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 Oberon Barlow lens 2.5x 2”](/Produktbilder/normal/57296_1/Omegon-Oberon-Barlow-lens-2-5x-2r.jpg)
Omegon
Oberon Barlow lens 2.5x 2”
$ 159.00
ready for shipping in 24
h
![Omegon 2'' adapters with reducer 1.25 ''](/Produktbilder/normal/1044_1/Omegon-2-adapters-with-reducer-1-25-.jpg)
Omegon
2'' adapters with reducer 1.25 ''
$ 29.90
ready for shipping in 24
h
![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
![Omegon 2'' - 1.25'' Twist-lock adapter](/Produktbilder/normal/45633_1/Omegon-2-1-25-Twist-lock-adapter.jpg)
Omegon
2'' - 1.25'' Twist-lock adapter
( 5 / 5 )
$ 79.00
ready for shipping in 24
h
![Omegon Pro Penta Prisma 90° 1.25''](/Produktbilder/normal/57292_3/Omegon-Pro-Penta-Prisma-90d-1-25-.jpg)
Omegon
Pro Penta Prisma 90° 1.25''
$ 239.00
ready for shipping in 24
h
![Omegon 2'' Twist-lock adapter](/Produktbilder/normal/45635_1/Omegon-2-Twist-lock-adapter.jpg)
Omegon
2'' Twist-lock adapter
$ 99.00
ready for shipping in 24
h
![Omegon Pro 1.25'', 45° penta-prism](/Produktbilder/normal/57293_3/Omegon-Pro-1-25-45d-penta-prism.jpg)
Omegon
Pro 1.25'', 45° penta-prism
$ 189.00
ready for shipping in 24
h
![Omegon 45°, 2'' to 1.25'' Amici prism](/Produktbilder/normal/33298_1/Omegon-45d-2-to-1-25-Amici-prism.jpg)
Omegon
45°, 2'' to 1.25'' Amici prism
$ 219.00
ready for shipping in 24
h
![William Optics Diagonal mirror Dura Bright 90° 2"](/Produktbilder/normal/65325_1/William-Optics-Diagonal-mirror-Dura-Bright-90d-2-.jpg)
William Optics
Diagonal mirror Dura Bright 90° 2"
$ 254.00
ready for shipping in 24
h
![Auriga Diagonal mirror 90° 2"](/Produktbilder/normal/68203_1/Auriga-Diagonal-mirror-90d-2-.jpg)
Auriga
Diagonal mirror 90° 2"
$ 220.00
ready for shipping in 1-2
weeks
![TS Optics Diagonal mirror 90° SC/2"](/Produktbilder/normal/75507_1/TS-Optics-Diagonal-mirror-90d-SC-2-.jpg)
TS Optics
Diagonal mirror 90° SC/2"
$ 178.00
ready for shipping in 3-7
days
![Skywatcher Twist Lock 2"/1,25"](/Produktbilder/normal/33418_1/Skywatcher-Twist-Lock-2-1-25-.jpg)
Skywatcher
Twist Lock 2"/1,25"
( 3 / 5 )
$ 34.90
ready for shipping in 1-2
weeks
![Artesky Twist Lock 2" (Skywatcher Newton)](/Produktbilder/normal/76402_1/Artesky-Twist-Lock-2-Skywatcher-Newton-.jpg)
Artesky
Twist Lock 2" (Skywatcher Newton)
$ 111.00
ready for shipping in 24
h
![TS Optics Extension tube M48 / M63 variabel 20.5 - 31mm](/Produktbilder/normal/63920_1/TS-Optics-Extension-tube-M48-M63-variabel-20-5-31mm.jpg)
TS Optics
Extension tube M48 / M63 variabel 20.5 - 31mm
$ 62.00
ready for shipping in 3-7
days
![TS Optics 1.25" to 24.5mm adapter (ZEISS eyepieces)](/Produktbilder/normal/48762_1/TS-Optics-1-25-to-24-5mm-adapter-ZEISS-eyepieces-.jpg)
TS Optics
1.25" to 24.5mm adapter (ZEISS eyepieces)
$ 27.90
ready for shipping in 3-7
days
![TS Optics SC thread to 2'' adapter](/Produktbilder/normal/12677_2/TS-Optics-SC-thread-to-2-adapter.jpg)
TS Optics
SC thread to 2'' adapter
$ 25.90
ready for shipping in 3-7
days
![Artesky Diagonal mirror 90° 1.25"](/Produktbilder/normal/63249_1/Artesky-Diagonal-mirror-90d-1-25-.jpg)
Artesky
Diagonal mirror 90° 1.25"
( 5 / 5 )
$ 84.00
ready for shipping in 3-7
days
![Auriga Diagonal mirror 90° 1.25"](/Produktbilder/normal/68202_1/Auriga-Diagonal-mirror-90d-1-25-.jpg)
