{"product_id":"lumaspec-ls-tcl-2250","title":"0.5x, WD 220 mm, 1.1\", C-mount telecentric lens, length 202.5 mm (LS-TCL-2250)","description":"\u003cp\u003eLS-TCL-2250, the 220 mm-WD, 1.1\"-format, 202 mm-long version, offers 0.5x magnification, one of the higher magnifications in the series, between the 0.46x version and the 0.55x version (an object field of about 36 mm across on an 18 mm sensor).\u003c\/p\u003e\u003cp\u003eLS-TCL-2250: magnification 0.5x, working distance 220 mm, NA 0.03564, theoretical depth of field ±1.1@F7, total length TTL 202.5 mm.\u003c\/p\u003e\u003cp\u003eAt a glance: max sensor size 18.0 mm (1.1\"); object-side resolution 9.4 µm.\u003c\/p\u003e\u003cp\u003eWith rays within 0.02° of parallel on the object side, a 1 mm height step moves an edge in the image by at most about 0.35 µm (tan 0.02° x 1 mm), so parts at different heights measure the same. It holds 30 % contrast up to 140 lp\/mm on the sensor, which suits cameras with pixels of about 3.6 µm or larger (one line pair across two pixels). An M57 x 0.5 filter thread takes a polarizer, band-pass or protective window.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e0.5x magnification (220 mm-WD, 1.1\"-format, 202 mm-long), one of the higher magnifications in the series\u003c\/li\u003e\n\u003cli\u003eCovers sensors up to 1.1\" (18 mm diagonal) without dark corners; a larger sensor would vignette\u003c\/li\u003e\n\u003cli\u003e0.05 % distortion: a corner point of the 36 mm field lands within about 9 µm of its true place\u003c\/li\u003e\n\u003cli\u003eTelecentricity under 0.02°: a 1 mm change in part height moves an edge by under about 0.35 µm\u003c\/li\u003e\n\u003cli\u003eSeparates details about 9.4 µm apart on the part: about 3,000 across the 28.2 mm wide field\u003c\/li\u003e\n\u003cli\u003eNumerical aperture 0.03564\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-TCL-2250\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\u003eMagnification (x)\u003c\/th\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking distance (mm)\u003c\/th\u003e\n\u003ctd\u003e220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor format\u003c\/th\u003e\n\u003ctd\u003e1.1\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax sensor size (dia. mm)\u003c\/th\u003e\n\u003ctd\u003e18.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side F\/#\u003c\/th\u003e\n\u003ctd\u003e7 to closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side MTF30 (lp\/mm)\u003c\/th\u003e\n\u003ctd\u003e\u0026gt;140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTheoretical depth of field (mm)\u003c\/th\u003e\n\u003ctd\u003e±1.1@F7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eObject-side resolution (um)\u003c\/th\u003e\n\u003ctd\u003e9.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumerical aperture NA\u003c\/th\u003e\n\u003ctd\u003e0.03564\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImage-side distortion (% max)\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eObject-side telecentricity (deg max)\u003c\/th\u003e\n\u003ctd\u003e\u0026lt;0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal length TTL (mm)\u003c\/th\u003e\n\u003ctd\u003e202.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoaxial illumination\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront filter thread\u003c\/th\u003e\n\u003ctd\u003eM57x0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping weight (estimated)\u003c\/th\u003e\n\u003ctd\u003e0.90 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":53080048140570,"sku":"LS-TCL-2250","price":1629.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/5434\/7546\/files\/ls-tcl-2250-drawing-1.webp?v=1792789729","url":"https:\/\/lumaspecvision.com\/products\/lumaspec-ls-tcl-2250","provider":"LumaSpec Vision","version":"1.0","type":"link"}