16 Butts Ash Gardens, Hythe, Southampton. SO45 3BL

Telephone 023 8084 2801

Astro telescopes and lenses from Helios
And a few accessories.

 All the accessories listed below are in stock
If there is any other astro item you want that is not listed please let us know
and we will see if we can obtain it and at what price.
We can also send you an e-mail with a picture of any of these accessories.
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Ploessl 31.7mm fitting eyepieces.

Fully coated. Large eyelens with rubber eyecup
REFERENZ Lenses

40 mm
£26

32 mm

£26

25 mm

£26

20 mm

£26

15 mm

£26
10 mm
£26
7.5 mm
£26

6.3 mm

£26

Konus 20 mm

£26

Japanese Kellner 31.7mm fitting eyepieces

Multi coated.

18mm

£16

12mm

sold

6mm

£20

Chinese Kellner 20mm  31.7mm fitting eyepiece with sun and moon filters £28 one only.

24.5 mm Erecting prism £20

Moon filter to fit 31.7mm EPs £8

Japanese Orthochromatic 24.5mm fitting eyepieces.

4mm £30

5mm

£30

6mm

sold

9mm

sold

18mm

sold

25mm

sold

Japanese 24.5mm AH40mm £30
 

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24.5mm Accessories.

Nebula Filter Japanese 22mm  £20

Nebula Filter Hitachi 22mm £20

Moon Filter 22mm £12

22mm holder/red/yellow glass £10

Star Diagonal sold

Sun Filter 22mm  £12

24.5 to 31.7mm eyepiece adapter £20

T-18 terrestrial lens  £8

Moon Filter 23mm £12

Mini erecting prism 23mm £30

Sun projection prism £30

Sun Filter 23mm £12

2" to 1.25" ( 50mm to 31.7mm ) eyepiece adapter £17
1" to 1.25" ( 24.5 to 31.7 mm ) eyepiece adapter £17

Other general accessories.

Sun Projection Screen for Refractor  £20

Sun Projection Screen for Reflector £20

Spare counter balance weight £5

  

Red Dot Finderscope as fitted to Skywatcher telescopes £21.30

Adapter to fit Red Dot Finder in place of 5x30 optical finder £5
Bracket for Finder £11.50

One pair 10x stereo microscope eyepieces

in 30 mm fittings. £18

  

Japanese 50.8mm rack & pinion focuser. One only in stock but more available. £48. RRP £99
60mm telescope object lens. Mirador Merlin/Opticron Classic. £20

Sky-watcher Reflector Telescopes

 

 

ACUTER 'MAK-70' 25-75X70 MAKSUTOV-CASSEGRAIN SPOTTING SCOPE
 

This rubber clad spotting scope may be compact, but is capable of high magnifications provided by the Maksutov-Cassegrain optical design.  This special design effectively 'folds' a long focal length into the confines of a short tube.  The optics are naturally Fully Multi-Coated for excellent light transmission, resolution and contrast.  Focusing is ultra-smooth and is operated by rotating a control conveniently positioned on the right side of the body.  Standard 1/4-20 Tripod Bush.  Colour/Material: Black Rubber £69

A guide to the light gathering ability of different front lens sizes.

Object Lens mm                                   Increase in light gathering

60mm   to         70mm                           36 %
60        to         80                                77
70        to         90                                65
76        to         114                              125
80        to         102                              62
90        to         102                              28
102      to         120                              38
102      to         127                              55
114      to         130                              30
114      to         500                              73
120      to         150                              56
150      to         200                              77
200      to         250                              56

 
 

 

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