Ixabiso letheknoloji likhula rhoqo kwaye iindleko zeekhamera kunye nezixhobo zazo ziphezulu, ngoko kubalulekile ukuba ungenzi iimpazamo xa ukhetha. Kukho iingcebiso kunye neemvavanyo ezibalulekileyo malunga nendlela yokujonga ilensi xa uthengwa, ukuze ufumane amahlumela amnandi njengesiphumo.
Utshekishe i-lens
Abantu bahlanganyela kwiifoto, kungekudala okanye kamva bacinge ngokukhetha i-lens entsha . Ukuthenga izixhobo esitolo, umntu unesiqinisekiso sokumnika ithuba, ukuba kuyimfuneko, ukutshintshe okanye ukubuyisela impahla. Ndiyabulela oku awukwazi ukwesaba ukuthenga izixhobo eziphukileyo. Ukuba ukhethe idivaysi esetyenziswayo, kufuneka ukwazi ukujonga i-lens ukuze ungayifumani "ikati kwindawo".
Indlela yokujonga ilensi xa uthengisa kwisitoreji?
Ukuthenga ilensi entsha esitolo, kufuneka uqale ufunde onke amaxwebhu kwaye ngokuqinisekileyo ujonge iwaranti. Kukho iingcebiso ezimbalwa malunga nokuvavanya ilensi entsha xa uthenga:
- Kunconywa ukuba uqale uzifunde ngendlela i-lens okufanele ibuke ngayo, phantsi kweenkcukacha ezincinci, kuba ukuba awukwazi, unganakuboni ukungabikho kwento ebalulekileyo. Thelekisa uluhlu lweenkcukacha ezichazwe kumaphepha kunye nokufumaneka kwamacandelo.
- Hlola iimpawu, izibhenqo, izitshixo kunye neendandatho zokujolisa, ezifanele zijikeleze ngokushelelayo nangokucokisekileyo.
- Ifowuni isebenzisa iilensi, apho umgangatho wemifanekiso kuxhomekeke. Kubalulekile ukuhlola ukuba abanakho ukukhawulwa kunye nemonakalo.
- Enye ingongoma yindlela yokujonga ilensi xa uthengi - ukuba kunokwenzeka, yifake kwikhamera yakho kwaye uthathe amacwecwe ambalwa ukuqikelela ukutsalisa, ukuvula, ukugxilwa ngokuzenzekelayo kunye nokugxininisa kwincwadi kunye nokunye njalo.
Ungajonga njani ilensi xa uthenge ngezandla?
Ngaphambi kokuba unike imali kule ngxenye ebalulekileyo ye- SLR , kuyimfuneko ukwenza isheke, ekubeni ingozi yokukhwabanisa iphakamileyo.
- Ukuhlolisisa i-lens ngaphambi kokuthenga kufuneka kuqale ngokuhlola okubonakalayo. Nika ingqalelo ekhethekileyo kwilensi, usebenzisa i-flashlight. Isibhengezo sangaphandle se-hull sisihlandlo sokubambisana.
- Abantu abaninzi abangathembekanga bazama ukuthengisa izixhobo eziye zaphazamiseka kakhulu, kwaye ukulungiswa akuqinisekisi ukuba umsebenzi wexesha elide. Ukuqinisekisa ukuba i-lens inikezelwa ukulungisa, kuyimfuneko ukuhlola i-screws, engafanele ifakwe. Ukuba i-slots kwi-screws igobile okanye idwengulwe, oko kungabonisa ukulungiswa kweengcali ezingafanelekanga.
- Hlola i-lens mechanics: ujikeleze iindandatho zokucwangcisa, cinezela amaqhosha kunye namaqhosha.
- Isinyathelo esilandelayo kumyalelo, indlela yokujonga kakuhle i-lens xa uthengwa, kuquka ukuvavanya emsebenzini. Namathisela i-lens, kwaye kufuneka imiswe ngokukhawuleza kwikhamera, ngaphandle kokuqhaqhazela. Thatha iibhotshi ezimbalwa zezinto ezikufutshane kunye neyona nto ebonakalayo kwi-"Infinity".
- Hlola ukusebenza kwe-flash, ngoko umxholo okhethiweyo wokudubula kufuneka ukhanyiswe ngokulinganayo nawuphi na umgama. Olu vavanyo lubalulekile kwiilensi ezixelela umgama kwikhamera.
