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Alstar 1.25" Narrowband NBPF Hydrogen-a 12nm Filter - Enhances The Contrast Between Object and Sky - Allows You to Take Images Even Under Urban Skies
4.0 (21 items)
Limited Time SaleUntil the end
17
07
21
$46.79 cheaper than the new price!!
Free shipping for purchases over $99 ( Details )
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Free cash-on-delivery fees for purchases over $99
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New $77.99
Product details
| Management number | 208573434 | Release Date | 2026/03/22 | List Price | $31.20 | Model Number | 208573434 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- Metal filter cell threads directly into the 1.25 inch barrel of your telescope eyepiece; Mounted in a nicely anodized housing
- The Alstar H aplha cut off filter enhances the contrast between object and sky; allowing you to take good quality images even under urban skies
- Young stars embedded in the bright red of a nebula: an H alpha filter is the expert if you want to capture hydrogen nebulae in all their glory
- With a bandpass of 12 nm; only light above 660 nm is allowed into your camera; whether under dark skies or under the sky glow of a city; That means the filter also blocks the infamous stray light and light from mercury and sodium vapour lamps
- Astrophotography under a light polluted night sky can be difficult; The solution is an H alpha filter; The Alstar H alpha cut off filter works to filter out a large part of this light pollution
| Item Weight | 0.32 ounces |
|---|---|
| Manufacturer | A ALSTAR |
| Item model number | SKU_AM_HF112A |
| Product Dimensions | 2.1 x 1.7 x 0.7 inches |
| Is Discontinued By Manufacturer | No |
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