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Sky-Watcher is a World-Class telescope brand offering an incredible range of high quality astronomical telescopes and accessories, catering for users of all age groups and abilities, from the novice right up to the serious advanced astronomer.
Eyepieces, Diagonals and Filters

'SP - Series' Super-Plossl Eyepieces

'SP - Series' Super-Plossl Eyepieces
Multi-Coated 52º Field

Standard 1.25"/31.7mm eyepieces set high performance standards for modern telescope oculars. The proven 4-element Plossl designs display edge-to-edge pinpoint imaging across their panoramic 52° fields. Utilisation of top quality optical glass, superior multilayer coatings and edge-blackened elements deliver superb high contrast images. 'SP-Series' eyepieces minimise spherical aberration, distortion, astigmatism and off-axis colour, whilst their oversized optical elements afford the observer luxurious eye relief. Stray light is eliminated by the fold back rubber eyecups, standard with every 'SP-Series' eyepiece, and all but the lightest three models feature the security of rubber grips. Whether observing fine planetary detail or deep space wonder, whether your telescope is a Newtonian, Refractor or Catadioptric, let the high performance imaging of 'SP-Series' eyepieces unlock its potential!!

Stock Code
Price
 
SP 40mm
£30.00
SP 32mm
£30.00
SP 26mm
£20.00
SP 20mm
£20.00
SP 17mm
£20.00
SP 12.5mm
£20.00
SP 10mm

£20.00

SP 7.5mm
£20.00
SP 6.3mm
£20.00

Ultrawide Eyepiecs

Ultrawide Eyepiecs
Multi-Coated, 66° Apparent Field, Eye Relief 20mm (18mm Eye Relief),15mm (13mm Eye Relief), 9mm (15mm Eye Relief), 6mm (14.8mm Eye Relief)

Sky-Watcher Ultra-Wide Angle, Multi-Coated, Long Eye Relief eyepieces offer a generous 66º apparent field of view, allowing more sky objects to be viewed at one time. They provide sharp images right across the field. Rubber eyepieces are included for viewing comfort and to exclude extraneous light.

Stock Code
Price
 
UWA 6mm
£33.00
UWA 9mm
£33.00
UWA 15mm
£33.00
UWA 20mm
£33.00

Sky-Watcher Planetary 58° UWA 1.25

Sky-Watcher Planetary 58° UWA 1.25" Eyepieces
Multi-Coated, 58 ° Apparent Field

Based on a modified Plossl design, these fully multi-coated eyepieces are constructed with five lens elements, and are characterised by their wide 58 degree field of view, low distortion, high contrast performance and comfortable operation.

Each model features fold down/screw-off rubber eyecups and a generous 16mm eye relief, making them suitable for spectacle wearers.

Each model features the security of rubber grips and the eyepiece barrels are threaded for standard 1.25” filters.

Stock Code
Price
 
Planetary UWA 2.5mm
£39.00
Planetary UWA 4mm
£39.00
Planetary UWA 5mm
£39.00
Planetary UWA 6mm
£39.00
Planetary UWA 7mm
£39.00
Planetary UWA 9mm
£39.00

Sky-Watcher Planetary 58° UWA 1.25

Ostara SWA 1.25" Eyepieces
Multi-Coated, 70 ° Apparent Field

Super-Wide Angle, Multi-Coated eyepieces offer a generous 70 º apparent field of view, allowing more sky objects to be viewed at one time. They provide sharp images right across the field. Rubber eyepieces are included for viewing comfort and to exclude extraneous light.

Stock Code
Price
 
Ostara SWA  10mm
£50.00
Ostara SWA  20mm
£50.00

ExtraFlatTM 1.25" Eyepieces
 

The exotic 1.25” ExtraFlat™ 5 or 6-element eyepiece design packs premium features and high-end performance into a surprisingly affordable package. The optical designer has succeeded to remove peripheral field curvature so now you can enjoy flat, virtually distortion-free images from the centre-to-edge of the field. Optical performance is impressive, with excellent sharpness, contrast and colour rendition. All models feature oversized eye-lens elements, wide fields of view, long eye-relief for spectacle wearers, and soft twist-up rubber eyecups for comfortable viewing. All models are fully broadband multi-coated, feature blackened lens edges and are parfocal.  Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25” filters. Available in focal lengths of 16mm, 19mm & 27mm, with apparent fields of view of 60°, 65° & 53° and eye relief of 17mm, 19mm & 23mm respectively.  
Stock Code
Price
 
