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Filters > Nebulae filters > SII Filters > Baader > Baader Filters Ultra-Narrowband 4.5nm S II CCD-Filter 36mm
Product no.: 62157

Filters Ultra-Narrowband 4.5nm S II CCD-Filter 36mm

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Product description

SII filter: The narrowband S-II 7nm filter passes light at 672nm wavelength with a bandpass of 3nm which is designed for nebula fotography.

It is suitable for most emission nebulae, planetary nebulae and supernova remnants.

f you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next filter to consider adding to your collection after H-a and OIII is the SII (es-two) or sulfur filter. The SII filter, like H-a, is a deep red filter near 672 nm. H-a, OIII and SII filters provide that Hubble look for many emission nebula. Again, tri-color narrowband imaging with these three filters can be done with the moon up, so your equipment is not sitting dormant for several weeks.

Specifications

Capacity


Central wavelength (nm)
673
Half-value width (nm)
4,5
Optical length (mm)
2
Coating of optical system
dielectric
Frame
unmounted
Filter Size (mm)
36

General


Type
Filters
Type of build
line filter

Area of application


Useful for photographs
yes
Planetary nebulae
yes
Baader Filters Ultra-Narrowband 4.5nm S II CCD-Filter 36mm
Baader Filters Ultra-Narrowband 4.5nm S II CCD-Filter 36mm

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