Blocking filters block either short wavelength UV or long wavelength infrared light. There are also filters that block both of these wavelength regions.
Omegon
Blocking Filters 1.25''UV / IR cut-off filter
$ 69.00
ready for shipping in 24
h
ZWO
Blocking Filters UV/IR 1.25"
$ 40.90
ready for shipping in 24
h
Baader
Blocking Filters Solar Continuum 1.25"
RRP:
$ 139.00
Our price:
$ 138.00
ready for shipping in 24
h
TS Optics
Blocking Filters UV/IR 1.25"
$ 70.00
ready for shipping in 3-7
days
Baader
Blocking Filters Solar Continuum 2"
$ 230.00
ready for shipping in 1-2
weeks
ZWO
Blocking Filters IR ASI D21
$ 28.90
ready for shipping in 24
h
Astronomik
2'' IR blocking filter
$ 115.00
ready for shipping in 3-7
days
Astronomik
1.25" IR blocking filter
$ 69.00
ready for shipping in 24
h
Celestron
Blocking Filters Skyris IR-Cut Filter 1,25"
$ 33.90
ready for shipping in 1-2
weeks
Artesky
Blocking Filters IR-Cut 2"
$ 69.00
ready for shipping in 24
h
Lumicon
Infrared blocking filter 1.25''
$ 301.00
Sale price:
$ 138.18
ready for shipping in 24
h
Astronomik
Blocking Filters Infrared-cutting filter, SC
$ 162.00
Sale price:
$ 83.61
ready for shipping in 24
h
Astronomik
Blocking Filters Infrared cutting filter, T2
$ 104.00
ready for shipping in 24
h
DayStar
Blocking Filters UV/IR 2"
$ 185.00
ready for shipping in 3-6
months
Omegon
Blocking Filters Infrared band elimination filter
( 5 / 5 )
$ 23.90
Product can be shipped as of 01.02.2026
ZWO
Blocking Filters IR ASI D25
$ 34.90
ready for shipping in 3-5
weeks