ExtraFlat 27mm
£62.00
ExtraFlat 19mm
£62.00
ExtraFlat 16 mm
£62.00
Ostara ExtraFlat 12 mm
£55.00
Ostara ExtraFlat 8 mm
£55.00

Sky-Watcher SWA-70 (1.25

Sky-Watcher SWA-70 (1.25"/2" Dual Fit)
70 Degree Super Wide Angle 1.25”/2” Eyepieces

These stylish new soft rubber-clad, 70° super wide angle eyepieces are each constructed from 8 lens elements and are fully multi-coated throughout. A cleverly designed dual-fit barrel enables them to be used in both 1.25” and 2” focusers. Eye relief is a generous 20.6mm. They feature oversized eye lens elements and soft twist-up rubber eyecups for comfortable viewing. Available in 3.5mm, 5mm 8mm 13mm & 17mm focal lengths. Threaded for 1.25” filters.

Stock Code
Price
 
SWA-70 (DUAL-FIT) 3.5mm Eyepiece
£90.00
SWA-70 (DUAL-FIT) 5mm Eyepiece
£90.00
SWA-70 (DUAL-FIT) 8mm Eyepiece
£90.00
SWA-70 (DUAL-FIT) 13mm Eyepiece
£90.00
SWA-70 (DUAL-FIT) 17mm Eyepiece
£90.00
SWA-70 (2") 22mm Eyepiece
£90.00
SWA-70 (2") 32mm Eyepiece
£90.00

ExtraFlatTM 1.25

PanaViewTM 2" Eyepieces
 

The 2” PanaView™ 5-element eyepieces, with their impressive high-contrast, panoramic views, are sure to be extremely popular for enthusiasts of low power, deep-sky observing.  These exotic eyepiece models feature giant, oversized eye-lens elements, wide 70° fields of view, long eye-relief for spectacle wearers, and soft twist-up rubber eyecups for comfortable viewing. All models are fully broadband multi-coated, feature blackened lens edges and are parfocal.  Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 2” filters. Available in focal lengths of 26mm, 32mm & 38mm, with apparent fields of view of 70° and eye relief of 20mm, 24mm & 28mm respectively.  
Stock Code
Price
 
PanaView 38mm
£85.00
PanaView 32mm
£75.00
PanaView 26mm
£75.00

HyperFlexT 7.5mm-22.5mm High-Performance Zoom Eyepiece

HyperFlex™
The Flexibility of a Set of Quality Eyepieces, All-In-One!!

A high-performance zoom eyepiece of top quality construction, providing a flat field of view and crisp, clear distortion-free images. Features a continuous focal length of 7.2mm to 21.5mm and a corresponding apparent field of view of 60°-40°. For convenience, focal length positions of 7.2, 10, 13.5 & 21.5mm are engraved on the eyepiece barrel. The zoom is super-smooth to operate and a pleasure to use. Eye relief 15mm.

Constructed with 7 lens elements in 4 separate groups. This exotic eyepiece model features a generous sized eye-lens element and soft twist-up rubber eyecup for comfortable viewing. Fully broadband multi-coated, features blackened lens edges, internal baffling and is parfocal. Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25” filters. Weight approx 190g.


A high-performance zoom eyepiece of top quality construction, providing a flat field of view and crisp, clear distortion-free images. Features a continuous focal length of 9mm to 27mm and a corresponding apparent field of view of 60°-40°. For convenience, reference focal length positions are engraved on the eyepiece barrel. The zoom is super-smooth to operate and a pleasure to use. Eye relief 18mm.

Constructed with 7 lens elements in 4 separate groups. This exotic eyepiece model features a generous sized eye-lens element and soft twist-up rubber eyecup for comfortable viewing. Fully broadband multi-coated, features blackened lens edges, internal baffling and is parfocal. Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25” filters. Weight approx 190g.

Stock Code
Price
 

HyperFlex™ 7.5mm-21.5mm High-Performance Zoom Eyepiece

£125.00

HyperFlex™ 9mm-27mm High-Performance Zoom Eyepiece

£125.00

Sky-Watcher 12.5mm Illuminated Plossl Eyepiece

Sky-Watcher 12.5mm Illuminated Plossl Eyepiece

Battery operated red LED illuminates the crosshair reticle. 





