Jump to content

NLCbanner2024.jpg.2478be509670e60c2d6efd04834b8b47.jpg

prism extension


Recommended Posts

Hi all.  Here in Cadiz Spain I´m getting back into stargazing after a few years away.  Glad to say I´ve attracted a spanish neighbour to join in.  But when I use my telescope on high in the sky objects it leaves the eyepiece low down.  Especially as my 90degree prism has broken.  And my body, as well as that of my neighbours´, is not as flexible as it used to be.  So I´m wondering if there are extended prisms and/or is such a good idea.  Any thoughts would as always be very welcome. 

ps Great to be back.  The smile on my neighbour´s face when he first saw Jupiter´s moons was just great.😃

 

  • Like 1
Link to comment
Share on other sites

It sounds to me that you need a new star-diagonal.

It appears that the star-mirror diagonal that came with your Bresser kit...

https://www.bresser.de/en/Astronomy/Telescopes/BRESSER-Messier-AR-127S-635-EXOS-1-EQ4-Hexafoc.html

...is exactly like the one that came with my Explore Scientific 127mm f/15 Maksutov...

1167073324_star-mirrordiagonal3.jpg.17587ef188a941601d43ce5de1bb4e4c.jpg

However, you can make use of a 2" star-mirror, and thereby a 2" eyepiece or two.

I don't understand what you mean, precisely, as to an "extended prism".  You can certainly get a 90° star-prism diagonal in the 1.25" format.

I think it's great that you have an observing pal.

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
  • 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.