A12 Qhov chaw kuaj

Kuaj tsom, ua kom siab dua cov koob tshuaj sib txuam, tsim rau kev tshawb fawb hauv chaw kuaj, kev txheeb xyuas txhua hnub, tsev kawm ntawv thiab chaw kawm qib siab. Feem ntau kev sim tau tsim nrog lub hom phiaj phiaj los yog infinity optical system, feem ntau ntawm lawv tuaj yeem hloov kho nrog tag nrho cov kev ua haujlwm txuas, kom pom ntawm qhov chaw tsaus, polarizing, theem tsis sib thooj, fluorescent, DIC, metallurgical.