Christmas is fast approaching! To make sure your gifts arrive on time and shine under the tree on December 24th, place your orders now!


More products from the brand :Antlia

Antlia 4.5nm Edge OIII filter

Price range: CHF 199 through CHF 359

Free delivery
Easy, free returns

Antlia OIII 4.5nm EDGE filter

Explore OIII nebulae with unrivalled contrast thanks to the Antlia OIII 4.5nm EDGE filter. Specially designed for deep-sky astrophotography, it maximizes the useful signal while suppressing unwanted noise.

Why choose the Antlia OIII 4.5nm EDGE filter?

  • High transmission (>85% at 500.7nm) to capture the faintest structures of OIII nebulae.
  • Narrow bandwidth of 4.5nm for exceptional contrast between subject and sky background.
  • OD5 deletion unwanted wavelengths to minimize light interference.
  • Fast compatibility up to f/3 without significant signal loss.
  • Premium manufacturing with one-piece optical substrate, scratch-resistant surface treatment and blackened edges.

Ideal applications

  • Imaging OIII nebulae
  • Observation of planetary nebulae and Wolf-Rayet
  • Capturing supernova remnants
  • Imaging polluted skies or dark sites
  • Extended imaging time even under moonlight

Filter technical specifications

Features Detail
Type OIII 4.5nm EDGE
FWHM (Full Width at Half Maximum) 4.5nm
Center wavelength (CWL) 500.7nm
Maximum transmission >85%
Out-of-band blocking OD5 (0.001%) between 300-1000nm
Filter thickness 2mm ± 0.05mm (50mm: 3mm ± 0.05mm)
Substrate Unglued monoblock optical glass
Surface quality S/D 60/40 (MIL-O-13830 standard)
Transmitted wavefront λ/4 or better
Parallelism <30 arcsec
Warranty 3 years against delamination

Available sizes

  • Mounted: 1.25″, 2″
  • Unmounted: Ø31mm, Ø36mm, Ø50mm

Frame features

  • Ultra-thin cell for reduced vignetting
  • Black anodized finish for durability
  • Weather-resistant laser engraving

Spectral curves

Important notice

Never look directly at the sun with this filter. This would cause serious eye damage.

 

Products in the same category

Set de filtres Antlia ALP-T Dualband 3.5 nm SII&H-beta et 3 nm Ha&OIII (2")
Set of Antlia ALP-T Dualband 3.5 nm SII&H-beta and 3 nm Ha&OIII filters (2")
CHF 729
Filtre OIII Antlia Ultra Narrowband 2.5nm
Antlia Ultra Narrowband 2.5nm OIII filter
Price range: CHF 465 through CHF 590
Set de filtres Antlia ALP-T Dualband SII&H-beta et Ha&OIII (2")
Set of Antlia ALP-T Dualband SII&H-beta and Ha&OIII filters (2")
CHF 699
Filtre OIII 7nm Prime - 36mm (non-monté)
OIII filter 7nm Prime - 36mm (unmounted)
CHF 169
Filtre Chroma OII 8nm - 2" Monté
Chroma OII 8nm filter - 2" mounted
CHF 829
Filtre OIII Antlia 4.5nm Edge
Antlia 4.5nm Edge OIII filter
Price range: CHF 199 through CHF 359
Filtre Chroma Luminance - 2" Monté
Chroma Luminance filter - 2" Mounted
CHF 499
Colour Magic 2" OIII 3nm
Colour Magic 2" OIII 3nm
CHF 399
Filtre H-alpha Antlia 4.5nm Edge
Antlia 4.5nm Edge H-alpha filter
Price range: CHF 199 through CHF 359
Filtre Chroma SII 5nm - 2" Monté
Chroma SII 5nm filter - 2" mounted
CHF 969
Filtre B Pegasus - 2" Monté
Filter B Pegasus - 2" Mounted
CHF 79
Colour Magic 2" Duo-Narrowband D Package(D1+D2)
Colour Magic 2" Duo-Narrowband D Package(D1+D2)
CHF 559
Filtre OIII Antlia 3nm Pro Highspeed
Antlia 3nm Pro Highspeed OIII filter
Price range: CHF 279 through CHF 529
Filtre photométrique Chroma V-Bessell - 2" Monté
Chroma V-Bessell photometric filter - 2" Mounted
CHF 699
Filtre Antlia LRGB-V Pro
Antlia LRGB-V Pro filter
Price range: CHF 299 through CHF 769
Filtre Antlia Quad Band Anti Pollution Lumineuse
Antlia Quad Band Anti-Light Pollution Filter
CHF 209

Our new products

Case n°8 du calendrier de l'Avent 2025 - Pack wanderer astro !
Case n°8 du calendrier de l'Avent 2025 - Pack wanderer astro !
Original price was: CHF 1'149.Current price is: CHF 1'049.
Case n°7 du calendrier de l'Avent 2025 - Rabais sur la nouvelle HOPE D60
Case n°7 du calendrier de l'Avent 2025 - Rabais sur la nouvelle HOPE D60
Original price was: CHF 729.Current price is: CHF 679.
Case n°6 du calendrier de l'Avent 2025 - Vespera X
Case n°6 du calendrier de l'Avent 2025 - Vespera X
Original price was: CHF 1'910.Current price is: CHF 1'739.
Case n°5 du calendrier de l'Avent 2025
Box n°5 of the 2025 Advent calendar
Original price was: CHF 139.Current price is: CHF 69.
Jupe de protection pour dobson 10" et 12" Explore Scientific
Protective skirt for dobson 10" and 12" Explore Scientific
CHF 99
ToupTek GPCMOS02000KMA - IMX290 Mono
ToupTek GPCMOS02000KMA - IMX290 Mono
Original price was: CHF 139.Current price is: CHF 69.
Case n°4 du calendrier de l'Avent 2025 - Une monture !
Case n°4 of the 2025 Advent calendar - A frame!
Original price was: CHF 2'228.Current price is: CHF 1'818.
Calendrier Astronomique 2026 par notre super Arnaud !
2026 Astronomical Calendar by our super Arnaud!
Price range: CHF 50 through CHF 130
Troisième case du calendrier de l'Avent 2025 - Rotateur V2 Pegasus !
Third square in the 2025 Advent calendar - Rotator V2 Pegasus!
Original price was: CHF 659.Current price is: CHF 559.
Bague SCT-2" Celestron
SCT-2" Celestron ring
Original price was: CHF 40.Current price is: CHF 30.
[category_menu_mobile]