ES FIELDSCOPES
ES 80 GA SD/45, ES 80 GA ED/45, ES 100 GA ED/45
2004-2006 models
The ES range sets a benchmark in affordable high definition Fieldscopes. Available in three variants: 80mm, 80mm ED and 100mm ED, the models are designed with one aim in mind; to provide 'best in class' optical performance and value.
The reduction of almost all visible chromatic aberration at 60x magnification on the base model ES 80 GA SD and sets the standard for definition and tonal quality that is successfully built upon with the more advanced ES 80 GA ED and ES 100 GA ED models.
Weight is kept to a minimum by the selective use of tough plastics and aluminum components and the models are surprisingly well balanced for effective field use on a tripod.
All three are fully compatible with SDL, HDF and HR eyepieces providing an exiting array of viewing options of 20x to 100x (80mm models) and 30x to 134x (100mm).
Other features include full rain waterproof construction, a retractable lens hood, conveniently positioned wide band focusing wheel and rotating tripod sleeve to enable maximum versatility in Hides or viewing from a sitting or prone position.
Each model can also be converted for use with SLR cameras for Telephotography (see below) and are supplied complete with a comprehensive 30 year guarantee.
ES 80 GA SD/45
ES 80 GA SD/45
Fully multi-coated and complete with a BK7 prism unit, the ES 80 GA SD/45 demands serious consideration for anybody interested in an 80mm fieldscope. Image texture is softer than sister ED model but the instrument deals competently with a range of interspersed colours in varying light conditions combined with accurate focusing and a welcome lack of colour distortion.
ES 80 GA ED/45
ES 80 GA ED/45
Since its launch in 2001 the ES 80 GA ED /45 has become one of the most popular birding 'scopes in the UK . The ED (extra low dispersion glass) element within the objective lens system virtually eliminates the distorting effects of chromatic aberration at magnifications over 35x. To benefit from this level of performance in a body retailing under £500 has caught the imagination of thousands of birdwatchers wanting vibrant 'true to life' images reproduced consistently across the magnification
range. The model is most often seen with HDF eyepieces 20-60x and 32xWW.
ES 100 GA ED/45
ES 100 GA ED/45
The advantages of a 100mm diameter objective lens cannot be overstated when viewing at magnifications over 50x. Having a surface are 1.5x that of an 80mm OG Fieldscope, the ES 100 GA ED is easily able to outperform 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 HDF eyepieces include a 30xWW and 42xWW plus the 27-80x zoom.
For Astronomy, the ES 100's versatility as a compact F650mm 4 inch refractor with erected image viewing should not be underestimated. Magnification options for this application include 6mm and 5mm long eyerelief eyepieces delivering 107x and 134x respectively.
SPECIFICATIONS
| Specifications | 80 SD/45 | 80 ED/45 | 100 ED/45 |
|---|---|---|---|
| Product Code OG dia (m) Min Focus (m) Length (mm) Weight (g) Price £ inc. VAT |
40895 80 6 397 1370 349* |
40890 80 6 397 1414 479* |
40893 100 10 510 2250 799* |
*SRP £ Mar 2006
EYEPIECES
A wide range of eyepieces are available for use with ES Fieldscopes.
Choosing the best eyepiece is often confusing but making the right choice will depend on price and application. It is important to remember that the eyepiece is an integral part of the whole set-up and opting for a lower quality lens will make a difference to the overall image quality derived from the fieldscope.
SDL EYEPIECE CLICK FOR IMAGE
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) Price £ inc. VAT |
20-60x 27-80x 32/18 25/14 229 |
HDF EYEPIECES CLICK FOR IMAGES
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) Price £ inc. VAT |
23xWW 30xWW 45 33 129 |
32xWW 42xWW 36 27 149 |
44xWW 58xWW 28 20 169 |
50xWA 67xWA 23 16 99 |
80xWA 107xWA 16 12 99 |
100x 134x 10 7 99 |
20-60x 27-80x 35/16 29/12 189 |
HR EYEPIECES CLICK FOR IMAGES
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) Price £ inc. VAT |
23x 30x 38 28 57 |
27xWA 36xWA 41 32 57 |
34xWA 46xWA 33 25 57 |
50x 65x 18 10 57 |
23-69x 30-90x 29/15 23/11 139 |
TELEPHOTOGRAPHY
Telephotography, (taking high magnification photographs) is now easier then ever to enjoy using Opticron telescopes in conjunction with either D-SLR / SLR cameras, digital compact cameras or camcorders. CLICK HERE for more information on telephotography with ES scopes.
ACCESSORIES
CLICK HERE for information on Waterproof cases
CLICK HERE for information on Traveller carry cases and Eyepiece cases
CLICK HERE for information on Tripods and Mounts
CLICK HERE for information on the 2.5x Universal Tele-adapter for SDL, HDF and HR eyepieces
