TeleVue Nebustar UHC 1.25" – UHC Filter

 219,00

Nebustar UHC-filter van 1,25 inch als allround contrastfilter voor emissienevels.

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TeleVue Filters UHC Nebustar 1.25" Black 1.25 inch UHC Nebustar filter with light green glass and TeleVue Bandmate Type 2 imprint on a white background
TeleVue Nebustar UHC 1.25" – UHC Filter
 219,00

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TeleVue Nebustar UHC 1,25" : UHC-Filter: UHC-nevelfilter in 1,25 inch

De Nebustar UHC in 1,25 inch is het allround nevelfilter van het TeleVue-programma: smal genoeg om de hemelachtergrond hard te dempen, breed genoeg om alle heldere emissielijnen door te laten.

Voor wie een enkel filter zoekt dat op zo veel mogelijk nevels werkt, is dit de keuze.

TeleVue Nebustar UHC 1.25"

How a line filter gains contrast

Emission nebulae emit their light in a handful of narrow spectral lines. Light pollution and the natural airglow do not; they spread out over the entire spectrum. A line filter lets only the nebula lines through and blocks the rest.

The result is not a brighter image, but a darker background from which the nebula emerges. With a Dutch or Belgian sky, that difference is significant.

TeleVue Nebustar UHC 1.25"

Type 2: Built by Astronomik to TeleVue specifications

For the Bandmate Type 2 line, TeleVue is collaborating with filter specialist Astronomik. The transmission bands lie exactly on the emission lines, with transmission in the passband exceeding ninety percent and a sharp cutoff outside of it.

The coating is polished and parfocal with TeleVue eyepieces, so focusing is hardly necessary after screwing it on. The filter housing has standard threads, making it compatible with any eyepiece with filter threads of the corresponding size.

TeleVue Nebustar UHC 1.25"

Het eerste nevelfilter dat je koopt

De Nebustar laat een venster door dat de H-beta-lijn en beide zuurstoflijnen omvat. Daarmee werkt hij op vrijwel elke emissienevel: van de Orionnevel en de Lagunenevel tot de planetaire nevels waar ook het OIII-filter op mikt.

Die breedte maakt de UHC het logische eerste nevelfilter. Een OIII wint daarna op de specifieke zuurstofdoelen nog een extra stap contrast, een H-beta ontsluit tot slot de handvol specialistendoelen.

Featured accessories

The filter screws into the filter thread of each eyepiece in the corresponding size, and therefore also into the TeleVue eyepieces from our range. For use with a 2-inch diagonal mirror, a 2-inch filter can be inserted directly into the mirror nose.

For whom yes and for whom no

  • ✓ Het eerste nevelfilter in elke verzameling
  • ✓ Emissienevels van Orion tot de Lagune
  • ✓ Observing under a light-polluted sky
  • ✗ Sterrenstelsels en sterrenhopen, die dempt elk nevelfilter
  • ✗ Wie alleen planetaire nevels kijkt, daar wint de OIII

Specifications

TypeUHC-nevelfilter
PassageVenster rond H-beta en de OIII-lijnen
Size1.25-inch filter thread
ManufacturingAstronomik to Tele Vue specification
UseVisual

More filters can be found on the Telescope filters page. The complete lineup of this merk is available on the TeleVue merk Page.

Additional information

Filter application

(Astro)photography, Deep-sky, Light pollution

Filter type

UHC

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