Flat field inotarisa girazi, inozivikanwawo segirazi remumunda uye f-theta inotarisisa girazi, inyanzvi lens system, ine chinangwa chekugadzira nzvimbo yakatarisana neyunifomu mundege yese yekumaka ine laser beam. Icho chimwe chezvakakosha zvekushandisa zve laser yekumaka muchina.