div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentspo-incsecure-site-2019-9-17-spo-inc-o-glossary-working-distance-wd-workinghtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: SPO IncSecure Site · 2019 9 17 · SPO Inc: O Glossary Working Distance WD Working distance is the distance from the front of optical lens to the surface of the specimen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer2022060717607d1db8d5ee003917658c09html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentspo-incsecure-site-2019-9-17-spo-inc-o-glossary-working-distance-wd-workinghtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: SPO IncSecure Site · 2019 9 17 · SPO Inc: O Glossary Working Distance WD Working distance is the distance from the front of optical lens to the surface of the specimen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer2022060717607d1db8d5ee003917658c09html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentspo-incsecure-site-2019-9-17-spo-inc-o-glossary-working-distance-wd-workinghtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: SPO IncSecure Site · 2019 9 17 · SPO Inc: O Glossary Working Distance WD Working distance is the distance from the front of optical lens to the surface of the specimen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...