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
$ 278.00
ready for shipping in 3-5
weeks

Optolong
Filters LRGB Filter-Set 2"
$ 396.00
ready for shipping in 24
h

IDAS
Filters Type 4 BGR+L 36mm
$ 980.00
ready for shipping in 3-5
weeks

IDAS
Filters Type 4 BGR+L 52mm
Sale price:
$ 1,080.00
$ 459.76
ready for shipping in 24
h

IDAS
Filters Type 4 BGR+L 31mm
Sale price:
$ 1,080.00
$ 524.06
ready for shipping in 24
h

Optolong
Filters Clip Filter for Canon EOS APS-C L-Pro
Our price:
RRP:
$ 278.00
$ 235.00
ready for shipping in 24
h

Optolong
Filters Clip Filter for Nikon Full Frame L-Pro
( 1 / 5 )
RRP:
$ 300.00
Our price:
RRP:
$ 300.00
$ 256.00
ready for shipping in 24
h

IDAS
Filters Full-Spectrum Clear 48mm
Our price:
RRP:
$ 203.00
$ 182.00
ready for shipping in 3-5
weeks

IDAS
Filters Type 4 BGR+L 1.25"
$ 670.00
ready for shipping in 3-5
weeks

Baader
Filters UV/IR L CMOS 1.25"
$ 70.00
ready for shipping in 1-2
weeks

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

Baader
Filters UV/IR L CMOS 2"
$ 116.00
ready for shipping in 1-2
weeks

Baader
Filters UV/IR L CMOS 50x50mm
$ 188.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 2"
$ 416.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 36mm
$ 413.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 1.25"
$ 321.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 1.25"
$ 273.00
ready for shipping in 1-2
weeks

Baader
Filters LRGB CMOS 50x50mm
$ 690.00
ready for shipping in 1-2
weeks

Baader
Filters RGB CMOS 50,4mm
$ 510.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 36mm
$ 123.00
ready for shipping in 24
h

Baader
Filters RGB-R CMOS 50x50mm
$ 196.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 50.4mm
$ 188.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-B CMOS 31mm
$ 111.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-B CMOS 50.4mm
$ 186.00
ready for shipping in 1-2
weeks

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

Baader
Filters RGB-R CMOS 1.25"
$ 101.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 50.4mm
$ 187.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 36mm
$ 125.00
ready for shipping in 24
h

Baader
Filters RGB-B CMOS 2"
$ 167.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 2"
$ 169.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-G CMOS 31mm
$ 114.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-R CMOS 2"
$ 168.00
ready for shipping in 1-2
weeks

Baader
Filters RGB-B CMOS 36mm
$ 122.00
ready for shipping in 1-2
weeks