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Neutral, Polar, Contrast Filters

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GBP12.80
in In stock (8)
SKU: 365902
365Astronomy
365Astronomy 2" to 1.25" Filter Adapter
 
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The 365Astronomy 2" to 1.25" Filter Adapter lets you use 1.25" filter with 2" accessories. We could also call it M48 to M28.5 adapter due to the real thread sizes.

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GBP4.32
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SKU: Castell-FIPAg
Castell
White Transparent Plastic Filter Case
 
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Filter CaseIt's a more or less transparent, white plastic case for one 2" filter or four 1.25" filters. Recommended for Castell Deep Sky OIII and UHC filters as those don't come in filter case....

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GBP9.00
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SKU: #1034-Konus
Konus
Konus Moon Filter
 
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This is an excellent and very affordable Moon filter from Konus. (This is just an unusual montage made by one of our colleagues. An image of the Moon is reflected from a monitor screen into the back of the filter...

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GBP13.90
in In stock (10)
SKU: 365MOON1.25
365Astronomy
365Astronomy Premium Moon Filter - 1.25 inch
 
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Unlike other cheaper Moon filters, this premium quality moon filter comes in a metal cell with standard male/female threads on the top and bottom sides and thus it can be combined with other filters as necessary (i.e. a...

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RRP: GBP12.00 GBP10.40
in In stock (8)
SKU: 94119-A
Celestron
Celestron Moon Filter - 1.25 in
 
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Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the...

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GBP16.00
in In stock (3)
SKU: 365531
365Astronomy
Crystalview 1.25-Inch Moon and Contrast Filter
 
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Crystalview 1.25" Moon and SkyGlow Filter. During daytime observations this filter removes the violet glow at the edges of observed objects and also increases the contrast of refractors.When used for astronomical...

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GBP28.00
in In stock (3)
SKU: 365532-Lac-Moon2
365Astronomy
Crystalview 2-Inch Moon and Contrast Filter
 
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Crystalview 2" Moon and SkyGlow FilterDuring daytime observations this filter removes the violet glow at the edges of observed objects and also increases the contrast of refractors.When used for astronomical observations,...

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GBP12.00
in In stock (5)
SKU: Lac-Moon
Lacerta
Lacerta Moon Filter - 1.25 inch
 
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1.25" Moon FilterThis high quality moon filter is very similar to the Celestron Moon Filter and it has a similar dark green colour.The clear aperture is nearly 22mm.Highly recommended for fast telescopes with f/6 and...

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GBP32.40
in In stock (3)
SKU: Astronomik1.25ProP742IR-10225125
Astronomik
Astronomik ProPlanet 742 IR Pass Photo Filter 1.25-Inch
 
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Astronomik 1.25-Inch ProPlanet 742 IR-Pass Filter for AstroPhotographyMounted filter in 1.25" cell ( M28.5mm x 0.5mm ) Ideal filters for the reception of the moon and planets, notably Mars, with telescopes from 6"...

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GBP84.77
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SKU: Astronomik-ProPlanet-742-IR-2
Astronomik
Astronomik ProPlanet 742 IR Pass Photo Filter 2-Inch
 
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Astronomik 2-Inch ProPlanet 742 IR-Pass Filter for AstroPhotographyMounted filter in 2" cell ( M48.5mm x 0.75mm ) Ideal filters for the reception of the moon and planets, notably Mars, with telescopes from 6" (150mm) apertur...

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GBP9.00
in In stock (4)
SKU: 365521-ND96-03
365Astronomy
365Astronomy ND03 Neutral Density Filter with 50% Transmission, 1.25", M28, ND96-0.3
 
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ND0.3 1.25-inch Neutral Density Filter with 50% Transmission Level M28.5x0.6 thread, ND96-0.3This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the...

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GBP9.00
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SKU: 365523-ND96-06
365Astronomy
365Astronomy ND06 Neutral Density Filter with 25% Transmission, 1.25", M28, ND96-0.6
 
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ND0.6 1.25-inch Neutral Density Filter with 25% Transmission Level M28.5x0.6 thread, ND96-0.6This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. Widely used as a Moon filter....

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GBP9.00
in In stock (2)
SKU: 365523-ND96-09
365Astronomy
365Astronomy ND09 Neutral Density Filter with 13% Transmission, 1.25", M28, ND96-0.9
 
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ND0.9 1.25-inch Neutral Density Filter with 13% Transmission Level M28.5x0.6 thread, ND96-0.9This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. Widely used as a Moon filter....

