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Filtre > Filtre pentru nebuloase > Filtre UHC > OPT > Triad Ultra > OPT Filtre Triad Ultra Quad-Band Narrowband Filter 2"
Nr. articol: 61632

Filtre Triad Ultra Quad-Band Narrowband Filter 2"

$ 2.280,00 incl. TVA, plus costuri de livrare
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OPT Radian Triad Ultra Quad-Band Narroband Filter

The Triad filter has now been improved upon! With the Triad Ultra, you now have narrower band-passes, more light pollution reduction, higher contrast, better separation between H-beta and OIII channels, and sensitivity in the Sulfur II emission lines. Like the original Triad filter, the Triad Ultra is designed to work with color cameras but also as a narrow-band-luminance filter for monochrome cameras.

The Triad Ultra is 100% American made and uses advanced multi-coatings and extreme tolerance glass, to ensure it is always consistent and accurate. Filter thickness is 3mm.

Since the filter has extremely narrow band passes, telescopes with focal ratios faster than f/4 will move transmission off band. Telescopes with focal ratios between f/2.9 and f/3.9 are compatible with Triad Ultra, with lower transmissions. Telescopes with focal ratios faster than f/2.8 are incompatible with the Triad Ultra filter.

Transmission lines:

H-Beta: 79% Peak Transmission, 5nm FWHM

O-III: 97% Peak Transmission, 4nm FWHM

H-Alpha: 87% Peak Transmission, 4nm FWHM

S-II: 90% Peak Transmission, 4nm FWHM

Date tehnice

Capacitate


Conexiune (spre telescop)
2"
Cadru
2"

General


Serii
Triad Ultra
Tip
Filtre
Tip constructiv
Filtre UHC

Aplicaţii


Anti poluare luminoasa
da
Nebuloase din hidrogen
da
Nebuloasa planetara
da
Ramasite de supernova
da
Util pentru fotografiere
da
Util vizual
nu
OPT Filtre Triad Ultra Quad-Band Narrowband Filter 2"
OPT Filtre Triad Ultra Quad-Band Narrowband Filter 2"
OPT Filtre Triad Ultra Quad-Band Narrowband Filter 2"
OPT Filtre Triad Ultra Quad-Band Narrowband Filter 2"

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