Auriga
Diagonal mirror 90° 1.25"
( 5 / 5 )
$ 121.00
ready for shipping in 3-7
days
![TS Optics 1.25" extension tube, 25mm optical path](/Produktbilder/normal/43674_1/TS-Optics-1-25-extension-tube-25mm-optical-path.jpg)
TS Optics
1.25" extension tube, 25mm optical path
$ 25.90
ready for shipping in 3-7
days
![Artesky Diagonal mirror 90° 2"](/Produktbilder/normal/63250_1/Artesky-Diagonal-mirror-90d-2-.jpg)
Artesky
Diagonal mirror 90° 2"
$ 151.00
ready for shipping in 3-5
weeks
![Celestron Diagonal mirror Twist-Lock 2"](/Produktbilder/normal/75615_1/Celestron-Diagonal-mirror-Twist-Lock-2-.jpg)
Celestron
Diagonal mirror Twist-Lock 2"
$ 365.00
ready for shipping in 1-2
weeks
![Explore Scientific Barlow Lens Focal Extender 2x 1,25"](/Produktbilder/normal/54035_1/Explore-Scientific-Barlow-Lens-Focal-Extender-2x-1-25-.jpg)
Explore Scientific
Barlow Lens Focal Extender 2x 1,25"
$ 117.00
ready for shipping in 24
h
![Explore Scientific Star diagonal 99 Percent Reflectivity 2"](/Produktbilder/normal/56067_1/Explore-Scientific-Star-diagonal-99-Percent-Reflectivity-2-.jpg)
Explore Scientific
Star diagonal 99 Percent Reflectivity 2"
$ 206.00
ready for shipping in 1-2
weeks
![Explore Scientific Barlow Lens Focal Extender 3x 1,25"](/Produktbilder/normal/54036_1/Explore-Scientific-Barlow-Lens-Focal-Extender-3x-1-25-.jpg)
Explore Scientific
Barlow Lens Focal Extender 3x 1,25"
( 5 / 5 )
$ 128.00
ready for shipping in 24
h
![TS Optics Diagonal prism T2 90°](/Produktbilder/normal/75626_1/TS-Optics-Diagonal-prism-T2-90d.jpg)
TS Optics
Diagonal prism T2 90°
$ 99.00
ready for shipping in 3-7
days
![Skywatcher Amici prism 45° 2"](/Produktbilder/normal/79561_1/Skywatcher-Amici-prism-45d-2-.jpg)
Skywatcher
Amici prism 45° 2"
$ 132.00
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"
$ 750.00
ready for shipping in 1-2
weeks
![Levenhuk Diagonal mirror Ra 90° 2"](/Produktbilder/normal/78251_1/Levenhuk-Diagonal-mirror-Ra-90d-2-.jpg)
Levenhuk
Diagonal mirror Ra 90° 2"
$ 254.00
ready for shipping in 24
h
![Omegon Pro 90 degree mirror diagonal 2](/Produktbilder/normal/76676_1/Omegon-Pro-90-degree-mirror-diagonal-2.jpg)
Omegon
Pro 90 degree mirror diagonal 2
$ 179.00
ready for shipping in 24
h
![Explore Scientific Barlow Lens Focal Extender 5x 1,25"](/Produktbilder/normal/54037_1/Explore-Scientific-Barlow-Lens-Focal-Extender-5x-1-25-.jpg)
Explore Scientific
Barlow Lens Focal Extender 5x 1,25"
$ 139.00
ready for shipping in 1-2
weeks
![Explore Scientific Barlow Lens 3x2" focal extender](/Produktbilder/normal/60867_1/Explore-Scientific-Barlow-Lens-3x2-focal-extender.jpg)
Explore Scientific
Barlow Lens 3x2" focal extender
( 2 / 5 )
$ 217.00
ready for shipping in 1-2
weeks
![Celestron Camera NexImage 10 Color](/Produktbilder/normal/54096_1/Celestron-Camera-NexImage-10-Color.jpg)
Celestron
Camera NexImage 10 Color
$ 550.00
ready for shipping in 1-2
weeks
![Tecnosky Variabler Flattener 1.0x M48](/Produktbilder/normal/77955_1/Tecnosky-Variabler-Flattener-1-0x-M48.jpg)
Tecnosky
Variabler Flattener 1.0x M48
$ 210.00
ready for shipping in 1-2
weeks
![ZWO D70-M54F adapter](/Produktbilder/normal/77201_1/ZWO-D70-M54F-adapter.jpg)
ZWO
D70-M54F adapter
$ 44.90
ready for shipping in 24
h