Antlia Filtro 4.5nm H-Alpha Edge 50.8mm

Filtro Antlia H-alpha a banda strettissima  4.5nm! Ideale per registrare le deboli strutture di nebulose ad emissione anche sotto cieli inquinati.

Utilizzabile su sensori CCD e CMOS in bianco e nero

Spectral curve

Product parameters:

Basic Substrate: Optical, Single / Non-glued substrate

Filter Thickness: 2mm+/-0.05mm for 2”

FWHM (Full width at half maximum): 4.5nm

CWL (Central Wavelength): 656.3nm

Peak Transmission:＞90% Blocking: > 5 OD (out of band blocking) @ 300-1000nm

Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)

Transmitted Wavefront: Lambda/4 or better. Parallelism: less than 30 arcsec