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Pentax 8×21 Jupiter III Binoculars – GreenDescriptionColour Name:Green Pentax Jupiter III ManufacturersDescription There is no excuse not to have binoculars with the 160 grams andparticularly small Jupiter III Universal binoculars, suitable in differentsituations. BaK4 prisms and multi coating on the built-in lenses, give thisoptical mini an exceptionally high contrast-rich, bright view. Jupiter III isthe perfect partner for sporting events, concerts, as well as for hiking andtravelling. Inner Focusing The Inner Focus function is critical to low-maintenance and long life guarantee. Exposure to airborne particles andmoisture is avoided, thereby ensuring that no outside influences can penetratethe binocular housing and disrupt functionality. High Quality BaK4 prism toenhance transmission and resolution A prism is a complex optical elementnecessary to correct the image the right way up and reduce overall length ofthe binocular. In a prism, light travels through complicated angles and so thequality of the prism glass used is of significant importance. PENTAX usesexclusively high-index BaK4 prisms, made of very pure Barium glass.Manufacturer’s Description SMALL AND PORTABLEThere is no excuse not to havebinoculars. Because at just 160 grams and particularly small the Jupiter IIIUniversal binoculars suitable in BaK4 prisms and multi-coating on the built-inlenses, give this optical mini anexceptionally high contrast-rich, brightview.Jupiter III is the perfect partner for sporting events, concerts, as wellas for hiking and travelling.MagnificationThe first number in the product nameindicates themagnification. For model Jupiter III 8×21, this is the 8x, andmeans that you see with this binocular an object 8x larger than with the nakedeye. In general: the higher the magnification the smaller the field of view.The recommendation is generally amaximum magnification of 10x. Largermagnificationsmake it more dificult to keep the binoculars still and preventimage shake whilst viewing.Objective diameterDiameter of the front lens of thebinoculars. In ourexample model Jupiter III,t his is the second number intheproduct name on the lens and is in mm. In this case21mm. The larger theobjective lens is, the more light intothe binoculars, especially important ifbinoculars or aspotting scope are to be used in low light. However, allrangelens diameters increase the weight, size and constr uctioncost.ExitpupilThe exit pupil is the small bright area that is seen in t heeyepiece ofthe binoculars. It should be circular and ismeasured in mm. (Note: If thisshape appears hexagonalrather than round, this is an indication that aninferiorprism was used.) Calculating the size of the exit pupil isfound bydividing the objective diameter by themagnification value. For model JupiterIII, this results inan exit pupil of 2.62 mm. IMPORTANT: For comfortableusebinoculars should align both the size of the exit pupiland the pupil size ofthe user as closely as possible. Thepupil diameter of the human eye changeswith age. See all Product descriptionFeatures10 x MagnificationEffective diameter of objective lens 21 mmExit pupil aperture: 2.63 mmEye relief: 10 mmFocusing range: About 15 ft. to infinityProduct DetailsItem Weight: 195 gBoxed-product Weight: 222 gItem model number: 51036Shipping & HandlingOrders are shipped within one day and tracking information is provided as soon as it is available from our carriersPlease ensure the correct shipping address is provided at the time of purchase. We cannot correct your address after purchase. We will not be responsible for incorrect addresses or undeliverable addresses. Return PolicyReturns within 14 days are excepted and a 15% restocking fee will be charged.
Category: Cameras and Photography:Telescopes and Binoculars:Binoculars and Monoculars
Location: GB
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