{"product_id":"pro-penta-prisma-90-1-25","title":"Pro Penta Prism 90° 1.25''","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003ePentaprism: Natural Orientation for 90° Viewing with Ultra-Clear Image in Telescopes\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Omegon Pentaprism is a five-sided prism for refractors and catadioptric telescopes that provides an inverted image, as if you were looking through the telescope without it. With this prism, you will enjoy very comfortable observations, without impossible postures, at 90 or 45 degrees (depending on the version). It is very useful for orienting yourself with a lunar or star chart!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSummary of advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNatural 90° orientation, for observing through the telescope as if looking directly through a lens telescope\u003c\/li\u003e\n\u003cli\u003eHelps with orientation on lunar and star charts\u003c\/li\u003e\n\u003cli\u003e29 mm optical path, for shadow-free viewing even at long focal lengths and in wide fields of view\u003c\/li\u003e\n\u003cli\u003e120 mm optical path length\u003c\/li\u003e\n\u003cli\u003eBetter image quality than with an Amici prism\u003c\/li\u003e\n\u003cli\u003eExact 90° optical angle, regardless of the angle of incidence\u003c\/li\u003e\n\u003cli\u003eClamping screw and 1.25\" filter thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eOrientation for navigating lunar and star charts\u003c\/b\u003e\u003cbr\u003eWhen it comes to celestial navigation, it's very easy to get disoriented. Especially when working with lunar charts and some star charts. To identify a specific lunar crater, you first have to flip the image obtained through a star diagonal, which is right-side up but laterally inverted. And that's not easy! However, with the pentaprism, you save yourself this complicated task. To get the correct orientation, simply rotate the star chart 180°.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUltra-clear images with rich contrast\u003c\/b\u003e\u003cbr\u003eBK-7 glass, dielectric, and multi-coated surfaces: these three technical features are why the images are so bright and clear with such high luminosity. But furthermore, the image quality is far superior to what a good Amici prism offers. And it's all due to the unique design, which lacks the edges found in other prisms that contribute to image degradation. This pentaprism is an optical work of art carved from a single piece.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNo vignetting for views without darkened edges\u003c\/b\u003e\u003cbr\u003eYou can use long focal length or wide field of view eyepieces. A great advantage of the 29 mm optical path is that your clear view of the sky will not be limited.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAnodized housing with anti-reflective darkening\u003c\/b\u003e\u003cbr\u003eInside, the prism is darkened and opaque. This maintains good contrast for more enjoyable observation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePentaprism: a professional accessory for astronomical observations\u003c\/b\u003e\u003cbr\u003eWhen it comes to correctly orienting yourself on a star chart, the pentaprism is a real blessing, because it maintains the normal image orientation of refractor telescopes. This accessory is a five-sided prism equipped with two highly reflective surfaces. The incoming light always takes a right-angle path, whether it enters directly or diagonally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omegon","offers":[{"title":"Default Title","offer_id":53581588496727,"sku":"57292","price":180.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/6198\/6860\/files\/57292_3.jpg?v=1779016146","url":"https:\/\/astrotelescopios.com\/en-efta\/products\/pro-penta-prisma-90-1-25","provider":"Astro Telescopios","version":"1.0","type":"link"}