Filtre Hα 7nm Pegasus – 2″ Monté

CHF 209

Référence FILTER-0015

Free delivery for products over CHF 30
Easy, free returns

Filtre Pegasus Astro H-alpha (Hα)

The filter Pegasus Astro H-alpha (Hα) is a high-quality narrow-band filter designed for astrophotography. Here are its detailed features:

Technical specifications

  • Diameter : 50.8 mm (2 inches)
  • Thread : M48 x 0.75 mm
  • Total thickness : 7.5 mm (5 mm filter body + 2.5 mm thread)
  • Bandwidth : 7 nm
  • Central wavelength : 656 nm
  • Transmission : Tave > 80% à 656 nm
  • Polishing : 1/4 wavelength
  • Coating : Anti-reflective multilayer
  • Type : Narrow-band interference filter

Features and benefits

  • Optimum transmission : Le filtre offre une transmission supérieure à 80% à la longueur d’onde centrale de 656 nm, correspondant à la raie d’émission de l’hydrogène alpha.
  • Narrow bandwidth : Avec une bande passante de seulement 7 nm, ce filtre isole efficacement la raie d’émission Hα, permettant une excellente séparation des détails spectraux.
  • Parafocality: Comme tous les filtres Pegasus Astro, le filtre Hα est parafocal avec les autres filtres de la série, simplifiant le processus d’acquisition d’images.
  • Superior optical quality : The 1/4-wavelength polish guarantees excellent image quality and optimum sharpness.
  • Anti-reflective coating : Multi-layer anti-reflective coating eliminates halos, ghosting and unwanted reflections.
  • Durability: The filter is designed to withstand scratches and temperature changes.
  • UV and IR blocking : The filter effectively blocks UV and IR wavelengths, improving image sharpness and reducing halos.

Astrophotography applications

  • Imagerie des nébuleuses d’émission : Idéal pour capturer les détails des nébuleuses riches en hydrogène ionisé.
  • Reducing light pollution : La bande passante étroite permet d’imager efficacement même dans des zones à forte pollution lumineuse.
  • False color imaging : Used in the Hubble palette technique (SHO) to create spectacular false-color images.
  • High-resolution imaging : The narrow bandwidth enables high-contrast images to be obtained, revealing fine details in nebular structures.

Conclusion

In conclusion, the filter Hα Pegasus Astro est un outil de haute qualité pour l’astrophotographie spécialisée, offrant une excellente transmission dans une bande étroite centrée sur la raie d’émission de l’hydrogène alpha.

Filter typeSHO (narrow bands)
Bandwidth7 nm
ParafocusingYes
Wavelength656nm
WeightN/A
In the boxFilter only
Special featuresNarrow-band filter, high transmittance >80%

Why choose Deep Space Astronomy?

Because astronomy is our passion! Our team of experts is here to guide you in your choice of equipment, from beginner telescopes to the most sophisticated astrophotography equipment.

  • Personalized advice: Take advantage of our expertise to choose the ideal instrument for your needs and budget.
  • A wide choice of products: We offer a rigorous selection of quality equipment from the leading brands on the market.
  • Customized training: Expand your knowledge of astronomy with our online and face-to-face training courses.
  • Responsive after-sales service: We're here to help you make the most of your experience.

Products in the same category

Filtre SII Antlia 4.5nm Edge
SII Antlia 4.5nm Edge filter
CHF 199CHF 359
Filtre Chroma OII 8nm - 2" Monté
Chroma OII 8nm filter - 2" mounted
CHF 829
Pack de filtres LRVB Pegasus - 2" Monté
Pegasus LRVB filter pack - 2" mounted
CHF 299
Filtre Antlia ALP-T Dualband 5nm Ha et OIII
Antlia ALP-T Dualband 5nm Ha and OIII filter
CHF 319CHF 399
Filtres photométriques Antlia SLOAN (g'r'i'z') - 4 pièces
Photometric filters Antlia SLOAN (g'r'i'z') - 4 pieces
CHF 1'439
Filtre Chroma LowGlow anti pollution lumineuse - 2" Monté
Chroma LowGlow light pollution filter - 2" mounted
CHF 499
Filtre photométrique Chroma B-Bessell - 2" Monté
Chroma B-Bessell photometric filter - 2" Mounted
CHF 699
Filtre OIII Antlia 4.5nm Edge
Antlia 4.5nm Edge OIII filter
CHF 199CHF 359
Filtre H-Beta Antlia 3nm Pro - 2"
H-Beta Antlia 3nm Pro - 2" filter
Set de filtres Antlia ALP-T Dualband SII&H-beta et Ha&OIII (2")
Set of Antlia ALP-T Dualband SII&H-beta and Ha&OIII filters (2")
CHF 699
Filtre NII Antlia 3nm Pro - 2"
NII Antlia 3nm Pro - 2" filter
CHF 399
Filtre Chroma H-beta 5nm - 2" Monté
Chroma H-beta 5nm filter - 2" mounted
CHF 989
Colour Magic 2" Duo-band C1(Hα+OIII)
Colour Magic 2" Duo-band C1(Hα+OIII)
CHF 109
Filtre OIII 7nm Pegasus - 2" Monté
OIII 7nm Pegasus filter - 2" Mounted
CHF 209
Filtre H-alpha Antlia 4.5nm Edge
Antlia 4.5nm Edge H-alpha filter
CHF 199CHF 359
Filtre Chroma Bleu - 2" Monté
Chroma Blue filter - 2" mounted
CHF 499

Our new products

Pegasus SmartEye - Oculaire numérique d'intensification lumineuse
Pegasus SmartEye - Oculaire numérique d'intensification lumineuse
CHF 1'599
Dobson Bresser Messier 12" (305mm)
Dobson Bresser Messier 12" (305mm)
CHF 1'049
Dobson Bresser Messier 10" (254mm)
Dobson Bresser Messier 10" (254mm)
CHF 709
Dobson Bresser Messier 8" (200mm)
Dobson Bresser Messier 8" (200mm)
CHF 499
Dobson Bresser Messier 6" (152mm) - Version planétaire
Dobson Bresser Messier 6" (152mm) - Planetary version
CHF 359
Dobson Bresser Messier 6" (152mm)
Dobson Bresser Messier 6" (152mm)
CHF 319
Dobson Bresser Messier 5" (127mm)
Dobson Bresser Messier 5" (127mm)
CHF 219
GM 3000: Câble de connexion la monture et le boîtier de commande
GM 3000: Connection cable between mount and control box
CHF 135
GM 4000: Kit d’expédition obligatoire pour GM 4000
GM 4000: Mandatory shipping kit for GM 4000
CHF 509
GM 4000: Plaque de base Baader 400 mm pour bras latéraux (Sidewings)
GM 4000: Baader base plate 400 mm for Sidewings
CHF 337
[category_menu_mobile]