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.
![Tecnosky Variabler Flattener 1.0x M48](/Produktbilder/normal/77955_1/Tecnosky-Variabler-Flattener-1-0x-M48.jpg)
Tecnosky
Variabler Flattener 1.0x M48
$ 211.00
ready for shipping in 1-2
weeks
![Tecnosky Variabler Flattener 1.0x Full Frame](/Produktbilder/normal/76431_2/Tecnosky-Variabler-Flattener-1-0x-Full-Frame.jpg)
Tecnosky
Variabler Flattener 1.0x Full Frame
$ 333.00
ready for shipping in 1-2
weeks
![Tecnosky Flattener/Reducer 0,8x OWL 180 SLD](/Produktbilder/normal/80878_1/Tecnosky-Flattener-Reducer-0-8x-OWL-180-SLD.jpg)
Tecnosky
Flattener/Reducer 0,8x OWL 180 SLD
$ 1,560.00
ready for shipping in 1-2
weeks
![William Optics Full-Frame Flattener/Reducer 0.72x](/Produktbilder/normal/70631_1/William-Optics-Full-Frame-Flattener-Reducer-0-72x.jpg)
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 990.00
ready for shipping in 3-5
weeks
![Lacerta Teleconverter Teleextender 5x 1.25"](/Produktbilder/normal/65692_1/Lacerta-Teleconverter-Teleextender-5x-1-25-.jpg)
Lacerta
Teleconverter Teleextender 5x 1.25"
$ 222.00
ready for shipping in 1-2
weeks
![Vixen Teleconverter Extender PH Kit for R200SS](/Produktbilder/normal/83404_1/Vixen-Teleconverter-Extender-PH-Kit-for-R200SS.jpg)
Vixen
Teleconverter Extender PH Kit for R200SS
$ 670.00
ready for shipping in 1-2
weeks
![Tecnosky FullFrame 2,5" RED 130 V2](/Produktbilder/normal/72270_1/Tecnosky-FullFrame-2-5-RED-130-V2.jpg)
Tecnosky
FullFrame 2,5" RED 130 V2
$ 266.00
ready for shipping in 1-2
weeks
![TS Optics 1.0x2" coma corrector](/Produktbilder/normal/51946_1/TS-Optics-1-0x2-coma-corrector.jpg)
TS Optics
1.0x2" coma corrector
$ 367.00
ready for shipping in 24
h
![Artesky Reducer 0.8x Full Frame RC](/Produktbilder/normal/70076_1/Artesky-Reducer-0-8x-Full-Frame-RC.jpg)
Artesky
Reducer 0.8x Full Frame RC
$ 550.00
ready for shipping in 24
h
![Tecnosky Reducer 0.67x](/Produktbilder/normal/69535_1/Tecnosky-Reducer-0-67x.jpg)
Tecnosky
Reducer 0.67x
$ 211.00
ready for shipping in 1-2
weeks
![TS Optics Flattener/Reducer 0.8x 2"](/Produktbilder/normal/65044_1/TS-Optics-Flattener-Reducer-0-8x-2-.jpg)
TS Optics
Flattener/Reducer 0.8x 2"
$ 195.00
ready for shipping in 3-7
days
![Lacerta Teleconverter Teleextender 3x 1.25"](/Produktbilder/normal/65691_1/Lacerta-Teleconverter-Teleextender-3x-1-25-.jpg)
Lacerta
Teleconverter Teleextender 3x 1.25"
$ 177.00
ready for shipping in 1-2
weeks
![Tecnosky Adjustable Flattener Reducer FF 0.8x](/Produktbilder/normal/68932_1/Tecnosky-Adjustable-Flattener-Reducer-FF-0-8x.jpg)
Tecnosky
Adjustable Flattener Reducer FF 0.8x
$ 332.00
ready for shipping in 1-2
weeks
![TS Optics Flattener/Reducer 0,8x 2,5"](/Produktbilder/normal/69319_1/TS-Optics-Flattener-Reducer-0-8x-2-5-.jpg)
TS Optics
Flattener/Reducer 0,8x 2,5"
$ 444.00
ready for shipping in 3-7
days
![APM Teleconverter Coma-correcting telecentric Barlow 1.5x 2"](/Produktbilder/normal/59296_1/APM-Teleconverter-Coma-correcting-telecentric-Barlow-1-5x-2-.jpg)
APM
Teleconverter Coma-correcting telecentric Barlow 1.5x 2"
$ 560.00
ready for shipping in 1-2
weeks
![TS Optics 2'' CCD reducer, 0.67X for RC telescopes up to f/8](/Produktbilder/normal/53968_1/TS-Optics-2-CCD-reducer-0-67X-for-RC-telescopes-up-to-f-8.jpg)
TS Optics
2'' CCD reducer, 0.67X for RC telescopes up to f/8
$ 284.00
ready for shipping in 3-7
days
![Omegon Pro Reducer 0.75x für RC](/Produktbilder/normal/53822_1/Omegon-Pro-Reducer-0-75x-fuer-RC.jpg)
Omegon
Pro Reducer 0.75x für RC
$ 119.00
ready for shipping in 24
h
![Omegon Pro Coma Corrector for Astrograph](/Produktbilder/normal/53821_1/Omegon-Pro-Coma-Corrector-for-Astrograph.jpg)
Omegon
Pro Coma Corrector for Astrograph
$ 119.00
ready for shipping in 24
h