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

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
Filtre H-alpha 7nm Prime - 36mm (non-monté)
H-alpha filter 7nm Prime - 36mm (unmounted)
CHF 169
DWARF 3 - Smart télescope ultra polyvalent
DWARF 3 - Ultra-versatile smart telescope
Price range: CHF 469 through CHF 529
Filtre Chroma Bleu - 2" Monté
Chroma Blue filter - 2" mounted
CHF 499
Filtres Player One S-Series SHO 7 nm
Player One S-Series SHO 7 nm filters
CHF 489
Filtre SII Antlia 4.5nm Edge
SII Antlia 4.5nm Edge filter
Price range: CHF 199 through CHF 359
Filtres photométriques Antlia SLOAN (g'r'i'z') - 4 pièces
Photometric filters Antlia SLOAN (g'r'i'z') - 4 pieces
CHF 1'439
Filtre Baader ND 2" OD 0.9 T=12.5%
Baader ND filter 2" OD 0.9 T=12.5%
CHF 79
Filtre Antlia LRGB-V Pro Series Set
Antlia LRGB-V Pro Series Set filter
Price range: CHF 299 through CHF 769
Filtre H-alpha Antlia 3nm Pro
Antlia 3nm Pro H-alpha filter
Price range: CHF 289 through CHF 759
Filtre photométrique Chroma I-Bessell - 2" Monté
I-Bessell Chroma photometric filter - 2" Mounted
CHF 699
Colour Magic 2" H-alpha 3nm
Colour Magic 2" H-alpha 3nm
CHF 399
Colour Magic 2" OIII 3nm
Colour Magic 2" OIII 3nm
CHF 399
Filtre L (UV/IR Cut) Pegasus - 2" Monté
Filter L (UV/IR Cut) Pegasus - 2" Mounted
CHF 79
Vespera II — X Edition
Vespera II - X Edition
Original price was: CHF 1'909.Current price is: CHF 1'809.
Bande chauffante pour objectif / anti-buée pour astrophotographie (avec contrôleur)
Lens heater / anti-fog strip for astrophotography (with controller)
CHF 29

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]