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Baader Filters SII CMOS Narrowband 50x50mm
Baader Filters SII CMOS Narrowband 50x50mm - Image 2
Baader Filters SII CMOS Narrowband 50x50mm - Image 3

Baader Filters SII CMOS Narrowband 50x50mm

$192.08 Original price was: $192.08.$99.99Current price is: $99.99.

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SKU: YXN0C 70870 Category: Filters
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Product description

More about the series Narrowband…

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.

Central wavelength(nm)

671,7

Half-value width(nm)

6,5

Frame

Frames

Mount material

Aluminium

Coating of optical system

Reflex-Blocker™

Appropriate for...

f/10 – f/3.5

filter thickness(mm)

2

Filter Size(mm)

50 x 50

Type

Filters Filters No matter whether they are for observing or for astrophotography, filters are very important accessories.Click to read more…

Type of build

line filter Line filter Filters that allow only light in a specific spectral line to pass through.Click to read more…

Series

Narrowband Narrowband Line filter with 6.5 nanometre full width at half maximumClick to read more…

Useful for photographs

yes

Visually useful

no

Twin stars

no

Moon & Planets

no

Nebulae & galaxies

yes

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