EUR 1.133,00
Filter type: | Narrow band nebula filter |
Filter characteristic: | f/3 ultra high speed, CMOS optimized |
Suitable for: | Fast systems from f/3.4 to f/2.3 |
Passband: | H-alpha (656.3 nm), [O III] (500.7 nm) and [S II] (671.7 nm) |
FWHM (full width at half maximum): | 3.5 nm (H-alpha) / 4 nm (O-III/S-II) |
Coating (anti-reflective coating): | Reflex-Blocker hard-coated, plane-optical polished. |
Filter thickness: | 3 mm |
Size: | 50.4 mm unmounted |
Net weight: | 0.21 g |
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