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OPTICRON Telescopes ES

Featuring an upgraded optical system for improved colour contrast and apparent resolution, ES v3 fieldscopes are designed and manufactured to deliver ‘best in class’ optical performance combined with rugged dependability and real user comfort.

Available in three variants; 80mm SD, 80mm ED and 100mm ED the instruments excel in the most important area for the majority of users: image quality. The reduction of almost all visible chromatic aberration at 60x magnification with the 80 SD sets the standard for both definition and tonal quality further improved upon with the 80 ED and 100 ED.

Main features include a tri-element high definition objective lens (SD or ED) with Opticron F-type multi-coating that visibly increases both colour contrast and clarity over standard multi-coatings, magnesium, aluminium and polycarbonate body protected in textured rubber armour plus nitrogen waterproofing to eliminate condensation.

Weight is kept to a minimum and the 'scopes are well balanced for effective use on a tripod. Other features include a retractable lens hood, integrated rubber objective lens cover, conveniently positioned wide band focusing wheel and rotating tripod sleeve to enable maximum versatility in hides or viewing from a sitting or prone position.

Fully compatible with SDL, HDF and HR eyepieces the models offer an exciting array of viewing options of 20x to 100x (80mm) and 30x to 134x (100). For even greater magnification a 2.5x Tele-adapter is available for SDL, HDF and HR eyepieces.

ES models can be converted for use with SLR cameras for telephotography and are supplied complete with a 30 year guarantee.

SPECIFICATIONS

Specifications 80 SD/45 80 ED/45 100 ED/45
Product Code
OG dia (m)
Min Focus (m)
Length (mm)
Weight (g)
40895
80
6
390
1484
40890
80
6
390
1591
40893
100
10
497
2800

 

 

 

 

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Telescope ES 80 GA SD

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ES 80 GA SD/45
The suffix SD for standard belies the quality of this tri-element F500 viewing platform. Utilising Opticron F-type high refractive index multi-coating complete with BK 7 prisms the ES 80 GA SD/45 demands serious consideration for anybody interested in an 80mm fieldscope. Image texture is slightly softer than sister ED model but the instrument deals competently with a range of interspersed colours in varying light conditions up to 60x magnification, combined with accurate focusing and a welcome lack of colour distortion.

Telescope ES 80 GA ED-45°

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ES 80 GA ED/45
The latest optical upgrades, superior RI F-type multi-coating system and ED objective lens that virtually eliminates the distorting effects of chromatic aberration over 35x magnification all combine to further enhance the performance of this our most popular 80mm model. Images are vibrant and ‘true to life’ and what’s more - reproduced consistently across the magnification range.

Telescope ES 100 GA ED-45°

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ES 100 GA ED/45
The advantages of a 100mm diameter objective lens become clear when viewing at magnifications over 50x. With a surface area 1.5x that of an 80mm OG fieldscope, the ES 100 is easily able to out perform similarly specified 80mm (ED and Fluorite models) delivering brighter images with a higher resolving power. For terrestrial use, better definition and higher colour contrast mean more accurate and more enjoyable long range viewing. Preferred eyepieces include the HDF 42xWW, 27-80x and SDL 27-80x. For Astronomy the ES 100's versatility as a compact F650mm 4" refractor with erected image viewing should also be considered. Magnification options for this application include HDF 6mm and 5mm long eyerelief eyepieces delivering 107x and 134x respectively.

Eyepiece zoom HR

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HR EYEPIECES
Good choice as either supplementary eyepiece in combination with HDF or single eyepiece for the more value conscious requiring long eyerelief as all eyepieces offer full field of view with spectacles. Eyepieces in table marked * have a twist-type eyecup.

Eyepiece Code 40812E 40930E 40931E 40932E 40933E*
Magnification (80)
Magnification (100)
Field/1000m (80)
Field/1000m (100)
23x
30x
38
28
27xWA
36xWA
41
32
34xWA
46xWA
33
25
50x
65x
18
10
23-69x
30-90x
29/15
23/11

 

 

 

 

Eyepiece zoom HDF and one magnification

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HDF EYEPIECES
The preferred choice for quality and viewing comfort, HDF eyepieces have large dia. eyelenses and provide 'walk-in' field of vision. All eyepieces feature long eyerelief for full field of view with or without spectacles and fixed magnification models are wide angle. Eyepieces in table marked * have a twist-type eyecup.

Eyepiece Code 40810E* 40809E* 40858E* 40859E 40860E 40861E 40862E*
Magnification (80)
Magnification (100)
Field/1000m (80)
Field/1000m (100) 


23xWW
30xWW
45
33

32xWW
42xWW
36
27
44xWW
58xWW
28
20
50xWA
67xWA
23
16

80xWA
107xWA
16
12

100x
134x
10
7
20-60x
27-80x
35/16
29/12

 

 

 

 

Eyepiece super zoom SDL

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SDL EYEPIECE
An F24 - F8, 5-group 8-element 'super' zoom, the 40935 SDL has been designed to maximise the performance gains inherent in Opticron ED objective lens fieldscopes at higher magnifications. Offering an optimum ratio between field of view and resolution, the main viewing characteristics of the SDL eyepiece are superior cross-field definition at all magnifications coupled with exceptional viewing comfort. Mechanically the eyepiece is waterproof, uses the M41.5 collar thread attachment, features a 90° rotation between high and low magnification settings plus a rotating eyecup that can be positioned to match individual needs. Supplied in soft padded case.

Eyepiece Code 40935E
Magnification (80)
Magnification (100)
Field/1000m (80)
Field/1000m (100)
20-60x
27-80x
32/18
25/14