Lensi yo kwibanda ku kintu kidahinduka ni iki?

Nk'uko izina ribigaragaza,indorerwamo y'inyuma ihamyeni ubwoko bwa lensi yo gufotora ifite uburebure buhamye, budashobora guhindurwa kandi bujyanye na lensi yo gufotora.

Mu buryo busanzwe, lenzi zifata amashusho zihamye ziba zifite umwanya munini kandi zifite ubwiza bwo hejuru bw'amatara, bigatuma ziba zikwiriye gufotorwa neza.

Itandukaniro riri hagati y'ama-lenses ahamye n'ama-lenses yo gukurura ibintu (zoom lenses)

Lens zoom na focus lens ni ubwoko bubiri busanzwe bwa kamera, kandi itandukaniro ryazo rikomeye ni uko uburebure bwa focal bushobora guhindurwa. Zifite inyungu zazo iyo zikoreshejwe mu buryo butandukanye.

Urugero, lenzi ifite ubushobozi bwo gupima amashusho ikwiriye gukoreshwa mu gihe hari urumuri ruhagije, hakenewe amashusho meza, kandi hagafatwa amashusho mu buryo buhamye, mu gihe lenzi ifite ubushobozi bwo gupima amashusho ikwiriye cyane mu bice bisaba ko umuntu akoresha uburyo bwo gupima amashusho mu buryo bworoshye, nko gufotora imikino.

Ikirahuri cy'ifatizo gihamye

Uburebure bw'ifatizo

Uburebure bw'icyerekezo cya lens ihamye buhamye, nka mm 50, mm 85, nibindi, kandi ntibushobora guhindurwa. Lens yo gupima irashobora guhindura uburebure bw'icyerekezo izunguruka cyangwa isunika inakurura umunwa w'icyerekezo, bigatuma habaho guhitamo hagati y'inguni nini na telephoto.

Oimikorere ya ptike

Muri rusange,indorerwamo y'inyuma ihamyeifite ubwiza bw'amatara kurusha lenzi yo koroshya amashusho kuko imiterere yayo yoroshye kandi ntisaba kwitabwaho ku bijyanye n'ingendo z'ikirahure cyangwa imiterere igoye y'amatara. Mu buryo busanzwe, lenzi zoroshye zifite umwanya munini (zifite agaciro ka F), zishobora gutanga ireme ry'ishusho, urumuri rwinshi, ndetse n'ingaruka nziza zo kugabanya ishusho inyuma.

Ariko ubu hamwe n’iterambere ry’ikoranabuhanga, zimwe muri zoom lenses zo mu rwego rwo hejuru zishobora no kugera ku rwego rwa fixed focus lenses mu bijyanye n’imikorere y’amatara.

Uburemere n'ingano

Imiterere ya lensi ifata amashusho mu buryo butaziguye ni yoroshye, muri rusange ni nto kandi yoroheje mu bunini. Imiterere ya lensi ifata amashusho mu buryo butaziguye ni igoye cyane, igizwe n'amabara menshi, bityo akenshi iba iremereye kandi nini, ibyo bishobora kugora abafotozi kuyikoresha.

Uburyo bwo kurasa

Ilensi yo kwibandaho idahindukas zikwiriye gufata amashusho cyangwa ibintu runaka, kuko uburebure bw'ifatizo budashobora guhindurwa, kandi amabara akwiye agomba gutoranywa hashingiwe ku ntera yo gufata amashusho.

Ikirahuri cyo gufata amashusho (zoom lens) cyoroshye cyane kandi gishobora guhindura uburebure bw'umurongo ureba inyuma bitewe n'ibikenewe mu gufata amashusho kidahinduye aho gifatira amashusho. Kirakwiriye ahantu hasaba impinduka mu ntera n'inguni byo gufata amashusho.