Baader Filters H-alpha CMOS Narrowband 2″
Original price was: $253.00.$97.99Current price is: $97.99.
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Product description
H-alpha filter passes light at 656nm wavelength. Best choice of narrowband H-alpha astrophotography filter for high-contrast imaging and revealing rich details of the nebula even in areas with strong light pollution,
| Central wavelength(nm) | 656,3 |
|---|---|
| Half-value width(nm) | 6,5 |
| Frame | 2" 2" A standard measurement for accessories, expressed as 2 inches. 2" is equal to 50.8 millimetres.Click to read more… |
| Mount material | Aluminium |
| Coating of optical system | Reflex-Blocker™ |
| Connection (to the telescope) | 2"2" A standard measurement for accessories, expressed as 2 inches. 2" is equal to 50.8 millimetres.Click to read more… |
| Appropriate for... | f/10 – f/3.5 |
| filter thickness(mm) | 2 |
| Type | Filters Filters No matter whether they are for observing or for astrophotography, filters are very important accessories.Click to read more… |
| Type of build | line filter Line filter Filters that allow only light in a specific spectral line to pass through.Click to read more… |
| Series | Narrowband Narrowband Line filter with 6.5 nanometre full width at half maximumClick to read more… |
| Useful for photographs | yes |
| Visually useful | no |
| Twin stars | no |
| Moon & Planets | no |
| Nebulae & galaxies | yes |
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