Stock Code
Price
 
Sky-Watcher 12.5mm Illuminated Plossl Eyepiece
£50.00

10MM Erecting Eyepiece


10MM Erecting Eyepiece

Provides an upright, correctly orientated image for terrestrial observations. Suitable for use with Newtonian Reflector Telescopes or Refractor telescopes. Supplied with extension tube. (1.25"/31.7mm format)

Stock Code
Price
 
10mm Erecting EP (#794)
£25.00

Plossl Eyepiece set

Plossl Eyepiece set

Five quality Plossl type eyepieces in 5mm, 10mm, 15mm, 20mm, 30mm

For an additional £10.00 add an aluminium case with foam-padded interior. (1.25"/31.7mm format) with laser cut foam to take 9 eyepieces supplied with 2 keys.

280 x 220 x 160mm

Stock Code
Price
 
Plossl Eyepiece set
From
£70.00

Eyepiece Case

Eyepiece Case

Quality aluminium case with foam-padded interior. (1.25"/31.7mm format) with laser cut foam to take 9 eyepieces supplied with 2 keys.

280 x 220 x 160mm

Stock Code
Price
 
Eyepiece Case
£30.00

Sky-Watcher Zoom EP's

Sky-Watcher Zoom EP's

7-21mm Zoom Eyepiece (1.25"/31.7mm Format)
8-24mm Zoom Eyepiece (1.25'/31.7mm Format)

Stock Code
Price
 
Sky-Watcher 7-21 Zoom Eyepiece (1.25'/31.7mm Format)
£35.00
Sky-Watcher 8-24mm Zoom Eyepiece (1.25'/31.7mm Format)
£65.00

Barlows

Barlows

The Barlow lens is used to multiply the focal length (Magnifying Power) of the objective lens. It is inserted between the diagonal and the eyepiece. The benefits of using a Barlow lens to increase magnification are: 1. Improved eye relief. 2. Reduced spherical Aberration in the eyepiece.

Stock Code
Price
 
x2 Deluxe Barlow 1.25" (#364)
£30.00
x3 Barlow 1.25" (not Shown)
£49.99

2

2" ED Deluxe Barlow Lens

x2 2" Super-Deluxe ED Barlow (with 1.25" adaptor) 

Stock Code
Price
 
2" ED Deluxe Barlow Lens
£67.00

Diagonals

Diagonals

Diagonal Mirror (1.25"):
Perfect with high-end telescope systems, these diagonals are made to yield maximum astronomical viewing performance.

Erecting Prism (1.25"):
Perfect for both astonomical and terrestrial observing, these fully-coated diagonals offer correctly oriented images with excellent sharpness and contrasts.

Stock Code
Price
 
45º Erecting Prism (1.25"/31.7mm)
£40.00
90º Erecting Prism (1.25"/31.7mm)
£40.00
90º Star Diagonal (1.25"/31.7mm)
£35.00
90º Star Diagonal (2"/5.8mm)
£70.00

Deluxe Di-Electric Coated Star Diagonals

Deluxe Di-Electric Coated Star Diagonals

Available in either 1.25" or 2" sizes the mirrors inside these diagonals have undergone a special high-reflectivity multi-coating process, allowing them to reflect 99% of the precious gathered starlight, providing exceptional brightness and contrast.  (Standard diagonals typically reflect 90-95% of light).

Stock Code
Price
 
1.25"/31.7mm Di-electric Coated 90 degree Star Diagonal
£70.00
2"/50.8mm Di-electric Coated 90 degree Star Diagonal with 1.25" adaptor
£105.00

Binoviewer (with x2 Barlow Lens)

Binoviewer (with x2 Barlow Lens)

Designed to fit into a standard 1.25" eyepiece tube. This binocular attachment features high quality BaK-4 prisms for clearer, sharper images. An excellent accessory, which helps to reduce eyestrain. A x2 specially-designed Barlow Lens is included which effectively doubles the magnification of eyepieces used. Supplied in Aluminium Case.

 

Stock Code
Price
 
Binoviewer (with x2 Barlow Lens)
£170.00

45°-90° Vari-Angle Mirror Diagonal

45°-90° Vari-Angle Mirror Diagonal
 

This convenient mirror diagonal can easily be switched between 45° and 90° viewing , providing comfortable viewing for all observational angle.  Standard 1.25"/31.7mm format.  

