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RRP: £134.00 £109.90
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SKU: OPT-SII-CCD-6.5NM-1.25
OPTOLONG
Optolong SII-CCD 6.5nm Extra Narrow Band Deep Sky Imaging Filter 1.25" for CCD Astro Photography
Added: 06/01/2019
 
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This premium Optolong Narrowband SII filter (Sulphur II for CCD) is designed for CCD imaging of deep sky objects and nebulosity allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, which corresponds to...

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RRP: £134.00 £109.90
in In stock (2)
SKU: OPT-OIII-CCD-6.5NM-1.25
OPTOLONG
Optolong OIII-CCD 6.5nm Extra Narrow Band Deep Sky Imaging Filter 1.25" for CCD Astro Photography
Added: 04/01/2019
 
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This premium Optolong Extra Narrowband OIII-CCD filter is designed for CCD imaging of deep sky objects and nebulosity allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII...

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RRP: £169.00 £149.00
in In stock (2)
SKU: OPT-SII-CCD-6.5NM-36MM
OPTOLONG
Optolong SII-CCD 6.5nm Extra Narrow Band Deep Sky Imaging Filter 36mm Unmounted
Added: 02/01/2019
 
(0 reviews)  
This premium Optolong Narrowband SII filter (Sulphur II for CCD) is designed for CCD imaging of deep sky objects and nebulosity allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, which corresponds to...

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Save 12%
RRP: £169.00 £149.00
in In stock (2)
SKU: OPT-OIII-CCD-6.5NM-36MM
OPTOLONG
Optolong OIII-CCD 6.5nm Extra Narrow Band Deep Sky Imaging Filter 36mm Unmounted
Added: 02/01/2019
 
(0 reviews)  
This premium Optolong Extra Narrowband OIII-CCD filter is designed for CCD imaging of deep sky objects and nebulosity allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII...

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RRP: £169.00 £149.00
in In stock (2)
SKU: OPT-H-ALPHA-7NM-36MM
OPTOLONG
Optolong H-Alpha 7nm Narrowband Deepsky Filter 36mm Unmounted
Added: 02/01/2019
 
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This premium Optolong Narrowband H-Alpha filter is designed for nebula observation or CCD/dSLR imaging at 7nm bandwidth of light centered on a wavelength of 656nm, which corresponds to H-alpha emission lines. This filter...

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RRP: £228.00 £209.00
in In stock (3)
SKU: OPT-L-PRO-SONY-FF
OPTOLONG
Optolong L-PRO Maximum Luminosity Filter - SONY FULL FRAME Clip Filter
Added: 01/01/2019
 
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The Optolong L-Pro (L-Professional) filter is designed to provide maximum luminosity of the spectrum other than those areas caused by light pollution. Compatible with FULL FRAME SONY cameras.

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£775.00
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SKU: CHROMA_Ha3_2INCH
Chroma
Chroma Narrowband Filter - H-alpha 3nm - 2" Filter
Added: 01/01/2019
 
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H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-Alpha from the SII doublet (671.6nm and 673.1nm)....

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£750.00
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SKU: CHROMA_Ha3_50ROUND
Chroma
Chroma Narrowband Filter - H-alpha 3nm - 50mm Round Unmounted
Added: 01/01/2019
 
(0 reviews)  
H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-Alpha from the SII doublet (671.6nm and 673.1nm)....

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£760.00
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SKU: CHROMA_Ha3_50SQUARE
Chroma
Chroma Narrowband Filter - H-alpha 3nm - 50mm Square Unmounted
Added: 01/01/2019
 
(0 reviews)  
H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-Alpha from the SII doublet (671.6nm and 673.1nm)....

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£760.00
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SKU: CHROMA_OIII3_50SQUARE
Chroma
Chroma Narrowband Filter - OIII 3nm - 50mm Square Unmounted
Added: 01/01/2019
 
(0 reviews)  
OIII 3nm Narrow Band filters isolate the doublet emission of doubly ionized Oxygen. After ionized hydrogen, this is the next most common emission when imaging nebulae. Doublet emission occurs at 495.9 and 500.7 nm.

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£750.00
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SKU: CHROMA_OIII3_50ROUND
Chroma
Chroma Narrowband Filter - OIII 3nm - 50mm Round Unmounted
Added: 01/01/2019
 
(0 reviews)  
OIII 3nm Narrow Band filters isolate the doublet emission of doubly ionized Oxygen. After ionized hydrogen, this is the next most common emission when imaging nebulae. Doublet emission occurs at 495.9 and 500.7 nm.

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£775.00
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SKU: CHROMA_OIII3_2INCH
Chroma
Chroma Narrowband Filter - OIII 3nm - 2"
Added: 01/01/2019
 
(0 reviews)  
OIII 3nm Narrow Band filters isolate the doublet emission of doubly ionized Oxygen. After ionized hydrogen, this is the next most common emission when imaging nebulae. Doublet emission occurs at 495.9 and 500.7 nm.

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£775.00
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SKU: CHROMA_SII3_2INCH
Chroma
Chroma Narrowband Filter - SII 3nm - 2"
Added: 01/01/2019
 
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SII filters isolate the emission from ionized Sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm.

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£750.00
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SKU: CHROMA_SII3_50ROUND
Chroma
Chroma Narrowband Filter - SII 3nm - 50mm Round Unmounted
Added: 01/01/2019
 
(0 reviews)  
SII filters isolate the emission from ionized Sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm.

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£760.00
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SKU: CHROMA_SII3_50SQUARE
Chroma
Chroma Narrowband Filter - SII 3nm - 50mm Square Unmounted
Added: 01/01/2019
 
(0 reviews)  
SII filters isolate the emission from ionized Sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm.

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Save 9%
RRP: £98.00 £89.00
in In stock (3)
SKU: OPT-UHC-NIKON-FF-MkII
OPTOLONG
Optolong UHC Ultra High Contrast Filter - Nikon FULL FRAME Clip Filter - Mark II
Added: 27/12/2018
 
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 Premium Quality Optolong UHC Ultra High Contrast Filter for heavily light polluted skies. Compatible with FULL FRAME Nikon cameras.

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Save 19%
RRP: £228.00 £185.00
in In stock (3)
SKU: OPT-L-PRO-NIKON-FF-mkII
OPTOLONG
Optolong L-PRO Maximum Luminosity Filter - Nikon FULL FRAME Clip Filter - MkII
Added: 24/12/2018
 
(0 reviews)  
Mark II version - no change to the quality of the filter, but the housing has been updated and thus the compatibility list has been altered. The Optolong L-Pro (L-Professional) filter is designed to provide maximum...

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£466.00
in In stock (2)
SKU: Z256-NB7nmD36MkII
ZWOptical
ZWO 36mm H-alpha SII OIII 7nm Narrowband Filter Set - UNMOUNTED - Mark II
Added: 24/11/2018
 
(0 reviews)  
Narrowband filter sets are used to create high contrast deep sky images of certain objects, mainly emission and diffuse nebulae (i.e. Veil Nebula, M42 Orion Nebula, North America Nebula, Horsehead Nebula) or planetary nebulae...

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