Baader Filters SII CMOS f/2 Highspeed 2" (70924)
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Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.

Baader Filters SII CMOS f/2 Highspeed 2" (70924)

The narrowband S-II 7nm filter is designed specifically for nebula photography. It allows light transmission at a wavelength of 672nm with a bandpass of 3nm, making it ideal for capturing most emission nebulae, planetary nebulae, and supernova remnants.

308.30 $
Tax included

250.65 $ net price (non-EU countries)

Anatolii Livashevskyi
Product Manager
Українська / Polski
+48721808900
+48721808900
Telegram +48721808900
[email protected]

Description

The narrowband S-II 7nm filter is designed specifically for nebula photography. It allows light transmission at a wavelength of 672nm with a bandpass of 3nm, making it ideal for capturing most emission nebulae, planetary nebulae, and supernova remnants. 

If you want to achieve the iconic appearance of Hubble Space Telescope (HST) images, such as the famous "Pillars of Creation" in the Eagle Nebula (Messier 16), the SII (sulfur) filter is an excellent addition to your collection after H-alpha (H-a) and OIII filters. Like the H-a filter, the SII filter operates in the deep red spectrum near 672nm. The combination of H-a, OIII, and SII filters enables tri-color narrowband imaging that provides the "Hubble look" for many emission nebulae. Additionally, this imaging technique can be performed even when the moon is up, ensuring your equipment remains productive without long periods of inactivity. 

 

Specifications

    Capacity
        Central wavelength (nm): 671.7
        Half-value width (nm): 6.5
    Frame
        Size: 2"
        Mount material: Aluminium
        Coating: Reflex-Blocker™
    Connection to Telescope
        Size: 2"
    Compatibility
        Suitable for f/3.4 - f/1.8 systems
        Filter thickness (mm): 2
    General Information
        Type: Filters
        Build: Line filter
        Series: f/2 Highspeed
    Applications
        Useful for photographs: Yes
        Visually useful: No
        Twin stars: No
        Moon & planets: No
        Nebulae & galaxies: Yes

This SII filter is an essential tool for astrophotographers aiming to capture detailed and vibrant images of emission nebulae and achieve that distinctive "Hubble look."

Data sheet

9R6ED3S9QT

Official permits of the Ministry of Development and Technology

Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.