Filter thread
![Left a 1.25" and right a 2" eyepiece with filter attached](/CMS/images/text/glossary/Okular Filtergewinde.jpg)
Use filters for your observing: most astronomical eyepieces offer you the option to use moon filters, polarizing filters, colour or nebula filters. This will improve your observing experience and reveal a number of details that were previously not visible to you. At the lower end of the eyepiece sleeve of your 1.25" and 2" eyepieces you will find a female thread. You can use this to attach any filter from our range.
![Omegon 1.25", 90° Amici prism](/Produktbilder/normal/54412_1/Omegon-1-25-90d-Amici-prism.jpg)
Omegon
1.25", 90° Amici prism
( 5 / 5 )
$ 29.90
ready for shipping in 24
h
![Omegon 1,25'' Amici Prism 90°](/Produktbilder/normal/14172_1/Omegon-1-25-Amici-Prism-90d.jpg)
Omegon
1,25'' Amici Prism 90°
( 5 / 5 )
$ 169.00
ready for shipping in 24
h
![Omegon Amici prism 90° 2"](/Produktbilder/normal/74413-(1)/Omegon-Amici-prism-90d-2-.jpg)
Omegon
Amici prism 90° 2"
$ 269.00
ready for shipping in 24
h
![Baader Amici prism ClickLock BBHS® 90° 2"](/Produktbilder/normal/47487_1/Baader-Amici-prism-ClickLock-BBHSr-90d-2-.jpg)
Baader
Amici prism ClickLock BBHS® 90° 2"
$ 720.00
ready for shipping in 24
h