Opticron ES 100 GA ED v4 Angled Body Spotting Scope


ES 100 GA ED v4 Spotting Scope

The advantages of a 100mm objective lens become clear when viewing over 50x. With 1.5x the surface area, the ES 100 easily out-performs similarly specified 80mm (ED and Fluorite models) delivering brighter images with a higher resolving power. For terrestrial use, recommended eyepieces include the HDF 42xWW, 27-80x and SDL 27-80x. For astronomy, the ES 100 GA ED is a compact 650mm focal length 4” ED refractor with erect image viewing and a choice of high quality fixed magnification eyepieces on offer. It is suitable for high magnification viewing of lunar and planetary targets or wide field objects using lower power eyepieces. With a resolving power of 1.16”, the ES 100 is easily able to split double stars at a range of magnifications.

  • 100mm ED lens design
  • Opticron F-type multi-coating for superior colour contrast and clarity compared to ‘standard’ multi-coatings
  • Lightweight magnesium and alloy body
  • Fully protected in soft touch textured rubber armour
  • Nitrogen waterproof
  • Wide wheel focuser with accurate 8:1 ratio dual focus system
  • Retractable lens hood
  • Integrated objective lens cover
  • Large footprint +/- 90° rotating tripod sleeve
  • Telephoto option for SLR photography



ES Fieldscopes are fully compatible with Opticron SDL, HDF & HR2/3 eyepieces. Recommended eyepieces for general observation include;

41270 SDLv3 27-80x
40862E HDF T 27-80x 
40810E HDF T 30xWW
40831E HDF T 42xWW


ES 100 GA ED v4 Fieldscopes are supplied in body only format with integrated objective lens cover


30 year

Shipping will be based on your order value - see below for more detailed information.





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We will buy or part-exchange your cameras, lenses, accessories, spotting scopes and binoculars.

We are able to give you a rough price - however we will need to see your gear to give you a final price.

The market fluctuates rapidly and there are a number of considerations we have to make when purchasing equipment from our customers. Our prices undoubtedly are less than you would get if you were to sell privately. The reason for this is, when we sell them to a customer we have to provide a warranty - and with growing costs for repairs this has to be a key consideration.

We’ll always offer as fair a deal as possible and are happy to negotiate or in some instances offer a commission sales basis.

To enquire about selling or part exchanging any items, please complete our online form and ensure you select 'Selling / Part Exchange' within the enquiry type dropdown. 

Get in touch!

Many thanks, Justin

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