Product description
OIII Filter: The narrowband O-III 3nm filter is designed for nebula observation allowing 3nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light.
$176.00 Original price was: $176.00.$97.99Current price is: $97.99.

OIII Filter: The narrowband O-III 3nm filter is designed for nebula observation allowing 3nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light.
| Central wavelength(nm) | 500,7 |
|---|---|
| Half-value width(nm) | 6,5 |
| Frame | ring |
| Mount material | Aluminium |
| Coating of optical system | Reflex-Blocker™ |
| Appropriate for... | f/10 – f/3.5 |
| filter thickness(mm) | 2 |
| Filter Size(mm) | 36 |
| 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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