EXPLORE SCIENTIFIC 82° Ar Eyepiece 11mm (1,25") (Refurbished)

One eyepiece for every occasion, with very good field correction and large field of view.The BRESSER Zoom Eyepiece Deluxe covers the large focal length range from 8 to 24 mm. These are also the focal lengths most frequently used with most telescopes. Especially for instant observations, where you don't want to pack a whole suitcase full of eyepieces, the zoom eyepiece is a good choice. The Deluxe version offers with its particularly advanced optical design with 9 elements in 6 groups an even better field correction and sharpness, combined with a large apparent field of view of 40 up to 62 degrees.Always the ideal magnification on handA quick turn and the ideal magnification for you is set. The adjustment is stepless from 8 to 24 mm focal length. This eliminates the need to always change eyepieces.Comfortable viewingThe BRESSER Zoom Eyepiece Deluxe offers a large comfortable eye relief (LER) of 20 mm to the eyepiece lens. This means a comfortable view even during longer observation, an important criterion especially for people wearing glasses. The rubber eyecup can also be individually adjusted by a twisting movement.Advanced optical designTo achieve the best possible image over the entire focal length range, a particularly advanced optical design with 9 lenses in 6 groups is used. The full multi-coating on all lens surfaces also guarantees maximum light transmission. To effectively suppress unwanted reflections, all lenses are carefully blackened at the edges. Thus, the image produced offers the maximum possible contrast and image brightness.Compact and solid designThe BRESSER Zoom Eyepiece Deluxe is made entirely of black anodised aluminium. It has an extremely solid and high-quality material appearance and is long-lived, even with extensive use. The precise zoom mechanism can be adjusted safely through the rubberised adjustment ring. A white laser engraving with focal length and pointer arrow shows the current focal length setting even in low light.Achievable magnifications with common telescope focal lengths350mm: 44 - 15x400mm: 50 - 17x500mm: 63 - 21x650mm: 81 - 27x750mm: 94 - 31x900mm: 113 - 38x1000mm: 125 - 42xFEATURESDeluxe version with even better field correction and sharpnessLarge apparent field of view 40 up to 62 degreesZoom eyepiece with stepless focal length adjustment from 8-24 mmOne eyepiece covers a wide focal length rangeStepless adjustment to ideal magnificationQuick adjustment of magnification without changing eyepiecesComfortable eye relief of 20 mm (LER = long eye relief)Adjustable rubber eyecup to adjust to ideal interpupillary distanceAlso very suitable for eyeglass wearersCompact and solid designMade entirely of black anodised aluminiumAluminium dust cap with threadVery high-quality material appearancePrecise and robust zoom adjustment mechanismRubberised grip surface for zoom adjustmentWhite laser engraving with focal length and pointer arrowFocal length range 8-24 mm freely adjustableOptical design: 9 lenses in 6 groupsAll lens surfaces have full multi-coatingEyepiece sleeve diameter: 1.25 inches / 31.7mmFilter thread in sleeve: M28 x 0.6 mm (standard 1.25'' filter thread)Eyepiece weight: 315 gLength of eyepiece: 102 mmDiameter: 52 mmColour: blackSCOPE OF DELIVERYDeluxe zoom eyepieceMetal dust cap for eyepiece lensPlastic dust cap for eyepiece sleeve