ZWO 31mm SHO Narrowband Filters
- Brand: ZWO
- Product Code: ZWO-31-Narrowband
- Availability: Pre-Order (one month)
-
$15,900TWD
| Filter | |
| Filters | Ha: 653-660 nm, SII: 669-676 nm, OIII: 497-504 nm The above are estimations, please see the transmission curve for exact values. |
| Size | 31 mm |
| Thread | none |
| Transmission | 90 % |
| Blocked Transmission | <0.1% transmission of off-band, OD3 |
| FWHM | 7±0.5 nm |
| Infrared Cut-off | 700-1100 nm |
| Optical flatness | 1/4 lambda |
| Glass Thickness | 2 mm |
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