{"product_id":"pentax-8-5x21-u-series-papilio-ii-binocular-close-focus-clarity","title":"Pentax 8.5x21 U-Series Papilio II Binocular - Close Focus Clarity","description":"\u003cp\u003eIn this review the Pentax 8.5x21 U-Series Papilio II proves itself as a compact, dual-purpose optic for both close-up subjects and distant scenes; it is best for birders, insect observers and hikers who want a tiny, lightweight pair that still delivers sharp, bright images. The single biggest reason to buy is the combination of a 2 ft minimum focus and fully multi-coated optics, which together let a user move from detailed macro views of butterflies to confident long-range spotting without swapping gear.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.5x Magnification:\u003c\/strong\u003e Provides notable enlargement while keeping image jitter low for hand-held use, making distant subjects easier to inspect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi Coated Optics:\u003c\/strong\u003e Maximizes light transmission and reduces internal glare and flare for clear, high-contrast views in varied light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAspherical Lens Elements:\u003c\/strong\u003e Deliver exceptional edge-to-edge sharpness so subjects at the edge of the field are as clear as those in the center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUni Body Design:\u003c\/strong\u003e Locks the objective lenses into a single housing and synchronizes eyepiece movement for durable, long-lasting mechanical stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClose Focus 20 in:\u003c\/strong\u003e Allows detailed observation of nearby subjects like butterflies, flower petals and tracks without needing a separate loupe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact, Lightweight Form:\u003c\/strong\u003e Small 21 mm objectives and a tight profile make it easy to carry on hikes or in a field vest without adding bulk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Papilio II is aimed at bird watchers, naturalists and casual photographers who value portability and close-focus ability; the 8.5x power and 21 mm objectives suit day trips, backyard watching and travel where weight and size matter. Its combination of near focus and decent magnification makes it particularly useful for insect and flower study as well as scanning trees and mid-distance vistas.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users who need very low-light performance at dusk or dawn, or people who require larger objective lenses for extended astronomical use; this compact optic emphasizes size and versatility over maximum light gathering in dim conditions.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent close-focus capability lets users inspect small details at about 20 in with strong clarity.\u003c\/li\u003e\n\u003cli\u003eFully multi-coated optics and BAK4 Porro prisms provide bright, high-contrast images with minimal flare.\u003c\/li\u003e\n\u003cli\u003eCompact, lightweight design makes it easy to carry for long periods without fatigue.\u003c\/li\u003e\n\u003cli\u003eUni body construction enhances durability and keeps optical alignment steady through use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmall 21 mm objectives limit light gathering compared with larger models, so low-light performance is modest.\u003c\/li\u003e\n\u003cli\u003eFixed 8.5x magnification may not suit users wanting variable zoom or higher power for distant viewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification\u003c\/td\u003e\n\u003ctd\u003e8.5x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Diameter\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Focus\u003c\/td\u003e\n\u003ctd\u003e20 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Type\u003c\/td\u003e\n\u003ctd\u003eBAK4 Porro prisms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coating\u003c\/td\u003e\n\u003ctd\u003eFully multi coated optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eUni body with aspherical lens elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of View\u003c\/td\u003e\n\u003ctd\u003e6 angular degrees (51 apparent angle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Pentax Papilio II is a strong choice for nature observers who need a lightweight, durable binocular that doubles as a close-focus tool; its sharp optics and compact form deliver real value for bird watching and bug study, though users seeking superior low-light performance should consider larger objectives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow close can these binoculars focus?\u003c\/strong\u003e\u003cbr\u003eThey focus down to about 20 in, allowing detailed views of butterflies, flowers and other nearby subjects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the optics bright enough for field use?\u003c\/strong\u003e\u003cbr\u003eYes; the fully multi coated optics and BAK4 prisms provide bright, high-contrast images in typical daylight and overcast conditions, though very low-light situations will show limits due to the 21 mm objectives.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this model durable for outdoor use?\u003c\/strong\u003e\u003cbr\u003eThe Uni body design locks the objectives in a single housing and synchronizes eyepiece movement, reducing moving parts and increasing mechanical durability for regular outdoor use.\u003c\/p\u003e","brand":"Pentax","offers":[{"title":"Default Title","offer_id":48190246584539,"sku":"B00SKO4AUY","price":148.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51CjwyZMUvL._AC_SL1000.jpg?v=1769615985","url":"https:\/\/gearmusthave.com\/products\/pentax-8-5x21-u-series-papilio-ii-binocular-close-focus-clarity","provider":"GearMustHave","version":"1.0","type":"link"}