ToupTek Astro LRGB Filter Set

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

LRGB filtros astronómicos imagem do produto

ToupTek Astro LRGB filter sets provide L, R, G, and B channel filters for monochrome deep-sky imaging workflows.

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

ToupTek Astro LRGB filters use quartz glass and optical coatings to define the L, R, G, and B transmission ranges while reducing common out-of-band light sources.

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

Technical Parameters

Size Especificações 36mm (unmounted) / 1.25" (31.77mm) / 2"

Glass Thickness 2mm

Transmission >95%

Glass Material Quartz Glass

Frame Material Aluminum Alloy Metal

OD Value ≥5.0

Transmission Ranges

L 420–690nm

R 595–695nm

G 495–580nm

B 400–510nm

Surface Treatment: Dual-side high-precision optical polishing

Coating Technology: IAD (Ion Assisted Deposition) coating technology

Coating System Design: AR anti-reflection coating + quartz glass + precision cut-off coating layer

Spectral Response Curves

Spectral Chart Reading Guide

Horizontal axis represents wavelength (unit: nm), vertical axis represents transmission (unit: %)
Gray line: L channel Red: R channel Green: G channel Blue: B channel
Emission nebula signal bands are primarily concentrated at 656nm (Hα), 500.7nm (OIII), and similar wavelengths
Light pollution peaks typically occur near 540nm and 590nm (sodium/mercury lamp bands)
filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

Funcionalidades principais

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

L L Filter (420–690nm): UV/IR cut-off, enhances contrast and sharpness

R R Filter (595–695nm): Emphasizes Hα and SII bands

G G Filter (495–580nm): Suppresses mercury/sodium pollution while transmitting OIII

B B Filter (400–510nm): Captures Hβ and OIII radiation

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

The coating stack combines single-side cut-off coating, front-surface AR coating, and edge blackening to reduce internal reflection and stray light.

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

36mm filters: Feature recessed black ring facing telescope for instant orientation identification
1.25" and 2" filters: Equipped with threaded aluminum frames for direct screw-in installation

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

36mm: Suitable for APS-C and smaller sensor formats

1.25": Suitable for 1-inch and smaller sensor formats

2": Suitable for full-frame and smaller sensor formats

Compatible with industry-standard filter wheels:
36mm: 7-position / 1.25": 8-position / 2": 5-position

ToupTek Astro LRGB Filter Imaging Results

NGC1999

Photographer: voice

Camera: ToupTek ATR2600M

Guide Camera: GPM462M

Telescope: Sky-Watcher F3.4

Mount: UMI

Filters: ToupTek Astro 36mm LRGB&SHO

Exposure: RGB 12×600s each, L 600s×36, Hα 600s×48

Total exposure time: 20 hours

LBN777

Photographer: voice & LiiiiiCo

Camera: ToupTek ATR2600M

Guide Camera: GPM462M

Telescope: Sky-Watcher F3.4

Filters: ToupTek Astro 36mm LRGB&Hα

Mount: UMI

Exposure: RGB 20×600s each, L 600s×60, Hα 1200s×40

Total exposure time: 32 hours

LDN 1532 & IC 2087

Photographer: voice

Camera: ToupTek ATR2600M

Guide Camera: GPM462M

Telescope: Askar FRA400

Mount: UMI

Filters: ToupTek Astro 36mm LRGB&SHO

Exposure: RGB 15×600s each, L 600s×45, Hα 600s×66

Total exposure time: 26 hours

M81 & M82

Photographer: yahushua

Telescope: Askar 130HNT28-AL

Camera: ToupTek Astro ATR585M

Mount: iOptron CEM26

Guide Camera: G3M2210M

Filters: ToupTek Astro 1.25" LRGB & H-alpha

Total exposure time: 14 hours

M81 Individual Channel Single Exposure Examples (300 seconds)

L Channel

R Channel

G Channel

B Channel

Instalação Guide

36mm Filters

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

1.25" and 2" Filters

Screw directly into the filter wheel.

Garantia e serviço

Quality Assurance Testing

Every filter undergoes spectral testing before shipment to verify optical performance consistency.

Warranty Policy

filtros LRGB da ToupTek Astro permite trocas precisas de filtros, imagem LRGB ou de banda estreita e resultados consistentes de céu profundo.

Suporte técnico

For assistance, please contact customer service or technical support through our support page:
ToupTek Astro Technical Support

Notas importantes

Color Variations: Filter coating colors may appear different under various lighting conditions and viewing angles—this is a normal optical phenomenon.

Produto Improvements: Specifications and appearance may be updated as part of product refinement. Refer to actual delivered goods.

ToupTek Astro LRGB Filter Set