Tsanangudzo ye lenzi ye convex
Rumwe rudzi rwelenzi rinoshandiswa muhupenyu hwezuva nezuva i lenzi ine convex. Lenzi ine convex i lenzi yakakora pakati uye yakatetepa kumicheto. Yakatenderera muchimiro uye yakagadzirwa negirazi kana purasitiki, zvichiita kuti ionekwe seyakakura kupfuura yemhepo.
Mhando dzema lenses e convex
Kazhinji, kune mhando nhatu dzema lenzi ane convex, chimiro chayo chakafanana nechakaratidzwa mumufananidzo uri pazasi (side view).
Shandisa
Kana maziso emunhu asingakwanise kuona zvinhu zviri pedyo zvakajeka kana kuti munhu wacho achiona zviri pedyo, anoshandisa... lenzi ine convex kana lenzi inotenderera kana lenzi yakanaka kubatsira pakuona. Magirazi eConvex anoshandiswa mumagirazi kana ma contact lenses kubatsira vanhu vanoona zviri pedyo kuona zvinhu zviri pedyo zvakajeka. Anoshandiswawo se girazi rinokudza kana kuti loupe, yakashandiswa pa chishandiso chekamera, mabhainokura ezvishandiso zvemaziso uye maikorosikopu yemaziso.
Nzvimbo Yekutarisa (F)
Tarisa mufananidzo uri padivi. Mwenje wechiedza unobva kuchinhu chiri kure zvikuru chakadai sezuva wakaenzana nemufananidzo axis huru lenzi. Mumufananidzo, mutsetse webhuruu ndiwo mutsetse mukuru welenzi.
Mwenje wechiedza unorova pamusoro pegirazi uye mwenje wechiedza unodzorwa negirazi. Kudzorwa kwechiedza negirazi kunoteerera mutemo wekusachinja chiedzaMwenje wese unouya unodzoserwa nelenzi kuenda kunzvimbo yekutarisa F2 uye chiedza chemwenje 
Mwenje wechiedza unodzorwa unoungana panzvimbo yepakati, ndosaka ichinzi lenzi ine convex. lenzi inounganaNekuti mwaranzi yese yechiedza inopindirana panzvimbo yepakati F2 ipapo zvinogona kutaurwa kuti nzvimbo yekutarisa F2 inzvimbo ine mumvuri wechinhu chiri kure zvikuru. Kana chiedza chinodzorwa negirazi chichibva kuzuva, mumvuri wezuva uchaonekwa panzvimbo yekutarisa F.2.
Nekuti chiedza chinopfuura nepakati penzvimbo yekutarisa, nzvimbo yekutarisa yelenzi ndeyechokwadi uye mufananidzo wechinhu chiri panzvimbo yekutarisa ndeyechokwadi.
Mvuri
Yakasiyana ne lenzi yakakombama iyo inogona kuumba mifananidzo chaiyo chete, magirazi anobatana anogona kuumba mifananidzo chaiyo uye chaiyo. Mifananidzo chaiyo haipo asi inoita seyavapo nekuti ziso remunhu rinoona chiedza chichifamba mumutsara wakatwasuka saka uropi hwemunhu hunogumisa kuti mufananidzo uripo. Kana skrini yakaiswa panzvimbo inotarisirwa mufananidzo chaiwo, hapana mufananidzo unoonekwa pachiratidziro. Kusiyana neizvi, mufananidzo chaiwo uripo. Kana skrini yakaiswa panzvimbo inotarisirwa mufananidzo chaiwo, mufananidzo unoonekwa kana kuti unoonekwa pachiratidziro. Kuumbwa kwemufananidzo wechinhu negirazi rinobatana kwakatsanangurwa zvakadzama munyaya yacho. mufananidzo wegirazi re convex.
