Jump to content

SkySurveyBanner.jpg.21855908fce40597655603b6c9af720d.jpg

BAADER CLICKLOCK 2INCH /T2 Adapter #2956242


paulastro

Recommended Posts

I purchased this to be able to use my new Celestron Ultima Edge FF 2inch fit, 30mm 70 deg eyepiece with my Baader T2 90 deg BBHS Prism #2456095.  

As all Baader equipment I have ever used, it works perfectly.  Firm grip, easy to use and no vignetting at the edge of the field.  Even better, I think it looks cool too 😅.

The scope in the pics is my Altair Starwave 80 ED-R fpl53 doublet, on a Scopetech Zero altaz 

20230315_113440.thumb.jpg.9e03ee6af301725c61a0d1ae2eb0b122.jpg

20230315_113345.thumb.jpg.2e165ce9c7f66862449d5b214674c3ed.jpg

20230315_115107.thumb.jpg.810fa90481aafda6360521598da41938.jpg

20230315_114344.thumb.jpg.25266e871d8928a39e896b763e9f3180.jpg

 

  • Like 5
Link to comment
Share on other sites

52 minutes ago, Franklin said:

What is the clear aperture of the BBHS prism Paul? Is it the 34mm one? and you say there is no vignetting with the 2" 70deg eyepiece, do you know the field stop diameter? Lovely set up!

Franklin, here is details of the prism, from Baaders info sheets.

20230315_214619.thumb.jpg.6c02f62a063396a90b7dd9c411520780.jpg

The field stop diameter of the 30mm is 30.4mm.  That's correct, no vignetting with the Celestron 30mm Ultima Edge FF 2inch 70 degree eyepiece.

Edited by paulastro
  • Like 4
Link to comment
Share on other sites

13 minutes ago, paulastro said:

The field stop diameter of the 30mm is 30.4mm.  That's correct, no vignetting with the Celestron 30mm Ultima Edge FF 2inch 70 degree eyepiece.

Edited 4 minutes ago by paulastro

Thanks for that Paul. I have the basic T2- 32mm Baader prism and with my 30mm 2" there is a touch of vignetting, not much but it's there, and I've just realized the 32mm is the prism size, it's clear aperture is more like 28mm so that explains it. Shall have to start saving for one of the larger Zeiss spec prisms! 

  • Like 2
Link to comment
Share on other sites

1 hour ago, Franklin said:

Thanks for that Paul. I have the basic T2- 32mm Baader prism and with my 30mm 2" there is a touch of vignetting, not much but it's there, and I've just realized the 32mm is the prism size, it's clear aperture is more like 28mm so that explains it. Shall have to start saving for one of the larger Zeiss spec prisms! 

You're welcome Franklin.  I'd suggest you look out for a used prism, but alas they don't come along very often, I think people tend to keep hold of them.  The best of luck to you.

Regards, Paul

  • Like 2
Link to comment
Share on other sites

  • 2 weeks later...
On 16/03/2023 at 00:02, paulastro said:

You're welcome Franklin.  I'd suggest you look out for a used prism, but alas they don't come along very often, I think people tend to keep hold of them.  The best of luck to you.

Regards, Paul

Hi Tim,

Just came across this thread..

I've had both these prisms, both excellent..the BBHS clear aperture increase is very noticeable when they are shown side by side..

0_IMG_20220606_115959269.thumb.jpg.19743480d9801d06def96a96c1b48695.jpg

BBHS version on the left. 

HTH,

Dave

  • Like 4
Link to comment
Share on other sites

Yes you're right Dave, I use the smaller when I'm only going to use 1.25 and the other for 2 inch.  Baader are about the best firm for giving complete information on all their many diagonals, including the prism sizes.  They have an excellent download just on their diagonals.

It's always irked me a little that most companies don't  tell you the clear aperture of their diagonals.

  • Like 1
Link to comment
Share on other sites

24 minutes ago, paulastro said:

It's always irked me a little that most companies don't  tell you the clear aperture of their diagonals.

Yes, Paul..if they don't tell you, there's probably a reason why..🥴

Dave

  • Like 3
Link to comment
Share on other sites

  • 2 weeks later...
On 24/03/2023 at 08:52, paulastro said:

It's always irked me a little that most companies don't  tell you the clear aperture of their diagonals.

not any other useful details like optical path length, glass path length etc…

Mark

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.