Filters are generally used in astronomy for contrast enhancement or for safely observing the sun. Whether galaxies, nebulae or the planets of our solar system - the various types of filters let you get a lot more out of your telescope than you may perhaps have realized.
Area of application
Moon filters & Polarizing filters
Colour filters
Nebulae filters
Sun filters
Filter wheels & Filter sliders
EOS-Clip
Find out now!
Top brands
IDAS
Filters Type 4 BGR+L 31mm
$ 1,170.00
ready for shipping in 24
h
IDAS
Filters Type 4 BGR+L 52mm
$ 1,070.00
ready for shipping in 24
h
Omegon
Filters Pro Veil H-Alpha 3nm 2''
$ 319.00
ready for shipping in 24
h
Optolong
Filters L2 Dual-Combo Set 2"
$ 680.00
ready for shipping in 3-7
days
Optolong
Filters SHO Filter Kit 1,25"
$ 590.00
ready for shipping in 24
h
Optolong
Filters SHO 3nm 36mm
$ 990.00
Product can be shipped as of 15.01.2026
Omegon
Electronic filter wheel EFW 5x2''
$ 339.00
ready for shipping in 24
h
Chroma
Filters H-Alpha 1,25", 3nm
$ 1,040.00
ready for shipping in 24
h
Baader
Filters H-alpha/OIII/SII CMOS f/2 Ultra-Highspeed 65x65mm
$ 1,940.00
ready for shipping in 1-2
weeks
STC
Filters Astro Duo Narrowband Filter 2"
$ 660.00
ready for shipping in 24
h
Optolong
Filters SII 3nm 2''
$ 453.00
ready for shipping in 24
h
Baader
Filters H-alpha/OIII/SII CMOS f/3 Ultra-Highspeed 65x65mm
$ 1,830.00
ready for shipping in 1-2
weeks
Omegon
Filters Pro Veil H-Alpha OIII 7nm 2''
$ 199.00
ready for shipping in 24
h
Baader
Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 65x65mm
$ 1,830.00
ready for shipping in 1-2
weeks
Optolong
Filters L-eNhance 2"
( 5 / 5 )
$ 255.00
ready for shipping in 24
h
Baader
Filters UBVRI Bessel 65x65mm
$ 1,700.00
ready for shipping in 1-2
weeks
Optolong
Filters L-eNhance APS-C EOS Clip
( 3.5 / 5 )
$ 279.00
ready for shipping in 24
h
Omegon
Filters Pro 1.25'' LRGB filter set
$ 249.00
ready for shipping in 24
h
Optolong
Filters SHO Filter Kit 7nm 2"
$ 810.00
ready for shipping in 3-5
weeks
Baader
Filters OIII CMOS f/2 Highspeed 65x65mm
$ 421.00
ready for shipping in 24
h
Omegon
Pro Electronic filter wheel EFW-L 7x2''
$ 419.00
ready for shipping in 24
h
Optolong
Filters SHO 3nm 2"
$ 1,170.00
Product can be shipped as of 15.01.2026
Baader
Filters H-alpha/OIII/SII CMOS f/2 Ultra-Highspeed 50x50mm
$ 1,480.00
ready for shipping in 1-2
weeks
SBIG
self-guiding Filter Wheel FW8G-STT
$ 3,120.00
ready for shipping in 24
h
ZWO
Filters Narrowband Filter Set H-alpha, SII, OIII 2"
$ 1,170.00
ready for shipping in 24
h
Baader
Filters f/2 Ultra-Highspeed H-alpha/OIII/SII CMOS 50.4mm
$ 1,390.00
ready for shipping in 1-2
weeks
Optolong
Filters L-Ultimate 2"
$ 418.00
ready for shipping in 24
h
Omegon
2'' filter wheel
( 3 / 5 )
$ 179.00
ready for shipping in 24
h
Omegon
1.25'' filter wheel
$ 179.00
ready for shipping in 24
h
Optolong
Filters L-Pro Clip Sony Full Frame
$ 314.00
ready for shipping in 24
h
Baader
Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 50,4mm
$ 1,320.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha/OIII/SII CMOS f/3 Ultra-Highspeed 50,4mm
$ 1,320.00
ready for shipping in 1-2
weeks
ZWO
Filters Filter set H-alpha, SII, OIII 36mm unmounted
$ 820.00
ready for shipping in 24
h
Omegon
Filters Pro OIII 7nm Filter 1,25"
$ 189.00
ready for shipping in 24
h
Omegon
Filters Pro 2'' SII CCD filter
( 1 / 5 )
$ 179.00
ready for shipping in 24
h
Omegon
Filters Pro SII 7nm Filter 1.25"
$ 189.00
ready for shipping in 24
h