurbishing them. The objectives are 100mm and f15 which makes the binoculars just over 40" in length. They can accept 1-1/4 or 2" eyepieces.

I would be particularly interested to hear from anyone who can help fill me in the history of these one offs. Alternatively has any one any experience of what I can expect to see with these once I get them back together and aligned properly?

Cheers

Fisher

Link to comment
Share on other sites

Anything from a blurry mess to beautiful crisp images of the planets I imagine. It's anyone's guess and depends on a lots of variables such as how well figured the objectives are, what sort of lens configuration it is (simple/achromat), what coatings, if any, they have and how well aligned it all is.

Do you hve a maker's name?

Good luck with the build and keep us posted on how it turns out.

Edited by haitch
Link to comment
Share on other sites

100mm f/15 binoculars sounds interesting.

Suspect they would be a bit heavy with 2" eyepieces. Can two 2" eyepieces actually get close enough for a person to look through?

If reasonable you should get some good views, especially clusters, simply put you have a 4" lens at the front collecting light.

Collimating them could be the most difficult aspect, and keeping them collimated equally a problem.

If it all fails turn them into two 4" scopes for informal use.

Any pictures of them?

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

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • 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.