 

 

Stock Code
Price
 
45°-90° Vari-Angle Mirror Diagonal
£35.00

Skywatcher Motor focus unit

Skywatcher Motor focus unit

Hands-free focusing device, for accurate focusing, with the minimum of vibration. Dual speed push-button operation (fast & slow). Can be used with the following telescopes: Evostar models 90/102/120/150, Startravel models 80/102/120/150, Skyliner models 150/200/250 & Explorer models150/200/250  

Stock Code
Price
 
Skywatcher Motor focus unit
£45.00

Moon Filter 31.7mm

Moon Filter

Moon Filter 31.7mm  

Stock Code
Price
 
Moon Filter 31.7mm  
£10.00

Moon Filter 31.7mm

Filter Wheel

The 1.25inch 5-position filter wheel requires a light touch to revolve the wheel into its next position with minimal disruption to your scope settings. Each position has a click stop. side of the filter wheel has a 42mm T thread. In eyepiece use you fit the nosepiece on the telescope side and the eyepiece holder on the other. For camera use, the eyepiece holder is replaced with the 42mm Male to Male adapter included in the set giving you the option to connect your T ring or any other piece of equipment that terminates with a 42mm Female thread. A 42mm locking ring is also included as is a 42mm metal dustcap. It is 22m in depth. No filters are included. 

Please note: your focuser will require 20mm of inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel.

Stock Code
Price
 
Filter Wheel 31.7mm  
£60.00

Tal Filter Set

Tal Filter Set

#80A Blue (30% transmission): A popular filter for the study of Jupiter and Saturn. Enhances contrast of rilles and festoons in Jupiter's cloud belts, as well as details of the Red Spot. Brings out detail in Saturn's belts and polar phenomena. Very useful as a contrast-enhancing lunar filter.

P01 Green Filter (24% transmission): Use on telescopes 8" aperture and larger to reject blue- and red-toned structures on the surface of Jupiter and thereby increase their contrast relative to lighter parts of the disc. Also use for the enhancement of Saturn's cloud belts and polar regions. Strongly increases contrast of Mars' polar ice caps, and increases contrast of atmospheric phenomena on Venus. 

#12 Yellow (74% transmission): Contrasts strongly with blue-colored features on Jupiter and Saturn, while enhancing red and orange features. Lightens red-orange features on Mars, while reducing or blocking the transmission, and thereby increasing the contrast, of blue-green areas. Useful in increasing the contrast of lunar features in telescopes 6" aperture and larger.  
 
#25A Red (14% transmission): The #25A filter strongly blocks the transmission of blue and blue-green wavelengths, resulting in very sharply defined contrast between, for example, blue-tinted cloud formations on Jupiter and the lighter-toned features of the disc. Also useful for the delineation of the Martian polar ice caps and maria.

ND 96 Moon Filter
(0.9 density; 13% transmission): The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradiation when observing the Moon with any telescope 4" and larger. The ND96 filter may also be employed in the splitting of close double stars where one of the binary pair significantly exceeds the other in brightness.

 

Stock Code
Price
 
Tal Filter Set
£45.00

1.25

1.25" Lunar/Planetary Filter Set

Comprises 4 x high quality glass colour filters. Yellow (12a) , Red (23a) Green (58a) & Moon/Neutral Density Filter. These filters will fit most internally-threaded eyepiece barrels of 1.25"/31.7mm format. Supplied in attractive foam-lined plastic screw top storage case.
(Colours may differ from image shown).

Stock Code
Price
 
Lunar/Planetary Filter Set 1.25”
£29.00

Light Pollution Filters 1.25

Light Pollution Filters 1.25” and 2”

These contrast-enhancing anodized aluminium, optical glass filters are designed to block out the wavelengths of light emitted by mercury-vapour light and other common causes of light pollution, whilst providing higher transmission at critical hydrogen-alpha and hydrogen-beta lines than competing filters. Bright, light-polluted skies appear much darker, and the contrast between object and sky is improved significantly. This contrast-enhancement effect is particularly apparent on nebulae. Unlike stars, emission nebulae give off light in a very narrow range of wavelengths. These filters allow maximum transmission of the important wavelengths of H-alpha, H-beta and doubly ionized oxygen – the ones most commonly emitted by nebulae. Views of galaxies and star clusters are also enhanced, but to a lesser degree. Also improves contrast on reddish planetary detail. Works well in telescopes of all apertures but is highly recommended for use on smaller telescopes up to 114mm diameter, where conventional filters swallow up too much light. Available in two sizes, threaded to fit either standard 1.25” or 2” astronomical eyepieces. Supplied with storage case.

Stock Code
Price
 
Light Pollution Filter 1.25”
£20.00
Light Pollution Filter 2”
£26.00

UHC (Ultra High Contrast) Filters

UHC (Ultra High Contrast) Filters 1.25" and 2"

The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae. This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae. It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well. The UHC filter is the best all-around dark-sky nebula filter. Available in two sizes, threaded to fit either standard 1.25” or 2” astronomical eyepieces. Supplied with storage case.

