Jump to content


BBHS 2" Prism Diagonal - Does it have a barrel stop?

Recommended Posts

Hi All,

Anyone have the Baader 2456117 (2" BBHS Prism Diagonal)?

Do you know if it has a barrel stop of some kind to prevent long eyepiece barrels touching the prism?

And if so, how long does a barrel have to be before it hits the stop?

The diagonal comes with a baader clicklock so I kind of assumed it would have a stop (other clicklocks I have come across all have them) - but this one doesn't look like it does.... maybe I'm doing something wrong? :icon_scratch:

Thanks :thumbright:

  • Like 1
Link to post
Share on other sites

I have the 2” bbhs prism diagonal. It does not have a stop as such and I was very concerned as you are however, I use ethos 6 & 8 with 2” barrel extenders and if you carefully slide them into the click lock they do stop short of hitting the prism. Also it’s safe with the ethos 13 without the 2” barrel extender and the 1.25” barrel is clear of the prism. It’s not a barrel stop as such but more of a slight lip that you can feel as you slip the eyepiece in. I use mine like this all the time. This was something I had to find out for myself but I’m quite happy with this and no longer worry about hitting the glass. Hope this helps. If you have any questions about this please ask as I found it hard to get any answers when I was in the same situation as you are. 

  • Thanks 1
Link to post
Share on other sites
53 minutes ago, Dantooine said:

if you carefully slide them into the click lock they do stop short of hitting the prism

Thanks @Dantooine, that's very helpful. 

I had noticed that the eyepiece stops initially but then continues in again when "encouraged".  Up to now I have been "encouraging" them in right down to the shoulder to ensure they are firmly and squarely seated.  Now I know better I'll change my behaviour and I'm pretty sure I will, as you have, get comfortable that I'm not going to damage the prism.

Edited by globular
  • Like 1
Link to post
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.