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GBP18.00
in In stock (4)
SKU: 2in-365522-ND96-03
365Astronomy
365Astronomy ND03 Neutral Density Filter with 50% Transmission, 2", ND96-0.3
 
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ND0.3   2-inch Neutral Density Filter with 50% Transmission Level M48 filter thread, ND96-0.3This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also...

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GBP18.00
in In stock (4)
SKU: 2in-365524-ND96-06
365Astronomy
365Astronomy ND06 Neutral Density Filter with 25% Transmission, 2", ND96-0.6
 
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ND0.6   2-inch Neutral Density Filter with 25% Transmission Level M48 filter thread, ND96-0.6This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for...

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GBP18.00
in In stock (4)
SKU: 2in-365526-ND96-09
365Astronomy
365Astronomy ND09 Neutral Density Filter with 13% Transmission, 2", ND96-0.9
 
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ND0.9   2-inch Neutral Density Filter with 13% Transmission Level M48 filter thread, ND96-0.9This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for...

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GBP15.60
in In stock (2)
SKU: GSO-ND96-03-ND03-M28
GSO
ND03 Neutral Filter with 50% Transmission Level M28, ND96-0.3
 
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ND0.3 1.25-inch Neutral Density Filter with 50% Transmission Level M28.5x0.6 thread, ND96-0.3This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the ...

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GBP15.60
in In stock (3)
SKU: GSO-ND96-06-ND06-M28
GSO
ND06 Neutral Filter with 25% Transmission Level M28, ND96-0.6
 
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ND0.6 1.25-inch Neutral Density Filter with 25% Transmission Level M28.5x0.6 thread, ND96-0.6This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the ...

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GBP15.60
in In stock (2)
SKU: GSO-ND96-09-ND09-M28
GSO
ND09 Neutral Filter with 13% Transmission Level M28, ND96-0.9
 
(0 reviews)  
ND0.9 1.25-inch Neutral Density Filter with 13% Transmission Level M28.5x0.6 thread, ND96-0.9This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the ...

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GBP17.97
in In stock (2)
SKU: GSO-ND96-13-ND13-M28
GSO
ND1.3 Neutral Filter with 5% Transmission Level M28, ND96-1.3
 
(0 reviews)  
ND1.3 1.25-inch Neutral Density Filter with 5% Transmission Level M28.5x0.6 thread, ND96-1.3This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the...

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GBP24.60
in In stock (2)
SKU: GSO-ND96-18-ND18-M28
GSO
ND1.8 Neutral Filter with 1% Transmission Level M28, ND96-1.8
 
(0 reviews)  
ND1.8 1.25-inch Neutral Density Filter with 1% Transmission Level M28.5x0.6 thread, ND96-1.8This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for the...

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GBP24.60
in In stock (3)
SKU: GSO-ND96-30-ND30-M28
GSO
ND3.0 Neutral Filter with 0.1% Transmission Level M28, ND96-3.0
 
(0 reviews)  
ND3.0 1.25-inch Neutral Density Filter with 0.1% Transmission Level M28.5x0.6 thread, ND96-3.0This is a neutral density (grey) filter that reduces the amount of light and increases the contrast. It is also recommended for...

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GBP16.00
in In stock (2)
SKU: Lac-polar-GSO-polar
GSO
Polarisation filter with 30% transmission level 1.25" (M28, 5X0.6)
 
(0 reviews)  
During daytime a polarising filter will increase cotrast and reduce atmospheric haze and reflected sunlight. Can also be effectively used for taking photos through windows or through water surface. At nighttime it brings...

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RRP: GBP73.00 GBP63.40
low Low stock (1)
SKU: 2408340
Baader Planetarium
1.25" double polarizing filter w/ rotating filter cell
 
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1 1/4" double polarizing filter with rotating filter cell)     Never use any eyepiece filter for solar observation without objective front filter!...

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RRP: GBP41.00 GBP36.00
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SKU: 2408343
Baader Planetarium
Baader 1.25" single polarizing filter
 
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1 1/4" single polarizing filter   Never use any eyepiece filter for solar observation without objective front filter!...

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RRP: GBP62.00 GBP54.00
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SKU: 2408342
Baader Planetarium
Baader 2" single polarizing filter
 
(0 reviews)  
2" single polarizing filterNever use any eyepiece filter for solar observation without objective front filter!...

