{"product_id":"pentax-smc-xw23-85-70542","title":"Pentax SMC XW23 85° 2\" Eyepiece (70541)","description":"\u003ch2\u003ePentax SMC XW23 85° 2\" Eyepiece\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe Pentax XW23 85° has a 85° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-Application Viewing.\u003c\/p\u003e\n\u003ch4\u003eLong-Focal-Length Eyepieces, Ideal for Nebula and Star Cluster Observations\u003c\/h4\u003e\n\u003cp\u003eThanks to their long-focal-length design, the new XW30-R and XW40-R eyepieces will let you observe large celestial bodies spreading across the night sky, such as the Pleiades star cluster and the Andromeda Galaxy, in their entirety. * * When mounted on an astronomical telescope with a focal length of 1000mm.\u003c\/p\u003e\n\u003ch4\u003eClear, Comfortable Viewing Assured by 70° Apparent Angle of View and 20mm Eye Relief\u003c\/h4\u003e\n\u003cp\u003eAll smc PENTAX XW-series eyepieces feature an extra-wide 70-degree apparent angle of view and an extra-long 20mm eye relief to deliver an exciting, wide-perspective image.\u003c\/p\u003e\n\u003ch4\u003eHigh-Grade Optics for Exceptional Image Quality\u003c\/h4\u003e\n\u003cp\u003eThe high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.\u003c\/p\u003e\n\u003ch4\u003ePENTAX-Original Multi-Layer Coating for Outstanding Light Transmission Efficiency\u003c\/h4\u003e\n\u003cp\u003eAll lens surfaces that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating, to offer the light transmission efficiency of more than 90 percent (an astonishing 96 percent at 550nm) over the visible light spectrum.\u003c\/p\u003e\n\u003ch4\u003eAdvanced Light-Shielding Technology for Improved Image Contrast\u003c\/h4\u003e\n\u003cp\u003eThanks to PENTAX’s advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.\u003c\/p\u003e\n\u003ch4\u003eComprehensive Lineup to Accommodate All Applications\u003c\/h4\u003e\n\u003cp\u003eFeaturing functional, practical focal lengths, the XW eyepiece series provides a comprehensive lineup that accommodates all types of applications, from low-magnification viewing of stars to high-magnification observation of planets.\u003c\/p\u003e\n\u003ch4\u003eWeatherproof Construction for All-Weather Viewing\u003c\/h4\u003e\n\u003cp\u003eThe XW series features JIS Class 4 weatherproof construction,* making it possible to use it in drizzle or under night dew. * The XW-series eyepieces are not designed for underwater use and should not be submerged under water.\u003c\/p\u003e\n\u003ch4\u003eSleeve Size and Eyecup Design\u003c\/h4\u003e\n\u003cp\u003eThe XW series provides a choice of two installment diameters: American-standard 31.7mm version, and 50.8mm (two-inch) version. When you remove the screw-on eyecup, it also provides a screw thread with a 43mm diameter and a 0.75 pitch.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\" data-pdp-tab-content=\"description\" class=\"pdp-content-description rte active\"\u003eIn the Box\u003c\/h3\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"whats-in-the-box\"\u003e\n\u003cul data-mce-fragment=\"1\" class=\"wbox\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLens Cap\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTube Cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFrom the original date of purchase, RICOH IMAGING CANADA INC. provides a limited Canadian lifetime warranty for most* \u003cstrong\u003ePENTAX Binoculars\u003c\/strong\u003e purchased within Canada from a Ricoh Imaging authorized dealer.\u003c\/p\u003e","brand":"Pentax","offers":[{"title":"Default Title","offer_id":43950893301989,"sku":"PEN-70541","price":750.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/pentax-smc-xw23-85-70541-2-eyepiece-astronomy-plus-1.webp?v=1690489230","url":"https:\/\/istronomyplus.com\/products\/pentax-smc-xw23-85-70542","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}