FWHM 3nm Ha OIII SII Filter
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FWHM 3nm Ha OIII SII vignetting filter for deep sky nebula photography
Technical parameters with Ultra Narrowband Filter
| Central wavelength | 500.7nm, 656.3nm, 671.6nm |
|---|---|
| FWHM | 3nm |
| Peak transmittance | ＞95% |
| Cutoff range | 300-1000nm |
| Average cutoff depth | ＞OD4 |
| Angle of incidence | 0° |
| Surface quality | 60/40 |
spectral curve with H-a 3nm/SII 3nm/OIII 3nm Vignetting filter
Inventory Parameters with FWHM 3nm Deep Sky Nebula Photography Filter
In stock: D48*2mm, D50.8mm, customizable
If you need custom Optical Filters or bulk orders, please contact our sales team:
info@borisuns.com
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