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

Colour Magic 2" Duo-Narrowband D Package(D1+D2)
Colour Magic 2" Duo-Narrowband D Package(D1+D2)
CHF 559
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 H-alpha Antlia 4.5nm Edge
Antlia 4.5nm Edge H-alpha filter
Price range: CHF 199 through CHF 359
Filtre H-alpha Antlia 3nm Pro
Antlia 3nm Pro H-alpha filter
Price range: CHF 289 through CHF 759
Filtre Chroma SII 5nm - 2" Monté
Chroma SII 5nm filter - 2" mounted
CHF 969
Filtres LRGB Player One S-Series
LRGB Player One S-Series filters
CHF 199
Filtre Chroma OIII 3nm ( 2.8 < f/d < 3.6) - 2" Monté
Chroma OIII filter 3nm ( 2.8 < f/d < 3.6) - 2" Mounted
CHF 1'299
Filtre Chroma CH4 (Méthane) Jovien - 2" Monté
Chroma CH4 (Methane) Jovien filter - 2" mounted
CHF 829
Filtre OIII 7nm Prime - 36mm (non-monté)
OIII filter 7nm Prime - 36mm (unmounted)
CHF 169
Filtre Chroma H-alpha 5nm - 2" Monté
Chroma H-alpha filter 5nm - 2" Mounted
CHF 989
Filtre Antlia Triband RGB Ultra II
Antlia Triband RGB Ultra II filter
CHF 199
Filtre Chroma H-alpha 3nm ( 2.8 < f/d < 3.6) - 2" Monté
Chroma H-alpha filter 3nm ( 2.8 < f/d < 3.6) - 2" Mounted
CHF 1'299
Filtre Chroma SII 3nm Ultra - 2" Monté
Chroma SII 3nm Ultra filter - 2" mounted
CHF 1'299
Filtre H-alpha Antlia 3nm Pro Highspeed
Antlia 3nm Pro Highspeed H-alpha filter
Price range: CHF 279 through CHF 529
Colour Magic 2" Duo-Narrowband D2 (SII+OIII)
Colour Magic 2" Duo-Narrowband D2 (SII+OIII)
CHF 299
Filtre CLS pour Vespera
CLS filter for Vespera
CHF 219

Our new products

Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Original price was: CHF 289.Current price is: CHF 249.
Trépied en carbone iOptron charge lourde 40mm Ver.A
Trépied en carbone iOptron charge lourde 40mm Ver.A
CHF 299
iOptron SkyGuider Pro
iOptron SkyGuider Pro
CHF 299
Askar SQA130
Askar SQA130
CHF 3'889
Universal Filter Wheel Adapter for Wanderer ETA
Universal Filter Wheel Adapter for Wanderer ETA
CHF 59
Case n°9 du calendrier de l'Avent 2025 - Filtres SHO Antlia 3nm PRO 2"
Case n°9 du calendrier de l'Avent 2025 - Filtres SHO Antlia 3nm PRO 2"
Original price was: CHF 1'197.Current price is: CHF 999.
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.
[category_menu_mobile]