Home :: NATURE OBSERVATION :: Binoculars (Large) :: Delta Optical Binoculars :: Delta Optical Extreme 10x50 ED Waterproof Binocular

Delta Optical Extreme 10x50 ED Waterproof Binocular

Manufacturers View products from this brand

in In stock (2)
2.80 kg
Our price:
including VAT 20.00 % ( £39.33 )

The Extreme 10x50 ED is a modern observation binocular for those seeking uncompromising optical solutions. The latest optical technology supported by solid mechanics has been used in the construction of this powerful optical instrument and as a result, it performs very well and is extremely reliable.

The lenses that come with high quality anti-reflection coatings, Fully Multi Coated (FMC) lenses with a special ED glass element help to eliminate chromatic aberration that improves the overall sharpness of the image. A small amount of chromatic aberration is only visible at the very edge of the field of view.
Thanks to the above mentioned FMC coatings and the powerful, high quality prisms, there is no need to worry about vignetting or darkening of the image at the edge of the field of view. The FMC coating covers all optical elements of the binocular that results in over 90 percent light transmission through the system.

The optical quality of the Extreme 10x50 is incomparable with the quality of cheap, popular binoculars with similar parameters. The image is extremely bright and sharp throughout the field; aberrations are practically absent and contours of objects are expressive, and let us observe minute details that are unobtainable in the lower class. It is designed for applications with more serious binoculars in mind and so its optical performance is being supported by excellent mechanics, too.

The Extreme 10x50 is very durable to extreme temperatures: it can be used between minus 40 degrees of cold and 70 degrees of heat! The robust casing is designed to withstand a certain level of knocks, shocks and impacts during transportation and use. So don't be afraid, take with yourself on your trips all around the world.

Due to the size, weight and high magnification of these binoculars we would recommend to use them on a tripod. Tripod adapter is included.

The Delta Optical Extreme 10x50 ED is equally good for landscape observation, observation of birds, wildlife, ships, airplanes and general nature observation. Will provide good magnification while maintaining the fairly high-brightness of the image. Observers will also enjoy the comparatively wide-angle views.

First and foremost, however, this binocular is a great piece of equipment for astronomical observations with a compact size and wider field than the 15x70 version. Perfectly suited for observations of bright nebulae, comets, clusters, galaxies and large portions of the Milky Way. The stars visible in the field of view will be pinpoint sharp and in the absence of chromatic aberration will retain their natural colours. Thanks to the presence of the FMC layers, glare around the Moon is barely visible and so observation of objects near to the Moon is possible.


According to customer feedback this binocular can be used with glasses, although not the complete field will be visible. Better choice might be for you the Extreme 7x50 version. Click here!

Warranty: 5 years

  • Delta Optical Extreme 10x50ED
  • Prism: BaK-4 porro
  • Magnification: 10 x 
  • Lens diameter: 50 mm
  • Apparent field of view of eyepiece: 65 degrees
  • Eye relief: 18.5mm
  • Focusing System: INDIVIDUAL FOCUSING
  • Minimum focus: 6m
  • Angular field of view: 6.5 degrees 
  • Linear field of view: 114m /1000m
  • Focusing: individual
  • Exit pupil: 5 mm 
  • Pupil distance: TBC mm
  • Twilight factor: 25
  • Relative brightness: 22.4 
  • Nitrogen filled: Yes
  • Waterproof: Yes
  • Coating of the metal body: special, high-quality rubber veneer
  • Tripod adapter: Yes
  • Case: hard case included
  • Dimensions: 186x215 mm 
  • Weight: 1600 g

You might find it interesting that the 15x70 version of this binocular achieved 5th place in competition against much more expensive binoculars from Nikon and Carl Zeiss.
It is in Polish, but we've provided a link below to an online translated version (translated by Google Translate):
Optical Product of the Year 2012

: *
: *
: *
Fluorite Flatfield Converter (FFC)/4x-8x
Lacerta Genetic Digital Microscope 40X-1000X with USB Camera
Light Pollution Filter (2") by OVL
Celestron CPC Deluxe 1100 HD Computerised Telescope
TeleVue T-Ring Adapter for PMT-2200 2x 2" Powermate
There have been no reviews

Only those who bought this product are allowed to add review
If you've already bought this product, please sign in and add your own review!
The website uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to this policy. Click to learn more.