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

Filtre Chroma LowGlow anti pollution lumineuse - 2" Monté
Chroma LowGlow light pollution filter - 2" mounted
CHF 499
Filtre H-Beta Antlia 3nm Pro - 2"
H-Beta Antlia 3nm Pro - 2" filter
Filtre Chroma Rouge - 2" Monté
Chroma Red filter - 2" mounted
CHF 499
Filtre photométrique Chroma Sloan g' - 2" Monté
Chroma Sloan g' photometric filter - 2" Mounted
CHF 699
Filtre Chroma H-beta 3nm Ultra - 2" Monté
Chroma H-beta 3nm Ultra filter - 2" mounted
CHF 1'299
Filtre Antlia LRGB Dark Series
Antlia LRGB Dark Series filter
Price range: CHF 459 through CHF 769
Filtre SII 7nm Pegasus - 2" Monté
SII 7nm Pegasus filter - 2" mounted
CHF 209
Filtre photométrique Chroma I-Bessell - 2" Monté
I-Bessell Chroma photometric filter - 2" Mounted
CHF 699
Pack de filtres LRVB Pegasus - 2" Monté
Pegasus LRVB filter pack - 2" mounted
CHF 299
Filtre Antlia ALP-T Dualband 5nm SII et H-beta (2")
Antlia ALP-T Dualband 5nm SII and H-beta filter (2")
CHF 359
Filtre SII Antlia 3nm Pro
Antlia 3nm Pro SII filter
Price range: CHF 289 through CHF 759
Filtre H-alpha 7nm Prime - 36mm (non-monté)
H-alpha filter 7nm Prime - 36mm (unmounted)
CHF 169
Filtre photométrique Chroma Sloan r' - 2" Monté
Photometric filter Chroma Sloan r' - 2" Mounted
CHF 699
Filtre SII Antlia 4.5nm Edge
SII Antlia 4.5nm Edge filter
Price range: CHF 199 through CHF 359
Filtre OIII 7nm Pegasus - 2" Monté
OIII 7nm Pegasus filter - 2" Mounted
CHF 209
Filtre OIII Antlia Ultra Narrowband 2.5nm
Antlia Ultra Narrowband 2.5nm OIII filter
Price range: CHF 465 through CHF 590

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]