{"product_id":"lumaspec-ls-ffl-0894","title":"4\/3\", C-mount machine vision lens, 0.75x, WD 168 mm, length 220.3 mm (LS-FFL-0894)","description":"\u003cp\u003eLS-FFL-0894, the 4\/3\"-format, 168 mm-WD, 220 mm-long version, brings 0.75x magnification to a lens series with 60 magnifications (an object field of about 30 mm across on a 22.5 mm sensor).\u003c\/p\u003e\u003cp\u003eLS-FFL-0894: sensor format 4\/3\", image-side F\/# 13.5, working distance 168 mm, magnification 0.75x, image-side distortion ≤ 0.2 %.\u003c\/p\u003e\u003cp\u003eAt a glance: max sensor size 22.5 mm (4\/3\"); object-side resolution 12.1 µm.\u003c\/p\u003e\u003cp\u003eIt holds 30 % contrast up to 65 lp\/mm on the sensor, which suits cameras with pixels of about 7.7 µm or larger (one line pair across two pixels). An M25 x 0.5 filter thread takes a polarizer, band-pass or protective window. The lens body is 220.3 mm long and Ø30 mm across.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e0.75x magnification (4\/3\"-format, 168 mm-WD, 220 mm-long), in the upper half of the 60 magnifications\u003c\/li\u003e\n\u003cli\u003e0.2 % distortion: a corner point of the 30 mm field lands within about 30 µm of its true place\u003c\/li\u003e\n\u003cli\u003eCovers sensors up to 4\/3\" (22.5 mm diagonal) without dark corners; a larger sensor would vignette\u003c\/li\u003e\n\u003cli\u003eStays sharp over about 1.9 mm of height: parts must sit within ±0.95 mm of focus\u003c\/li\u003e\n\u003cli\u003eSeparates details about 12.1 µm apart on the part: about 1,900 across the 23.1 mm wide field\u003c\/li\u003e\n\u003cli\u003eImage-side aperture F13.5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eLS-FFL-0894\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnification (x)\u003c\/th\u003e\n\u003ctd\u003e0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking distance (mm)\u003c\/th\u003e\n\u003ctd\u003e168\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor format\u003c\/th\u003e\n\u003ctd\u003e4\/3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax sensor size (dia. mm)\u003c\/th\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side F\/#\u003c\/th\u003e\n\u003ctd\u003e13.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eObject-side telecentricity (deg max)\u003c\/th\u003e\n\u003ctd\u003eNon-telecentric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side distortion (% max)\u003c\/th\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumerical aperture NA\u003c\/th\u003e\n\u003ctd\u003e0.02781\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eObject-side resolution (um)\u003c\/th\u003e\n\u003ctd\u003e12.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTheoretical depth of field (mm)\u003c\/th\u003e\n\u003ctd\u003e1.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side MTF30 (lp\/mm)\u003c\/th\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter diameter O.D (mm)\u003c\/th\u003e\n\u003ctd\u003edia. 30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal length TTL (mm)\u003c\/th\u003e\n\u003ctd\u003e220.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront filter thread\u003c\/th\u003e\n\u003ctd\u003eM25x0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003ctd\u003eC-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping weight (estimated)\u003c\/th\u003e\n\u003ctd\u003e0.52 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003ePhoto shows a representative model of this series; see the specifications for this model.\u003c\/em\u003e\u003c\/p\u003e","brand":"LumaSpec Vision","offers":[{"title":"Default Title","offer_id":53079954719002,"sku":"LS-FFL-0894","price":309.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/5434\/7546\/files\/ls-ffl-0894-drawing-1.webp?v=1792789694","url":"https:\/\/lumaspecvision.com\/products\/lumaspec-ls-ffl-0894","provider":"LumaSpec Vision","version":"1.0","type":"link"}