Wich GPC?

[Fedele]

Hi.

i buyed a Baader Ceramic 2" Hershel Prism for my FC100DL, SW120 ED. 

It is impossible to reach focvus with the  Maxbright II binoviewer.

Wich minimum GPC i have to consider?

It will be sufficent  1,25  is sufficient? 2" ?

thanks

Edited July 25, 2021 by Fedele

[michael8554]

Hi Fedele

I've searched for GPC, but can't find anything Astro related, what is it ?

As I understand it, sometimes it is impossible to focus with just a Binoviewer on its own, adding a Herschel wedge will only make it more difficult.

I'd guess a 1.25" Hershel Wedge will have a shorter optical length than a 2" one.

Michael

[Robindonne]

Its probably a lazy way to type: glass path corrector😅

[Robindonne]

Or gaming pc

Edited July 26, 2021 by Robindonne