Explore Scientific LER 52° 25 mm 1,25" okular (AR)

Solidly in the mid-magnification range for most amateur telescopes, the 25mm is a true workhorse for visual observers. If you love deep sky observing, eyepieces in this focal length range not only give healthy increases in magnification, but the contrast enhancement of giving a darker background sky can make all the difference of how galaxies and nebulae appear under suburban skies. The Explore Scientific 52° LER mid-range focal length eyepiece is excellent flat-field multi-element ocular that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, this eyepiece offer incredible value in a very nice eyepiece. These eyepieces are the choice for observers wearing glasses – with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patented EMD-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed – this makes sure you will be able to enjoy these eyepieces for many years to come. Features: Large eye distance, large field and great image sharpness Excellent viewing position for people with glasses Excellent field sharpness even with fast optics 52° apparent field of view Argon-purging prevents internal fogging, the sealing facilitates cleaning Patented EMD-coating to maximize contrast Blackened lens edges to avoid reflexes All eyepieces of this series are parfocal Stainless steel barrel with conical security cutoff The kit includes: 52° eyepiece Dust covers Protective bag MárkaExplore ScientificSzavatosság2 годаEAN4007922050973A csomag méretei (HxSzxM):14x11x10 cmSzállítási súly0.35 kgVízállóyesVédősapkák a készletbenyesFókusztávolság, mm25Látómező, °52Szemtávolság, mm16.4Látómezőhatár átmérője, mm22.7SzűrőmenetyesOldalsó szélek sötétítéseyesParfokálisyesArgon-tisztítottyesO-gyűrűyesOptikai rendszer4 alkotóelem 2 csoportbanSzemlencsetubus átmérője, hüvelyk1,25Optikai elemek anyagaoptikai üvegLencse bevonatatöbbrétegben bevonatolt EMDVázrozsdamentes acélA nedvesség/víz elleni védelem mértékemerülési mélység 1 m legfeljebb 30 percigSzemkagylógumi, összecsukhatóTok/doboz/táska a készletbenporvédő