Amathiphu okusebenzisa i-Telephoto Sondeza i-DSLR Lens

Qonda izinyathelo ze-Zoom ezihambisana ne-Lens ngayinye

Uma wenza inkinobho kusuka endaweni bese udubula amakhamera ukuya ku-DSLRs noma amakhamera angenakushintshashintsha kwamakhamera (i-ILCs), isici esisodwa sekhamera ye-lens engashintshayo engahle idideke iqonda amandla amashayela we-telephoto zoom, nokuthi isebenza kanjani.

Ngenkathi isistimu esetshenziselwa ukukala ububanzi be-telephoto ku-zoom lens yekhamera ye-lens eguquguqukayo ifana nendlela olinganisa ububanzi be-zoom lens endaweni futhi udubule (noma i-lens fixed) ikhamera, kukhona ukungafani endleleni izinombolo zihanjiswa ezingabangela ukudideka okuthile.

Qhubeka ufunda ukuze uthole ukuqonda kangcono ukuthi ungalinganisa kanjani amandla we-telephoto we-lens yakho eguquguqukayo ngokumelene nokuthi kungenzeka ukuthi ube nayo ngekhamera yakho yesikhala esilungisiwe! (I-zoom lens wuhlobo lensi engakwazi ukudubula ngamakhilomitha amaningi okugxila, ngokubhekiselwe kwilensi yokuqala engadubuzela ubude obulodwa kuphela.)

Iguqula uhlu lokusondeza

Ngenkhamera ye-lens ehleliwe, mhlawumbe wayenendandatho yokuzungezile eyayizungeze inkinobho ye-shutter noma inkinobho yokusondeza ngemuva kwekhamera. Cindezela inkinobho yokusondeza ngenye indlela ukuze uthuthukise uhlu lokusondeza ku-setting elula ye-telephoto, bese ucindezela ngenye indlela ukuze udale okuningi kokulungiselelwa kwe-angle enkulu.

Ngomfanekiso we-DSLR noma i-mirrorless ILC, cishe uzoshintsha isilungiselelo sokusondeza ngokuhlanekezela i-zoom yangaphakathi lens ngokwayo. Amakhemikhali ambalwa aphezulu we-DSLR anikezela ukhetho lokusondeza amandla, okuvumela ukuthi usebenzise inkinobho ukuze uthuthukise ukusondeza, kodwa kuxhomeke kohlobo nomkhiqizo we-lens nekhamera owakho.

Isilinganiselo sobubanzi besikhathi eside

Uma uzama ukucacisa ububanzi obude bokubukwa kwe-zoom lens, uvame ukubona ibanga elibalwe njengengxenye yeli lensi. Isibonelo ungabona i-lens enobubanzi obungama-25-200mm ne-DSLR yakho noma imodeli engavumelekile ye-ILC.

Ngephuzu bese udubula ikhamera, ukulinganisa ubude obugxile lens lens kuyafana, kubonisa ububanzi. Noma kunjalo, lolu hlu alufakwe kuhlu njengengxenye yegama lekhamera. Kuzodingeka ubheke ibanga ohlwini lwazo lwekhamera isikhathi esiningi. Abenzi bekhamera ye-lens kuphela abasebenzisi kabanzi lokhu kulinganiswa ezintweni zokuthengisa.

Isilinganiselwa sokulinda okubonakalayo

Ngephuzu bese uphonse ikhamera, isilinganiso esivame ukusetshenziswa kakhulu ukukhombisa ubude obude bokukhanya kwekhamera yokusondeza ikhamera yisilinganiso sokusondeza okubonakalayo. Lesi silinganiso sizophakanyiswa ngokubanzi ezintweni zokuthengisa, futhi ziphinde zifakwe ohlwini. (Ngephuzu bese udubula ikhamera ukulinganisa ububanzi bendawo yobude ngokuvamile kubalwe ngemuva kokulinganisa okubonakalayo kuhlu lwamagama.)

Ukusondeza kwe-optical njalo kubalwe njengenombolo elandelwa yi-X. Ngakho ikhamera ingaba nesilinganiso sokusondeza se-8X.

Lolu hlobo lokulinganisa alufane lubonakaliswe ezintweni zokuthengisa ze-lens eguquguqukayo, nakuba kungenzeka. Ukubala ukusondeza kwe -optical for lens eguquguqukayo nje kwahlukanisa ubude obuningi be-telephoto ubude lapho i-lens ingakwazi ukurekhoda isithombe (njenge-200mm esibonelweni esibalwe ngenhla) ngobude obukhulu kakhulu obude be-lens (25mm kusibonelo esingenhla) . Ngakho-ke ama-200 ahlukaniswe ngu-25 angaphakamisa ukulinganisa kwe-8X.

Ukuthola ibanga elikhulu lokusondeza optical

Ngokuvamile i-lens ekhamera ye-lens ehleliwe izokunika ibanga lokusondeza elingaphambili kunalokho ongayithola nganoma yiliphi ilensi yokusondeza eyenziwe ikhamera ye- lens eguquguqukayo . Ngakho-ke uma une-lens yokukhanya yokukhanya ye-25X ngephuzu lakho bese uphonse ikhamera, ungalindeli ukuphinda uphinde ulinganise kulo lensi yakho eguquguqukayo, ngoba izindleko zingavunyelwe kulolo hlobo lensimbi.