More products from the brand :Antlia

Antlia 4.5nm Edge OIII filter

Price range: CHF 199 through CHF 359

Free delivery against signature
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

Vespera II — X Edition
Vespera II - X Edition
Original price was: CHF 1'909.Current price is: CHF 1'809.
Colour Magic 2" Duo-Narrowband D2 (SII+OIII)
Colour Magic 2" Duo-Narrowband D2 (SII+OIII)
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 OIII Antlia 4.5nm Edge
Antlia 4.5nm Edge OIII filter
Price range: CHF 199 through CHF 359
Filtre planétaire IR Pass 685nm
IR Pass 685nm planetary filter
CHF 59
Filtre Chroma CH4 (Méthane) Jovien - 2" Monté
Chroma CH4 (Methane) Jovien filter - 2" mounted
CHF 829
Filtre Antlia ALP-T Dualband 3nm Ha et OIII
Antlia ALP-T Dualband 3nm Ha and OIII filter
CHF 349
Colour Magic 2" SII 3nm
Colour Magic 2" SII 3nm
CHF 399
Filtre SII Antlia Ultra Narrowband 2.5nm
SII Antlia Ultra Narrowband 2.5nm filter
Price range: CHF 465 through CHF 590
Roue à filtre L ToupTek 7x2"
ToupTek 7x2" L filter wheel
CHF 219
Filtre planétaire Antlia U-Venus
Antlia U-Venus planetary filter
CHF 179
Colour Magic 2" Duo-Narrowband D Package(D1+D2)
Colour Magic 2" Duo-Narrowband D Package(D1+D2)
CHF 559
Filtres V Pegasus - 2" Monté
V Pegasus filters - 2" mounted
CHF 79
Filtre Chroma H-beta 5nm - 2" Monté
Chroma H-beta 5nm filter - 2" mounted
CHF 989
Le Ciel au télescope – 110 observations essentielles à faire avec votre instrument
Le Ciel au télescope - 110 observations essentielles à faire avec votre instrument
CHF 39
Kit SHO Antlia 3nm Pro 2" – Filtres H-alpha, OIII et SII
Kit SHO Antlia 3nm Pro 2" - H-alpha, OIII and SII filters
Original price was: CHF 1'200.Current price is: CHF 949.

Our new products

Askar 60F 0.75× Reducer
Askar 60F 0.75× Reducer
CHF 139
Askar 91F 0.75× Reducer
Askar 91F 0.75× Reducer
CHF 139
Askar 111F 0.74× Reducer
Askar 111F 0.74× Reducer
CHF 229
Askar 131F 0.74× Réducteur Correcteur
Askar 131F 0.74× Reducer Corrector
CHF 229
Askar 131F Flat-Field
Askar 131F Flat-Field
CHF 1'619
Askar 60F Flat-Field
Askar 60F Flat-Field
CHF 429
Kit Go-To SynScan™ Sky-Watcher pour Monture EQ3-2
Go-To SynScan™ Sky-Watcher kit for EQ3-2 mount
CHF 449
Réducteur / Correcteur 0.77x pour Esprit-150ED
0.77x Reducer / Corrector for Esprit-150ED
CHF 419
[category_menu_mobile]