Njengayo nayiphi na into ikhethiwe

Kanye photographer abo basandula kuqalisa ngaphezulu okanye ngaphantsi ukufunda ukusebenzisa ikhamera, eqalisa ukufuna into ngakumbi. Ukuphucula umgangatho womsebenzi kunye nophuhliso yabo mhlawumbi uya isigqibo ukufumana i yokukhanya ezintsha. Kwangoko phambi kokuba umfoti byi ukuba yeyiphi lens kuba ngcono. Imarike igcwele ezahlukeneyo modeli kumaqondo ezahlukeneyo ixabiso, kodwa ubone njani into oyifunayo?

Kuqala kwinto zonke, yenzani isigqibo ngento ofuna ukudubula. Oku kubaluleke kakhulu njengoko namandla naziphi zalathisi zobugcisa ezininzi lens zobungcali, kodwa azifanelanga zonke iinjongo. Ngoko ke, ngaphambi kokuba isigqibo lens ukukhetha, isigqibo ngokwakho into ofuna kuye.

Masithi ufuna ukudubula close-up izinto. Oku kufuna ngokukhanya ukuba amaxesha amaninzi ukwandisa isifundo, ukudala kweso elihle imvelaphi. Kwaye oku linyathelo ebalulekileyo ekuboniseni i-into ekhethiweyo. Ukuba ilingane imodeli Nikon Nikon AF-S 105 mm f / 2,8, leyo ngenxa uvakalelo yalo phezulu uyakwazi ukwenza imifanekiso ezibukhali kwaye ezikumgangatho ophezulu izinto ezincinane. Ukuba unomdla ukukhetha indlela lens Canon, le analogu iya kuba Canon EF f 24-105mm / 1,4, leyo malunga enye parameters, kodwa akukho Fix.

Xa ukhetha lens , cinga likhanya. Eli candelo ibalulekileyo enombala, kwaye kakhulu kuchaphazela umgangatho umfanekiso. Ukuba kunokwenzeka, zama ukukhetha lens fast, kungakhathaliseki ukuba iinjongo zazo. Uyakwazi lalingekafiki ixesha ukukunceda ngaphandle kwimeko yongxamiseko, kunye ukunika ibhonasi encinane ngohlobo bokeh entle (figure kweso).

Ukugqiba leyo lens ukukhetha, sinikela ingqalelo ubude ebalulekile. Lens evela ngaphantsi kwe 50mm zithathwa ngokubanzi-engile. I ezincinane ubude focal, kokukhona ukufiphala (Bill of layini ezithe tye). imifuziselo ezinjalo zisetyenziselwa komhlaba, panorama le ngaphakathi.

Iimfaniso ubude bamalungelo ezesini ukusuka mm-50 ukuya kuma-80 abantu awunankinga ngokuthatha eni. Ukuba uceba ukuthatha imifanekiso kwigumbi elincinane, akusekho olulungela 50mm yokukhanya. Ukuba unalo ithuba ukushenxa ukusuka model ukuya kumgama elikhulu, kwaye ungakhetha i ilens 80 mm, nto leyo enika iimvakatjhi entle.

Ukuba awuyazi ukuba yintoni na into ekhethiweyo nokudubula silandelelaniswe kakuhle, kufuneka ingqalelo umfuziselo kunye Ubude ebalulekile 100-200 mm. Kwakhona ezifanelekileyo macro-izinto ngokuvumela ukwanda ezininzi.

Kukho lens kunye kujoliswe manual kunye automatic. Ukuba sele ibandakanyeka photo, kwafuneka isigqibo lula ngakumbi kuwe. A makhwelo kungenziwa bacetyiswa ukuba basebenzise ngokukhanya, apho kukho zombini iindidi ekujoliswe.

Enye i technical parameters eziya kunceda ukuba isigqibo lens ukuba akhethe, - phambi komfanekiso somfanekiso. It yenzelwe smoothing kwaye okuthambisa nivuthulule camera. Iluncedo ingakumbi kule iilensi kunye kumgama enkulu focal. Yaye soze nesilima, ukuba ngokudubula ngaphandle enemilenze emithathu.

Emva kokufunda ezi parameters, uyakwazi ukuqhubeka kukhetho lens.