LRGB Filters

LRGB imaging separates the job of recording detail from the job of recording colour. The luminance channel, unfiltered and deep, carries the structure; the red, green and blue channels supply colour at lower resolution. Done well it produces images sharper than a colour sensor of the same pixel count can reach. David Astro carries LRGB filters in Canada, held in stock for fast domestic shipping.

Set matching matters more than any single filter's specification. Tell us your camera and wheel and we will recommend a set and the sizes it needs.

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$450.00 USD - $750.00 USD

$450.00 USD

Antlia LRGB Dark Series Filter Set

Complete LRGB (Luminance, Red, Green, Blue) Filter Set High Peak Transmission: ≥97% for L, R, G and ≥95% for B channels Deep Out-of-Band Blocking ...

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$450.00 USD - $750.00 USD

$450.00 USD

$300.00 USD - $600.00 USD

$300.00 USD

Antlia LRGB-V Pro Filter Set

Four-Filter LRGB Complement Engineered for Monochrome CMOS/CCD Cameras Anti-Reflection Coated Optics Available in 5 Mounted and Unmounted Sizes ...

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$300.00 USD - $600.00 USD

$300.00 USD

$500.00 USD - $680.00 USD

$500.00 USD

Antlia LRGBR+ Dark Series Filter Set

Five-filter LRGBR+ Dark Series set Full-spectrum 390nm to 1000nm spectral coverage Dedicated R+ filter captures near-infrared signal from 700-1000...

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$500.00 USD - $680.00 USD

$500.00 USD

$391.00 USD - $1,063.00 USD

$391.00 USD

Baader LRGB Filter Set - CMOS-Optimized

Designed specifically to eliminate reflections and halos with modern CMOS sensors Balanced RGB transmission enables simplified 1:1:1 exposure rati...

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$391.00 USD - $1,063.00 USD

$391.00 USD

Baader Planetarium RGB B-Filter 1.25" – CMOS-optimized

$123.00 USD - $360.00 USD

$123.00 USD

Baader Planetarium RGB B-Filter – CMOS-optimized

Available in 1.25" & 2" Mounted, Round Unmounted and Square Sizes Blue (B) Channel for LRGB Imaging Optimized for Modern CMOS Sensors Designed...

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$123.00 USD - $360.00 USD

$123.00 USD

Baader Planetarium RGB Filter Set 1.25" – CMOS-optimized

$333.00 USD - $907.00 USD

$333.00 USD

Baader Planetarium RGB Filter Set – CMOS-optimized

Set of three Red, Green, and Blue (RGB) filters Optimized for modern CMOS sensors to eliminate reflections Available in 1.25" & 2" mounted, 31...

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$333.00 USD - $907.00 USD

$333.00 USD

Baader Planetarium RGB G-Filter 1.25" – CMOS-optimized

$123.00 USD - $360.00 USD

$123.00 USD

Baader Planetarium RGB G-Filter – CMOS-optimized

Green (G) Component for LRGB Color Imaging Available in 1.25" & 2" Mounted, Round Unmounted and Square Sizes Optimized for Modern CMOS Sensors...

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$123.00 USD - $360.00 USD

$123.00 USD

Baader Planetarium RGB R-Filter 1.25" – CMOS-optimized

$123.00 USD - $360.00 USD

$123.00 USD

Baader Planetarium RGB R-Filter – CMOS-optimized

Red (R) filter for LRGB astrophotography Available in 1.25" & 2" mounted, round unmounted and square sizes Optimized for modern CMOS sensors H...

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$123.00 USD - $360.00 USD

$123.00 USD

$150.00 USD - $500.00 USD

$150.00 USD

Chroma Blue Filter

Blue broadband filter for LRGB color imaging 3.0 mm thick substrate, parfocal with other Chroma astronomy filters Transmitted wavefront better tha...

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$150.00 USD - $500.00 USD

$150.00 USD

$150.00 USD - $500.00 USD

$150.00 USD

Chroma Green Filter

Captures the green portion of the visible spectrum for LRGB imaging 3.0 mm thick glass substrate ensures parfocal performance with other Chroma fi...

