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.
![Baader 2" Cool-Ceramic safety Herschel prism P](/Produktbilder/normal/16816_1/Baader-2-Cool-Ceramic-safety-Herschel-prism-P.jpg)
Baader
2" Cool-Ceramic safety Herschel prism P
$ 700.00
ready for shipping in 24
h
![Baader 2" Cool-Ceramic safety Herschel prism V](/Produktbilder/normal/16816_1/Baader-2-Cool-Ceramic-safety-Herschel-prism-V.jpg)
Baader
2" Cool-Ceramic safety Herschel prism V
$ 630.00
ready for shipping in 1-2
weeks