Stock Code
Price
 
UHC (Ultra High Contrast) Filter 1.25”
£39.00
UHC (Ultra High Contrast) Filter 2”
£59.00

Variable Polarising Filters

Variable Polarising Filters 1.25” and 2”

These high quality anodized aluminium, optical glass variable polarising filters reduce the amount of light entering your eyepiece. You can progressively dim the view when observing a bright object, such as the Moon or certain planets, to a level according to your needs, whilst increasing contrast, reducing glare and increasing the amount of detail that can be studied. The light transmission can be varied from 40% down to as little as 1%. The filter will not change the colour of the object being viewed and will prevent eye fatigue and loss of night vision. Each filter set consists of two polarizing filters, one which can be rotated in its cell to adjust the brightness. The filters, used as single elements, can also be used for daytime terrestrial use for reducing sunlight glare from lakes oceans or window glass. Available in two sizes, threaded to fit either standard 1.25” or 2” astronomical eyepieces. Supplied with storage case.

Stock Code
Price
 
Variable Polarising Filter 1.25” #200
£29.00
Variable Polarising Filter 2” # 201
£39.00

O-III Narrowband Filters 1.25” and 2”

The O-III narrowband filter is specially designed for the observation of gas and  planetary nebulae.

It distinguishes different contrasts of the wavelengths of light that pass through, giving ideal conditions for the observation of faint super nova remnants and planetary remnants.

The O-III narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm) emitted by diffuse, planetary and extremely faint nebulae. O-III filters work ideally with larger aperture telescopes in the 200mm and  larger range. With larger aperture telescopes, observers will have a better opportunity to identify nebulae objects in the deep sky. It can produce near-photographic views of the Veil, Ring, Dumbbell, Orion, plus many other nebulae under dark skies. These Available in two sizes, threaded to fit either standard 1.25” or 2” astronomical eyepieces. Supplied with storage case.  

Stock Code
Price
 
O-III Narrowband Filter 1.25” #194
£38.00
O-III Narrowband Filter 2” # 196
£60.00

..

UV/IR CUTOFF FILTER (1.25")

This UV/IR cut filter blocks UV and IR rays to maintain the color temperature you want, eliminating false colour fringes around bright stars. Offers a 99.9% light transmission rate for bright and clear images. Suitable for visual observations and for CCD photography.

 

Stock Code
Price
 
UV/IR CUTOFF FILTER (1.25") #208
£39.00

..

HYDROGEN-ALPHA CCD FILTER (1.25")

This long-pass filter limits transmission of light with wavelengths longer than 650nm. Whilst suppressing all other polluting lights, the filter allows you to observe emission nebulae with greatly enhanced contrast. Ideal for observing emission nebulae or objects that emit in the H-alpha region. Suitable only for CCD photography.

 


Stock Code
Price
 
HYDROGEN-ALPHA CCD FILTER (1.25") #210
£49.00

..

CLEAR SKY FILTER (1.25")

This filter blocks night glow and airglow, sodium and mercury emissions (but not UV or IV). This versatile broadband filter is suitable for all objects, whether you are viewing them with your eyes, or capturing them with your camera. Suitable for visual observations and for CCD photography.


Stock Code
Price
 
CLEAR SKY FILTER (1.25") #209
£39.00

DEEP SKY FILTER (1.25")

This filter blocks low and high pressure mercury and sodium vapour lamplight and neon light whilst letting the rest of the visible spectrum through. Excellent for viewing all deep sky objects under the urban sky. Suitable for visual observations and for CCD photography.

 

Stock Code
Price
 

DEEP SKY FILTER (1.25") #211

£39.00

The new Baader AstroSolarT Safety Film (neutral density=5)

The new Baader AstroSolarT Safety Film (neutral density=5)

Baader Planetarium is a safety film for solar observation. It is made for the construction of high-quality objective-filters for observing the sun with telescopes, binoculars, camera or video-lenses. This foil is CE-tested and reduces the intensity of sunlight by 99.999%.

Baader Planetariums AstroSolarTM safety film is a specially manufactured streak- and blisterfree foil. It attains the optical performance of planeparallel glass filters. The base material is not "Mylar"!. The basic development of this film was made in laboratories for nuclear- and particle physics.

High density coatings on both sides of the foil ensures a highly uniform filtering, while neutralizing the occasional miscroscopic holes in the coating. The image of the sun is extremely contrasty and of almost neutral colour.

Please note: Solar observing is dangerous and can be hazardous to eyesight. Safety is everyone's responsibility - please read the safety notes supplied with the product carefully.

Stock Code
Price
 
Baader AstroSolar™ Safety Film (neutral density=5)
£19.00
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