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

Filtre photométrique Chroma I-Bessell - 2" Monté
I-Bessell Chroma photometric filter - 2" Mounted
CHF 699
Filtre Chroma H-alpha 3nm Ultra - 2" Monté
Chroma H-alpha 3nm Ultra filter - 2" Mounted
CHF 1'299
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 Chroma Rouge - 2" Monté
Chroma Red filter - 2" mounted
CHF 499
Filtre Chroma H-beta 3nm Ultra - 2" Monté
Chroma H-beta 3nm Ultra filter - 2" mounted
CHF 1'299
Colour Magic 2" Duo-band C1(Hα+OIII)
Colour Magic 2" Duo-band C1(Hα+OIII)
CHF 109
Le Ciel aux jumelles – Explorer simplement les étoiles et les curiosités du ciel
The sky through binoculars - Simply exploring the stars and the sky's sights
CHF 39
Pegasus SmartEye + votre livre « Le ciel au télescope » offert
Pegasus SmartEye + your free «Telescoping the Sky» book
CHF 1'599
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 OIII Antlia 3nm Pro Highspeed
Antlia 3nm Pro Highspeed OIII filter
Price range: CHF 279 through CHF 529
61EDPHIII
61EDPHIII
Original price was: CHF 599.Current price is: CHF 459.
Filtre H-alpha Antlia 4.5nm Edge
Antlia 4.5nm Edge H-alpha filter
Price range: CHF 199 through CHF 359
Filtre SII Antlia 4.5nm Edge
SII Antlia 4.5nm Edge filter
Price range: CHF 199 through CHF 359
Falcon Rotator V2
Falcon Rotator V2
Original price was: CHF 659.Current price is: CHF 463.
Colour Magic 2" Duo-band C2 (SII+OIII)
Colour Magic 2" Duo-band C2 (SII+OIII)
CHF 109
Filtre OIII 7nm Prime - 36mm (non-monté)
OIII filter 7nm Prime - 36mm (unmounted)
CHF 169

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]