Nakuba izingxenye eziningi zekhamera yedijithali zibalulekile, i-lensi ingase ibaluleke kakhulu. Ngaphandle kwekhwalithi yekhwalithi, izithombe zakho azikho ithuba lokukhalipha nokukhanya. Noma kunjalo kungaba nzima ukucacisa umehluko oqondile phakathi kwama-lens ngaphandle kokwazi ezinye zegama lamagama ekhamera ngokukhethekile ngamalensi. Kungaba ukudideka okuncane ukuqonda amanye amagama asetshenziswa kakhulu ngama-lens.
Uma uthengela ikhamera, qiniseka ukuthi ukhetha uhlobo lensimbi oluzosebenza kahle ngesimo sakho ngokufunda igama elibaluleke kunazo zonke lekhamera yamagama ekhamera.
- Sondeza. Abanye abathwebuli bezithombe babheke ukusondeza njengokukhuliswa kwesithombe, okuvumela umthwebuli wezithombe ukudubula isithombe "sokuvala" ngaphandle kokuthi asondele eduze nendaba. Noma kunjalo, incazelo yangempela yokusondeza yikhono lensuku lokudubula kumakamelo amaningi okugxila. Ngamanye amazwi, i-zoom lens ingadla i-angle engaphezulu yokudubula noma i-telephoto shot noma kokubili. Akuwona wonke amalensi anikeza ikhono lokwengeza.
- Ukusondeza okubonakalayo. Ukusondeza okubonakalayo kuyinkohlakalo yokushintsha ubude obugxile be-lens besebenzisa i-hardware ngaphakathi kwe-lens ukuze ushintshe ubude obugxile. Ukusondeza okubonakalayo kuyindlela ekhethiwe yokusondeza, njengoba ayithinti kabi ubuciko besithombe ngenxa yokuthembela kwi-hardware ku-lens ukwenza izinguquko. Ukusondeza okubonakalayo kuyisici esitholakala ngamakhamera ahleliwe lens, kunama-DSLRs.
- Ukulondeza kwedivayisi. Ukusondeza kwe-Digital uhlobo lokusondeza lapho isofthiwe ngaphakathi kwekhamera ishintsha ubude obugxile ngokumane ukhulise isithombe. Ngenxa yokuthi ukusondeza kwe-digital kuhilela ukwandisa ubukhulu bamaphikseli, ukusondeza kwedijithali ngezinye izikhathi kungathinta kakhulu ukubukeka kwesithombe. Uma uthenga ikhamera, ungagxila ekuzwakaliseni kwedijithali, njengoba abathwebuli bezithombe abaningi bangaphindaphinda izici eziningi zesondlo se-digital ne-software yokuthumela ngemuva. Naka inombolo ye-optical zoom kunalokho.
- Amalensi aguquguqukayo. Ama-high-end, amakhamera we-DSLR, namakhamera angenakubukwa angasebenzisa amalensi aguquguqukayo, lapho amalensi ahlukene ahlinzeka ngamakhono ahlukile. Ngama-lens amaningi e- DSLR angashintshayo kanye nama-lens amakhamera angenasipiliyoni, ukuqiniswa kwesithombe kwakhiwe ngaphakathi kwendwangu, ukukhazamisa ukhamera kwekhamera nokuthuthukisa ikhwalithi yesithombe.
- Ubude obugxile. Ubude obubalulekile ukulinganisa ibanga ukusuka emkhatsini we-lens kuya endaweni eqondile (okuyiyona inzwa yesithombe ekhamera yedijithali). Amalensi amaningi ekhamera yedijithali abonisa ibanga lensiza ngesilinganiso sobude obugxile, njengama-25mm-125mm. Isilinganiso sobude obude kakhulu sinquma ngokunembile amakhono we-telephoto ne-wide angle of lens kune-zoom optical measurement, okuyinto nje inombolo ebonisa umehluko phakathi kwe-angle ebanzi kanye ne-telephoto isilinganiso. Esikhathini esingenhla se-25mm-125mm, sasizoba nesilinganiso se-zoom ye-5X.
- I-LCD. I-crystal display display (LCD) ngemuva kwekhamera yedijithali ingasetshenziselwa ukuhlela isithombe, njengesibukeli. Kodwa-ke, khumbula ukuthi i-LCD ayidabuli ama-100% wesithombe ukuthi ikhamera izodubula. Ukufakwa kwe- LCD ngezinye izikhathi kungaba ngu-95% noma ngaphezulu, kanti iphesenti ngezinye izikhathi kubhalwe ngokucacile kwekhamera. Ngokuvamile kufana ngokulingana nombono ngokusebenzisa i-lens, kodwa ayihambisani ncamashi.
- Isibukeli sokubuka. I-viewfinder yokuvula inikeza ukubuka kuqala okungekho okuthuthukisiwe, okungewona okwesibonakaliso kwesithombe umthwebuli wezithombe oseduze ukudubula. Ngama-low-end, iphuzu nokudubula amakhamera, i-viewfinder ye-optical ayibophekile ku-lens optics - esikhundleni salokho, kuvame ukuba ngaphezu kwe-lens - okusho ukuthi ngeke ihambisane ncamashi nomfanekiso i-lens izodubula. Ama-high-end, ama-cameras e-DSLR afaka isibuko sokubukela ku-optical lens, ehlinzeka ngokubuka kuqala kwesithombe esilandelayo.
- Isibukeli se-elekthronikhi (EVF). I-EVF ekhamera yedijithali i-LCD encane eyenza umthwebuli wezithombe ithuba lokuhlela isithombe. I-EVF iyimifanekiso ye-digital yesithombe. Ngokulingisa umbono ngokusebenzisa i-lens yesithombe sokugcina, i-EVF ihambisana ncamashi ngokunemba kweLCD.