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$150.00 USD - $500.00 USD

$150.00 USD

$775.00 USD - $3,350.00 USD

$775.00 USD

Chroma HaLRGB Filter Set

Complete 5-Filter Set: Luminance, Red, Green, Blue, and H-alpha H-alpha Bandwidth Options: Available in 3nm, 5nm, or 8nm variants Substrate Thickn...

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$775.00 USD - $3,350.00 USD

$775.00 USD

$525.00 USD - $1,925.00 USD

$525.00 USD

Chroma LRGB Filter Set

Complete four-filter Luminance, Red, Green, and Blue set Engineered for systems f/4.0 and slower Parfocal 3.0 mm thick substrates Transmitted wave...

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$525.00 USD - $1,925.00 USD

$525.00 USD

$150.00 USD - $500.00 USD

$150.00 USD

Chroma Luminance Filter

Captures the full visible spectrum for high-resolution LRGB imaging 3.0 mm substrate, parfocal with other Chroma astronomy filters (except LoGlow)...

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$150.00 USD - $500.00 USD

$150.00 USD

$150.00 USD - $500.00 USD

$150.00 USD

Chroma Red Filter

Captures the red portion of the visible spectrum for LRGB color imaging 3.0 mm substrate, parfocal with other Chroma astronomy filters (except LoG...

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$150.00 USD - $500.00 USD

$150.00 USD

$219.00 USD - $219.00 USD

$219.00 USD

$219.00 USD - $219.00 USD

$219.00 USD

iOptron LRGB Imaging Filter Kit - 1.25"

Complete LRGB Filter Set Includes Luminance, Red, Green, and Blue Filters Standard 1.25" Filter Size Enables Full-Color Imaging with Monochrome Ca...

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$219.00 USD - $219.00 USD

$219.00 USD

$219.00 USD - $219.00 USD

$219.00 USD

$369.00 USD - $569.00 USD

$369.00 USD

Optolong LRGB + H-Alpha 7nm Filter Set

Complete 5-Filter LRGB and H-Alpha Set 7nm H-Alpha Filter Centered at 656.3nm Blocks 589nm Sodium Light Pollution Line High Transmission for Natur...

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$369.00 USD - $569.00 USD

$369.00 USD

$249.00 USD - $359.00 USD

$249.00 USD

Optolong LRGB Filter Set

Complete 4-filter LRGB set for monochrome cameras High average transmission of over 90% for maximum signal Blocks sodium light pollution at 589nm ...

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$249.00 USD - $359.00 USD

$249.00 USD

$665.00 USD - $1,009.00 USD

$665.00 USD

Optolong LRGB, Ha, OIII & SII Filter Set

Complete 7-filter set for monochrome astrophotography Includes Luminance, Red, Green, and Blue broadband filters Includes 7nm Hydrogen-alpha, 6.5n...

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$665.00 USD - $1,009.00 USD

$665.00 USD

Pegasus Astro 2 inch mounted photographic filters, LRGB and SHO set

Pegasus Astro 2 inch mounted photographic filter - Blue

$84.00 USD - $84.00 USD

$84.00 USD

$84.00 USD - $84.00 USD

$84.00 USD

Pegasus Astro 2inch mounted photographic filter - Blue

2-inch mounted Blue (B) channel filter for LRGB astrophotography Transmission of >95% from 410nm to 500nm Parfocal design to minimize refocusin...

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$84.00 USD - $84.00 USD

$84.00 USD

$84.00 USD - $84.00 USD

$84.00 USD

Pegasus Astro 2 inch mounted photographic filter - Green

$84.00 USD - $84.00 USD

$84.00 USD

$84.00 USD - $84.00 USD

$84.00 USD

Pegasus Astro 2inch mounted photographic filter - Green

2-inch mounted LRGB Green filter Transmission >95% from 500-550nm Parfocal design requires no refocusing between filters 1/4 wavefront polished...