Kukho ezinye iikokisi ezininzi ezijoliswe ekuvavanyeni i-lens kwaye ezibaluleke kakhulu ziboniswe ngezantsi.
Indlela yokuvavanya i-lens kwi-front-focus focus?
Ukuqhuba isheke, imiyalelo elandelayo kufuneka ibonelelwe:
- Vula ikhamera kwaye usethe ixabiso le-ISO aliphezulu kakhulu. Ukuhlolisisa i-lens kumgca wecala lwenziwa kwimodi ye-autofocus. Kusadingeka ukhethe imodi yokudubula, i-M okanye i-A ifanelekile.
- Beka ikhamera kwi-tripod uze ufake itekethi eboniswe ngezantsi kwi-flat surface. Njengombhalo ogqityiweyo, sebenzisa idatha kwi-top target.
- Vula indlela yokujonga kwaye ujonge i-lens kwindawo yecala elijoliswe kuyo. Emva koko, faka i-diaphragm evulekile kwi-kamera.
- Kubalulekile ukulungelelanisa ukutyhila ukwenzela ukuba umfanekiso omnyama okanye omnyama ungaphumi. Gxininisa ekujoliswe kuyo, ujolise kwicandelo ngomnqamlezo. Thatha umfanekiso.
- Kwisinyathelo esilandelayo, setha ixabiso lokupasa eliqhelekileyo, umzekelo, 5.6. Ukuqhuba ukulinganisa kwexabiso leemitha kunye nokugxila kwimimandla eboniswe ngaphambili. Thatha enye ifoto.
- Hlola imifanekiso kwaye ugxininise ukuba yintoni apho iqondiswe khona.
Unokuvavanya njani i-lens ukuze ubukhali?
Kukhona uvavanyo olulula kakhulu oluya kuphunyezwa ekhaya. Kubalulekile ukuxhoma iphephandaba kwindonga kwaye likhanyise kumacala omabili ngezibane.
- Ukuhlolisisa i-lens ngokubukhali kuqala ngokuvula ngokugcwele kokuvula. Gxininisa ikhamera kwiphephandaba kwindlela yokuhamba okanye yokuzenzekelayo.
- Qaphela ukuba indiza ye-matrix (emva kwesixhobo) kufuneka ifane nephephandaba.
- Yenza uvavanyo kuyo yonke ixabiso lokukhupha usebenzisa i-speed shutter speed.
- Ukujonga, kufuneka ukhuphe imifanekiso efunyenweyo kwikhompyutheni yakho kwaye uyibuke kwi-100% yokukhulisa. Phawula indlela ubukhali buyehla ngayo umda, ngokukodwa xa uvula luvulekile ngokupheleleyo. Ukuba ukunciphisa kungaphephekanga, i-lens ibukhali.
Ukujonga njani ukusebenza kwe-lens stabilizer xa uthenga?
Xa kuthengwa ikhamera esele isetyenzisiweyo, kucetyiswa ukuba uhlolisise ukuzinzisa. Ukuba ukwenza oku kwi-static, kufuneka ubeke into etafileni kwaye ugxila kuyo. Kufuneka ukuba uqinisekise ukuba akukho zikhetho zokuzenzekela ngokuzenzekelayo kwiindawo ezahlukileyo. Ukuba unomdla wendlela yokujonga isilondolozi se-lens kwizitshixo, ngoko kufuneka uthathe idilesi ezandleni zakho kwaye uphendule ngelixa uhambisa i-lens kwaye umfanekiso kufuneka ubonakale ngokulibaziseka.
Indlela yokujonga ilenshi ngenombolo yecala?
Ngelishwa, kodwa ukugqwetha kwetheknoloji ngexesha lethu yinto eqhelekileyo. Abasebenzisi abaninzi banomdla kwindlela yokujonga i-lens ngenombolo ye-serial "Nikon" okanye ezinye iikhamera. Ngelishwa, kodwa ukusebenzisa le xabiso enye ayikwazi ukuqinisekiswa "ngokusemthethweni" kwenkqubo, kuba isabelo emva kokuhlanganiswa nangaphambi kokuthengiswa. Isisombululo esisodwa, indlela yokujonga i-lens xa uthengi-ukufumana ikhadi lokuqinisekiswa kwewaranti kunye nehologram.