The abbreviation L-RGB stands for Luminance, Red, Green and Blue. These filters are specially designed for astrophotography use. For creating a colour image with a black-and-white camera, an exposure is made through each filter. These are then combined on the computer to form a coloured combined image. The inclusion of the L-filter increases the contrast.
Using a colour camera eliminates the need for such filter sets, but only a black-and-white camera can take full advantage of the chip's resolution and also allows the use of line filters.

Omegon
Filters Pro 1.25'' LRGB filter set
Sale price:
$ 269.00
$ 219.00
ready for shipping in 24
h

Omegon
Filters 1.25'', L- RGB CCD filter set
$ 199.00
ready for shipping in 24
h

Omegon
Pro 2'' LRGB filters
$ 489.00
ready for shipping in 24
h

Optolong
Filters LRGB Filter-Set 1,25
$ 282.00
ready for shipping in 24
h

Optolong
Filters LRGB Filter-Set 2"
$ 402.00
ready for shipping in 24
h

Optolong
Filters Clip Filter for Canon EOS APS-C L-Pro
Our price:
RRP:
$ 282.00
$ 239.00
ready for shipping in 24
h

IDAS
Filters Type 4 BGR+L 52mm
Sale price:
$ 1,090.00
$ 466.54
ready for shipping in 24
h

IDAS
Filters Type 4 BGR+L 36mm
$ 990.00
ready for shipping in 3-5
weeks

IDAS
Filters Type 4 BGR+L 31mm
Sale price:
$ 1,090.00
$ 531.79
ready for shipping in 24
h

Optolong
Filters Clip Filter for Nikon Full Frame L-Pro
( 1 / 5 )
RRP:
$ 304.00
Our price:
RRP:
$ 304.00
$ 259.00
ready for shipping in 24
h

IDAS
Filters Full-Spectrum Clear 48mm
Our price:
RRP:
$ 206.00
$ 184.00
ready for shipping in 3-5
weeks

IDAS
Filters Type 4 BGR+L 1.25"
$ 680.00
ready for shipping in 3-5
weeks

Baader
Filters UV/IR L CMOS 1.25"
$ 71.00
ready for shipping in 24
h

Baader
Filters UV/IR L CMOS 2"
$ 118.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 2"
$ 540.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 2"
$ 170.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 36mm
$ 86.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 1.25"
$ 277.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 36mm
$ 335.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 2"
$ 422.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 1.25"
$ 326.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 36mm
$ 419.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 50.4mm
$ 600.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 31mm
$ 76.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 50.4mm
$ 147.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 50x50mm
$ 191.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 65x65mm
$ 267.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 1.25"
$ 103.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 1.25"
$ 104.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-B CMOS 1.25"
$ 102.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 31mm
$ 115.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 31mm
$ 116.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-B CMOS 31mm
$ 113.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 36mm
$ 124.00
ready for shipping in 24
h

Baader
Filters RGB-G CMOS 36mm
$ 127.00
ready for shipping in 24
h

Baader
Filters RGB-B CMOS 36mm
$ 123.00
ready for shipping in 1-2
weeks