Credit-Card Size Fresnel Magnifier

Summary About 3X magnification. 0.4mm thick, and exactly the size of a credit card. Comments OK, it's not the largest size or the most spectacular quality, but it will fit into a credit card wallet - get one so that you always have a magnifier when you go out...get some for your friends. Technical Magnification / lens size in mm: About 3X, credit-card-size. Field of view: vertically, 10 to 12 lines; horizontally, about one newspaper column. Lens material: plastic Origin / brand: imported by us from China. Presentation: it comes in its own clear plastic "credit card holder". Further information Everything you need to know about magnifiers and magnification. See information about (and reviews of) loupes (small high-power folding jewellers' magnifiers). See information about (and reviews of) binocular (head-worn) magnifiers- especially the surgeons-type. See a guide to magnifiers for the partially-sighted. See loupes with UV lights. Video (electronic) magnifiers, video magnifiers compared. Products: see pocket microscopes and phone microscopes, click here. With most magnifiers* magnification and working distance are related. Download our Excel sheet, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification. * excluding surgeons-type, digital & phone magnifiers, and microscopes.