Astrodon Filters High Performance H-Alpha 50mm 3nm Narrowband Filter, Unmounted
Original price was: $368.00.$98.99Current price is: $98.99.
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Product description
In the case that this article currently is not available from the warehouse, please note the following: we order from this supplier in regular intervals. Please place your order now, so that we may take into account your order and deliver the article to you by the above-mentioned date.
Enhance your deep sky viewing with the latest in multi-layer coating technology. These filters transmit desired wavelengths in a very steep slope vs. gentle transition slopes in competitive brands. This means better contrast and overall performance.
| Connection (to the telescope) | – |
|---|---|
| Venus | – |
| Twin stars | – |
| Central stars | – |
| Comets | – |
| Supernova remains | – |
| Planetary nebulae | – |
| Hydrogen nebulae | yes |
| Uranus | – |
| Saturn | – |
| Jupiter | – |
| Mars | – |
| Mercury | – |
| Coating of optical system | multiple |
| Moon | – |
| Daylight and twilight observation | – |
| Anti light-pollution | yes |
| Useful for photographs | yes |
| Visually useful | – |
| Type of build | line filter Line filter Filters that allow only light in a specific spectral line to pass through.Click to read more… |
| Type | Filters Filters No matter whether they are for observing or for astrophotography, filters are very important accessories.Click to read more… |
| Filter Size(mm) | 50 |
| Frame | unmounted |
| Mount material | unmounted |
| Galaxies and star clusters | – |
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