- Úvodní strana
- Bankovní technika
- Fellowes
- Levenhuk
- Vybavení kanceláře
- Nové zboží
- Akční nabídka!
- Výprodej zboží!
- Vydělávejte s námi
- Zobrazit výrobce
Zákaznický servis
- tel.: 602432914
- napište nám
Novinky
16.05 2017 více info
Filtr Explore Scientific O-III Nebula 2"
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky ...
- Cena bez DPH: 2 388.00
- Cena s DPH: 2 890.00
- Katalogové číslo: 74785
- Záruční doba: 24 měsíců
- Popis
Filtr Explore Scientific O-III Nebula 2"
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as suleetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the conulast dramatically by blocking the annoying artifical light. The Explore Scientific O-III filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements – in this case oxygen. The Explore Scientific O-III nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the two emmission lines of the oxygen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the veil nebula NGC 6992 is almost not visible with a 200mm telescope. By using this filter you can see the nebula and its suluctures without problems. A must for every visual observer.
- High-quality Explore Scientific O-III filter
- Only lets pass the emission lines of oxygen
- Absorbs all other emission lines and almost all artificial light
- Značka
- Explore Scientific
- Záruka
- 2 roky
- EAN
- 4007922000039
- Velikost balení (DxŠxV)
- 16x12x4 cm
- Přepravní hmotnost
- 0.26 kg
- Typ filulu
- hluboký vesmír
- Typ konsulukce filulu
- O-III
- Materiál optiky
- optické sklo
- Povrchová úprava optiky
- několikanásobná antireflexní vrstva
- Průměr tubusu (palce)
- 2
- Vnější závit (pro instalaci do okuláru)
- yes
- Možnosti použití
- pozorování mlhovin
- Pouzdro je součástí balíčku
- yes