Vespera Dual Band Filter
The Vespera Dual Band Filter is a dual narrowband interference filter that will significantly improve your photo quality whether you are viewing from an urban or natural environment.
By selecting very precisely the wavelengths of Hydrogen Alpha (H-alpha) and Oxygen III (O-III), found mainly in nebulae, the filter will increase the contrast between the Stellar object and the sky background. Thus, its use makes it possible to obtain a higher-quality image, with sharper stars and finer details.
Keep only the essential
The Dual Band filter has been designed to allow only two particular wavelengths to pass through to the Vespera sensor:
- O-III
- H-alpha
Due to the filtered wavelengths, it is particularly effective for photographing nebulae in emission (e.g.: Orion nebula M42, Heart nebula IC 1805 …), dark nebulae endowed with hydrogen (e.g.: Horsehead or Elephant's Trunk nebula...), planetary nebulae (e.g.: Owl nebula M97, Dumbbell nebula M27...), supernova remnants (e.g.: Veil nebula, Crab Nebula M1...).
For globular clusters (e.g.: Hercules cluster M13, cluster M92...), the selectivity of the Dual Band filter will help you to obtain sharper stars.
A filter specifically studied for Vespera
The optical quality of the Dual Band filter has been specifically studied by our engineers to offer use at full aperture, without any impact on the optical diameter of the instrument. The lens ring is equipped with an electronic micro-card that allows Vespera to detect the Dual Band filter and adapt its observation and image processing parameters.
Transmission curve
The filter features 12nm of bandwidth in each wavelength (O-III = 500.7nm, H-alpha = 656.3nm).
The Vaonis store is…
30-day free trial
2-year warranty
Express worldwide shipping
Interest-free installment payments
Customer Reviews
Well-finished filter that does its job perfectly
Very easy to install, Vaonis vespera pro 2 recognise it straight away! Solar filter means I could use my telescope day time…dual band lens makes my astrophotography images of deep sky objects more detailed, CLS filter helps in city
Finally got some clear nights to test the equipment. It perform perfectly as expected. I wish that the apt would download in my windows laptop and could not find any reference.
Reviews in Other Languages
J ai eu l occasion de tester le filtre Dual Ban dqns la soirée du 14 octobre la seule avec un ciel parfait tres pur
J ai choisi comme cible la nebuleuse Pacman..filtre tres facile a insfaller .
L initialisation se passe toujours tres bien
Le resultat apres 2 heures de pose
Le resultat n est pas mal du tout pour moi
Je joins deux photos .1 la photo brute et2 apres une petite utilsation de sky color
L echelle de pollution lumineuse ici est de 6
Il faut que je me cache un peu de certains lampadaires qui sont tres genants
Je vai tester aussi quand le ciel le permettra le filtre cls que j ai egalement reçu
Ici l eclairage public ne s etaint qu a 1h du matin jusqu a 6h
Malgré cette pollution lumineuse mais en navigant entre les maisons et quelques arbres je pense que je vais arriver quand meme a de bon resultats avec ce vespera 3 et ses filres.qui sont vraiment xuper.tout est OK
Es una maravilla, sobre todo, para los que no somos expertos en astrofografía.
Cada noche deseo tener cielos despejados para poder seguir aprendiendo con el Telescopio Vaonis Vespera Pro 2 y los filtros.
Ce filtre est incontournable pour libérer le potentiel de votre smart télescope.
Le gain en détails est saisissant. Installé en un instant, ce filtre fait des merveilles sur les nébuleuses par émission et en milieu urbain : le fond du ciel devient bien sombre et les extensions gazeuses ressortent magnifiquement.
Si vous hésitiez en raison du tarif, allez-y les yeux fermés, le résultat est au rendez-vous.
In a nutshell
- Ideal for nebula photography
- Increases the contrast between the sky background and the stellar object
- Refines stars and details
Technical specifications
399 €