Baader S-II 2" Narrowband-Filter (6.5nm)

Baader S-II 2" Narrowband-Filter (6.5nm): detailed overview

Baader S-II 2" Narrowband-Filter (6.5nm) is this telescope is designed as a versatile amateur observing instrument. Its optical design, focal length and mechanical equipment determine whether wide fields or higher-detail magnification are the main strength. Key product data include HERSTELLER: Baader Planetarium; ARTIKELNUMMER (#): 2961253; EAN CODE: 4047825047366. The important point is not a single specification on its own, but the way optics, mechanics and intended use work together.

A stable setup matters more than extreme magnification. A properly aligned finder and sensibly spaced eyepieces make locating and observing targets much easier. This makes it easier to choose the product for a real observing or imaging task rather than simply chasing the highest specification.

Who is it for?

• Astronomy beginners and experienced observers
• Moon, planets and selected deep-sky targets
• Observers looking for a complete optical system

Technical features from the product data

• HERSTELLER: Baader Planetarium
• ARTIKELNUMMER (#): 2961253
• EAN CODE: 4047825047366
• NETTOGEWICHT (KG): 0.07
• GEEIGNET FÜR ÖFFNUNGSVERHÄLTNIS: langsamer als f/3.4
• DURCHLASSBEREICH: S-II
• FILTERDICKE (OHNE FASSUNG): 2 mm
• HWB (HALBWERTSBREITE): 6.5 nm
• ZWL (ZENTRALWELLENLÄNGE): 671,7 nm
• VERGÜTUNG (ENTSPIEGELUNG): Reflex-Blocker™ hartvergütet, planoptisch poliert

Practical use, selection and system planning

Realistically useful magnification depends on aperture, optical quality and atmospheric seeing. In practice, a steady image at moderate power usually reveals more detail. When building the complete setup, also consider existing connections, weight, working distances and equipment you already own. A clean mechanical system is easier to use and simpler to expand later.

Our recommendation

Choose accessories and upgrades for the actual application rather than theoretical maximum values. A well-matched system is usually more capable and more pleasant to use than a combination where components only just fit together.

Related products and alternatives

If you would like to compare alternatives or related equipment, these products are worth a look: Baader S-II 1¼" Narrowband-Filter (6.5nm)  ·  Baader S-II 50.4mm Narrowband-Filter (6.5nm)  ·  Baader O-III 2" Narrowband-Filter (6.5nm)