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Product Description
The Olympus 8×40 DPS IBinoculars: As Natural in the Hands of a Nature Lover as Nature
Itself
Offering a wide angle field of view fortracking fast moving subjects and a near focus distance of four metres, thesestandard 8×40 DPS I porro prism type binoculars are pitched at natureenthusiasts wanting to get closer to skittish wildlife, plus sports enthusiastswanting to pull the action that much nearer for a better view.
How to read binocular specifications
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Boasting a durable, high quality finishwith the advantage of sure grip rubber coating, these stunning binos come withhigh-grade optical components to ensure a perfect view even in low lightconditions.
Further desirable qualities includeaspherical lens elements for minimal distortion, anti reflective lens coatingfor better image brightness, contrast plus quality, along with UV rayprotection for worry-free viewing. Peace of mind and years of pleasure arefurther guaranteed thanks to a 25-year European warranty.
Exit pupil explained
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Delivers Optical Perfection,Whether Day or Night
This particular model offers an 8xmagnification and a 40mm objective lens diameter. As it sounds, the 8xmagnification produces an image that appears as if the user were eight timescloser to their subject, while the objective lens diameter refers to how muchlight can be gathered to form that image. While for daytime use a lens diameterof 21 to 25mm is useful, for night-time viewing something between 35 to 50mm isrecommended. Therefore the 40mm specification here indicates excellentsuitability for low light visualisation.
Also worth considering for low lightwork is the exit pupil. Here that is 5mm, which for 8×40 binoculars is arrivedat via 40 divided by 8 = 5 exit pupil in mm, so beyond the 2-3mm which isgenerally thought of as being suitable for daylight use. Another thing to takeinto account is the field of view, which here is a wide 143 metres, and isdefined as the width of the viewable field at a distance of 1000m from thepoint of observation.
Angle of view
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Versatile and Bright, theseBinos Will Have You Reaching for the Stars
Offering an 8x magnification to bringfaraway points of interest that much closer plus a 40mm objective lensdiameter, the Olympus 8×40 DPS I Binoculars incorporate fully coated lenses todeliver maximum image brightness, visual impact and image defining contrast.
Fast and easy focusing is providedcourtesy of a large, centrally placed knob. The 8×40 DPS I model further sportsa 12mm eye relief for extra comfort, plus diopter adjustment for comfortableviewing without glasses.
Prism types explained
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Engineered for Excellence,Built to Last
Boasting a tactile and ergonomic designand weighing a solid feel 710g, the Olympus 8×40 DPS I measurements are amanageable 182x139x58mm, while the package includes a neck strap, case andprotective lens covers.
In summary,with a lens configuration of 6 elements in 4 groups, and a 10-12mm eye relief,the field of view at 1000m is 143m. The actual field of view is 8.2 while theapparent angle of view is 65.6.
Category: Cameras and Photography:Telescopes and Binoculars:Binoculars and Monoculars
Location: Manchester
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