Affordable Wholesale Sharpstar Askar Color Magic 3nm 2inch deep-sky narrowband filter set filter for astrophotography Deep space photography filter

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Affordable Wholesale Sharpstar Askar Color Magic 3nm 2inch deep-sky narrowband filter set filter for astrophotography Deep space photography filter

SKU: 1005004675978896

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Parameter details

3nm H-alpha 2 inch

FWHM (full width at half maximum): 3nm

CWL (center wavelength): 656.3nm

Peak transmittance: 90%

Barrier property: ≥ OD5@200-1100nm

Thickness: 1.85 ± 0.05mm

Surface finish: 60 / 40

Parallelism: 30“

3nm SII 2 inch

FWHM (full width at half maximum): 3nm

CWL (center wavelength): 672nm

Peak transmittance: 90%

Barrier property: ≥ OD5@200-1100nm

Thickness: 1.85 ± 0.05mm

Surface finish: 60 / 40

Parallelism: 30“

3nm OIII 2 inch

FWHM (full width at half maximum): 3nm

CWL (center wavelength): 500.7nm

Peak transmittance: 90%

Barrier property: ≥ OD5@200-1100nm

Thickness: 1.85 ± 0.05mm

Surface finish: 60 / 40

Parallelism: 30“

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