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RRP: GBP34.00 GBP29.60
in In stock (2)
SKU: 2458344
Baader Planetarium
Baader ND Filter 1.25" multicoated OD 0.9 T=12.5% optically polished
 
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ND Filter 1.25", multicoated / OD 0.9 T=12.5% (optically polished) Never use any eyepiece filter for solar observation without objective front filter! ...

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RRP: GBP34.00 GBP29.60
low Low stock (1)
SKU: 2458345
Baader Planetarium
Baader ND Filter 1.25" multicoated OD 1.8 T=1.0% optically polished
 
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ND Filter 1 1/4", multicoated / OD 1,8 T=1,0% (optically polished) Never use any eyepiece filter for solar observation without objective front filter!...

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Save 13%
RRP: GBP34.00 GBP29.60
in In stock (2)
SKU: 2458346
Baader Planetarium
Baader ND Filter 1.25" multicoated OD 3.0 T=0.016% optically polished
 
(0 reviews)  
ND Filter 1.25", multicoated / OD 3,0 T=0,016% (optically polished) Please CONTACT US for availability information!   Never use any eyepiece filter for solar observation without objective front filter!...

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Save 12%
RRP: GBP56.00 GBP49.00
low Low stock (1)
SKU: 2458321
Baader Planetarium
Baader ND Filter 2" multicoated OD 0.6 T=25% optically polished
 
(0 reviews)  
ND Filter 2", multicoated / OD 0.6 T=25% (optically polished)Please CONTACT US for availability information!  Never use any eyepiece filter for solar observation without objective front filter!...

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Save 13%
RRP: GBP34.00 GBP29.60
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SKU: 2458343
Baader Planetarium
ND Filter 1.25", multicoated OD 0.6 T=25% optically polished
 
(0 reviews)  
ND Filter 1 1/4", multicoated / OD 0,6 T=25% (optically polished) Please CONTACT US for availability information!   Never use any eyepiece filter for solar observation without objective front filter!...

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Save 12%
RRP: GBP56.00 GBP49.00
in In stock (2)
SKU: 2458322
Baader Planetarium
ND Filter 2" multicoated OD 0.9 T=12,5% opt polished
 
(0 reviews)  
ND Filter 2", multicoated / OD 0,9 T=12,5% (optically polished)    Never use any eyepiece filter for solar observation without objective front filter!...

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Save 12%
RRP: GBP56.00 GBP49.00
low Low stock (1)
SKU: 2458331
Baader Planetarium
ND Filter 2" multicoated OD 1,8 T=1,0% opt polished
 
(0 reviews)  
ND Filter 2", multicoated / OD 1,8 T=1,0% (optically polished)    Never use any eyepiece filter for solar observation without objective front filter!...

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Qty
Save 12%
RRP: GBP56.00 GBP49.00
low Low stock (1)
SKU: 2458332
Baader Planetarium
ND Filter 2" multicoated OD 3,0 T=0,016% opt polished
 
(0 reviews)  
ND Filter 2", multicoated / OD 3,0 T=0,016% (optically polished)    Never use any eyepiece filter for solar observation without objective front filter!...

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GBP8.16
in In stock (3)
SKU: 20405
SkyWatcher
SkyWatcher Moon Filter (for 1.25"eyepieces)
 
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SkyWatcher Moon Filter (for 1.25"eyepieces) Moon filters control the light transmission to your eye from the bright lunar surface providing a comfortable view with increased contrast. This 1.25" filter from SkyW...

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GBP27.00
in In stock (5)
SKU: BSTVP125-Variable-Polarizer-125
365Astronomy
BST Variable Polarising Filter 1.25-inch with Eyepiece Holder
 
(0 reviews)  
1.25" Variable Polarizing Filter Set with Eyepiece Holder and Two Polarizing FiltersThis set of two 1.25" polarizer filters reduces reflected polarized light in the Earth's atmosphere.Also helpful for splitting binary stars b...

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GBP27.00
in In stock (5)
SKU: 20200
SkyWatcher
SkyWatcher Variable Polarising Filter (1.25")
 
(0 reviews)  
SkyWatcher Variable Polarising Filter (1.25") Good quality filter for lunar and planetary observing These high quality anodized aluminium, optical glass variable polarising filters reduce the amount of lig...

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GBP35.00
in In stock (2)
SKU: 20201
SkyWatcher
SkyWatcher Variable Polarising Filter (2")
 
(0 reviews)  
SkyWatcher Variable Polarising Filter (2") These high quality anodized aluminium, optical glass variable polarising filters reduce the amount of light entering your eyepiece. You can progres...

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