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$84.00 USD - $84.00 USD

$84.00 USD

$84.00 USD - $84.00 USD

$84.00 USD

Pegasus Astro Indigo Filter Wheel + LRGB 2'' Mounted Filter Set Optolong

$680.00 USD - $680.00 USD

$680.00 USD

$680.00 USD - $680.00 USD

$680.00 USD

Pegasus Astro Indigo Filter Wheel + LRGB 2'' Mounted Filter Set Optolong

7-position capacity for 2-inch mounted filters Includes a complete 2-inch Optolong LRGB filter set Automated filter selection for monochrome imagi...

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$680.00 USD - $680.00 USD

$680.00 USD

$680.00 USD - $680.00 USD

$680.00 USD

$148.00 USD - $299.00 USD

$148.00 USD

Player One LRGB Filter S-series

LRGB filter set for monochrome astrophotography Available in 1.25" and 2" sizes (2" round mounted for larger sensors) Constructed from high-qualit...

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$148.00 USD - $299.00 USD

$148.00 USD

$148.00 USD - $299.00 USD

$148.00 USD

ZWO LRGB Optimized Filters

1.25" and 2" Mounted or 36mm Unmounted Sets Greater than 92% Transmission at Passband Balanced 1:1:1 RGB Exposure Weighting 1/4 Wavefront Polished...

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$148.00 USD - $299.00 USD

$148.00 USD

How an LRGB Set Works Together

The value of a set lies in the relationship between its filters — parfocality, transmission balance and blocking — rather than in each one alone.

Luminance: A broad filter blocking ultraviolet and infrared while passing the full visible range, gathering the most photons and therefore carrying the image's detail.
Red, green and blue: Colour separation with carefully placed cut-on and cut-off points, so channels do not overlap and colours remain distinguishable.
Transmission balance: Sets designed so that near-equal exposure across channels gives neutral star colour, which removes a large amount of processing guesswork.
Parfocality: Matched optical thickness so refocusing between filters is minimal, which matters most at fast focal ratios with narrow critical focus zones.
UV and IR blocking: Essential in refractors, where unblocked infrared reaches a different focus and bloats stars noticeably.
Sizes and mounting: Sized to your sensor diagonal and filter-to-sensor distance, mounted for standard wheels or unmounted to maximize clear aperture.

Why Choose David Astro for LRGB Filters

A mismatched set costs you processing time on every image you ever take with it.

Buy the set, not the pieces: We recommend matched sets because transmission balance and parfocality only exist across a designed group, not across mixed brands.
Size calculated: We work out the filter size from your sensor diagonal and the distance from filter to sensor, so corners are not vignetted.
Spacing accounted for: Filter thickness shifts focus, and we include it in the back-focus calculation supplied with your order.
Authorized dealer: Genuine filters with verified coatings and full manufacturer warranty, in Canadian stock.
Ships from Canada: No duties or brokerage fees for Canadian buyers.

LRGB Filters in Canada — Frequently Asked Questions

How much luminance versus colour should I shoot?: A common starting ratio is roughly half your total time in luminance and the remainder split across red, green and blue. Colour data can be binned or shot in poorer conditions since it carries less detail.
Do I need UV and IR blocking?: In a refractor, yes — a doublet or triplet does not focus infrared with the visible range, and unblocked IR bloats stars. In a reflector it matters less, but a blocking luminance filter is still standard practice.
Can I mix filters from different sets?: You can, but you lose the transmission balance and parfocality that make a designed set convenient. Expect more colour calibration work and per-filter focus offsets.
Is LRGB better than one-shot colour?: It resolves more detail for a given sensor and allows narrowband later, at the cost of roughly three to four times the imaging time per target and a filter wheel in the train.

Moving to monochrome imaging?

Tell us your camera and wheel and we will specify the set and sizes. Ships from Canada, full warranty.

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LRGB Filters

Filters

How an LRGB Set Works Together

Why Choose David Astro for LRGB Filters

LRGB Filters in Canada — Frequently Asked Questions

Moving to monochrome imaging?