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

Kit SHO 7nm Prime - 36mm (non-monté)
SHO 7nm Prime Kit - 36mm (unmounted)
CHF 439
Filtre Chroma Clair - 2" Monté
Chroma Clair filter - 2" mounted
CHF 369
Filtres photométriques Antlia SLOAN (g'r'i'z') - 4 pièces
Photometric filters Antlia SLOAN (g'r'i'z') - 4 pieces
CHF 1'439
Colour Magic 2" Duo-Narrowband D1 (Hα+OIII)
Colour Magic 2" Duo-Narrowband D1 (Hα+OIII)
CHF 299
Filtre H-alpha 7nm Prime - 36mm (non-monté)
H-alpha filter 7nm Prime - 36mm (unmounted)
CHF 169
Filtre SII 7nm Pegasus - 2" Monté
SII 7nm Pegasus filter - 2" mounted
CHF 209
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 Antlia ALP-T Dualband 5nm SII et H-beta (2")
Antlia ALP-T Dualband 5nm SII and H-beta filter (2")
CHF 359
Filtre Antlia Quad Band Anti Pollution Lumineuse
Antlia Quad Band Anti-Light Pollution Filter
CHF 209
Filtre photométrique Chroma Sloan z' - 2" Monté
Chroma Sloan z' photometric filter - 2" Mounted
CHF 699
Filtre Antlia ALP-T Dualband 3.5nm SII et Hb
Antlia ALP-T Dualband 3.5nm SII and Hb filter
CHF 379
Filtre Chroma OII 8nm - 2" Monté
Chroma OII 8nm filter - 2" mounted
CHF 829
Filtre photométrique Chroma U-Bessell - 2" Monté
U-Bessell Chroma photometric filter - 2" Mounted
CHF 699
Filtre SII Antlia Ultra Narrowband 2.5nm
SII Antlia Ultra Narrowband 2.5nm filter
Price range: CHF 465 through CHF 590
Filtres V Pegasus - 2" Monté
V Pegasus filters - 2" mounted
CHF 79
Filtre L (UV/IR Cut) Pegasus - 2" Monté
Filter L (UV/IR Cut) Pegasus - 2" Mounted
CHF 79

Our new products

Verre Haute résolution pour SFPT 80MT & 100MT
High-resolution glass for SFPT 80MT & 100MT
CHF 349
Verre Haute résolution pour filtre Double Stack 100THa
High-resolution glass for Double Stack 100THa filter
CHF 349
Verre Haute résolution pour double stack LS80
High-resolution glass for LS80 double stack
CHF 349
DSII/LS152T: Double Stack interne pour LS152THa
DSII/LS152T: Internal double stack for LS152THa
CHF 4'529
LS50C: Double stack pour LS50THa
LS50C: Double stack for LS50THa
CHF 1'256
LS40FHa: Double Stack pour LS40THa
LS40FHa: Double Stack for LS40THa
CHF 900
DSII/LS130MT: Double Stack pour LS130MT
DSII/LS130MT: Double Stack for LS130MT
CHF 4'499
DSII/SFPT: Double Stack interne pour LS80MT et LS100MT
DSII/SFPT: Internal double stack for LS80MT and LS100MT
CHF 2'458
LS60FHa: Double Stack pour LS60MT et LS60THaPT
LS60FHa: Double Stack for LS60MT and LS60THaPT
CHF 2'240
LS50FHa : Double Stack pour LS60MT, LS60THa, LS60THaPT
LS50FHa: Double Stack for LS60MT, LS60THa, LS60THaPT
CHF 1'365
[category_menu_mobile]