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
$ 79.00
ready for shipping in 24
h
Omegon
Blocking Filters Infrared band elimination filter
( 5 / 5 )
$ 24.90
ready for shipping in 24
h
Baader
Blocking Filters Solar Continuum 1.25"
RRP:
$ 123.00
Our price:
$ 122.00
ready for shipping in 24
h
ZWO
Blocking Filters UV/IR 1.25"
$ 92.00
ready for shipping in 24
h
Baader
Blocking Filters Solar Continuum 2"
$ 204.00
ready for shipping in 1-2
weeks
ZWO
Blocking Filters IR-CUT Protect Window ASI D21
RRP:
$ 30.90
Our price:
$ 25.90
ready for shipping in 24
h
Astronomik
2'' IR blocking filter
$ 102.00
ready for shipping in 3-7
days
TS Optics
Blocking Filters UV/IR 1.25"
$ 62.00
ready for shipping in 3-7
days
Lumicon
Infrared blocking filter 1.25''
$ 236.00
ready for shipping in 24
h
Astronomik
Blocking Filters Infrared-cutting filter, SC
$ 144.00
ready for shipping in 24
h
ZWO
Blocking Filters IR-CUT Protect Window ASI D25
$ 30.90
ready for shipping in 3-5
weeks
DayStar
Blocking Filters UV/IR 2"
$ 195.00
ready for shipping in 3-6
months
Astronomik
1.25" IR blocking filter
$ 61.00
ready for shipping in 3-7
days
Artesky
Blocking Filters IR-Cut 2"
$ 60.00
ready for shipping in 3-5
weeks
Astronomik
Blocking Filters Infrared cutting filter, T2
$ 92.00
ready for shipping in 3-7
days
Celestron
Blocking Filters Skyris IR-Cut Filter 1,25"
$ 29.90
ready for shipping in 1-2
weeks