Ilensi yobuciko yeSigma 20mm f / 1.4 DG HSM iba semthethweni

I-Sigma imemezele ilensi yokuqala engama-20mm ebanzi ebanzi emhlabeni enokuvula okuphezulu kwe-f / 1.4. Njengoba isigcwagcwa sabikezela, i-20mm f / 1.4 DG HSM prime izokwengezwa ochungechungeni lwezobuciko obuphezulu ngasekupheleni kwalo nyaka.

Cishe maphakathi no-2015, uSigma wembula Ubuciko be-24-35mm f / 2 DG HSM futhi wathi abathwebuli bezithombe kufanele balindele okuhle okuningi ngokuzayo. Abangaphakathi babike ukuthi okungenani i-optic entsha ezoba semthethweni kulokhu kuwa futhi nakhu: i-20mm f / 1.4 DG HSM Art.

Njengenjwayelo, akumangazi ukuthi umkhiqizo weSigma ungumbukiso wokuqala womkhakha wezithombe zedijithali. Ilensi yobuciko engu-20mm f / 1.4 DG HSM esanda kuvezwa iyinhlangano yokuqala yomhlaba ebanzi ebanzi yamakhamera anefreyimu ephelele ukufaka ukuvuleka okuphezulu kwe-f / 1.4, okuzoba wusizo ezimweni ezikhanya kancane.

I-Sigma 20mm f / 1.4 DG HSM Art lens iba yi-20mm optic yokuqala yomhlaba ngokuvula kwe-f / 1.4

Amakhamera edijithali anama-megapixel amaningi. Ukuze basebenzise amandla abo aphelele, abenzi bamalensi kumele banikeze ngokukhanya okuphezulu kakhulu, futhi. Inkampani ehlala iletha njalo iSigma futhi ukwakhiwa kwayo kwakamuva yi-20mm f / 1.4 DG HSM Art.

Umkhiqizi waseJapan kuye kwadingeka aqhamuke nokuthile okufana nezidingo zabasebenzisi, ngakho-ke nayi ilensi yokuqala egcwele yohlaka emhlabeni enobude obugxile obungu-20mm kanye nokuvulwa okuphezulu okukhanyayo njenge-f / 1.4

Ilensi yobuciko ye-Sigma 20mm f / 1.4 DG HSM izolungela ukudubula okukhanya okuphansi ngenxa yokuvuleka kwayo okuphezulu.

Ngokusho kokukhishwa kwabezindaba, i-Sigma 20mm f / 1.4 DG HSM Art lens iletha ikhwalithi ephezulu yesithombe uma kukhulunywa ngamasimu, izithombe zasendlini, isibhakabhaka esinezinkanyezi nemidwebo.

Lo mkhiqizo wenziwe ngenhloso yokuthwebula izithombe ezingenakho ukuhlanekezelwa, ngenxa yezakhi zengilazi ze-aspherical, nokunciphisa ukuphoqa kanye nokuvutha, ngokuzithoba kweSuper Multi-Layer Coating.

Abasebenzisi beCanon, uNikon, nabakwaSigma DSLR ukuthola izandla zabo kulo mkhiqizo kulo nyaka

I-lens ye-Sigma 20mm f / 1.4 DG HSM yobuciko isuselwe kudizayini enezinto eziyi-15 emaqenjini ayi-11. Ukucushwa kwangaphakathi kufaka phakathi i-F Low Dispersion (FLD) kanye nezinto ezikhethekile ze-Special Low Disperion (SLD) kanye nokuvula okuyizindilinga kwe-9-blade.

Amashadi we-MTF we-Sigma 20mm f / 1.4 DG HSM Art lens.

Umkhiqizo usebenzisa iHyper Sonic Motor okuthiwa ihlinzeka ngokuzenzakalela okusheshayo, buthule, futhi okushelelayo. Iza igcwele umphongolo owenziwe nge-Thermally Stable Composite, ngakho-ke iyi-optic ehlala isikhathi eside, njengazo zonke izingane zakwabo ezikuchungechunge.

Iringi yokugxila mathupha iyatholakala kulensi eceleni kwesilinganiso sebanga labathwebuli bezithombe abakhetha ukugxila njengasezinsukwini zakudala. I-optic inesisindo esingu-950 amagremu / ama-ounces angama-33.5, ngenkathi ilinganisa u-90.7mm ubukhulu no-129.8mm ubude.

Kuqinisekisiwe ukuthi ilensi yobuciko ye-Sigma 20mm f / 1.4 DG HSM Art izotholakala kusukela ngoNovemba ngamakhamera we-Canon, Nikon, ne-Sigma full-frame ngentengo ka- $ 899.