I-CES 2014: I-lens yobuciko be-Sigma 50mm f / 1.4 DG HSM manje isemthethweni

I-Sigma yethule amalensi amabili amasha, i-50mm f / 1.4 DG HSM Art ne-18-200mm f / 3.5-6.3 DC Macro OS HSM Contemporary, kwi-Consumer Electronics Show 2014.

Awekho amalensi amaningi kakhulu avezwe eLas Vegas, eNevada komunye wemicimbi emikhulu ehlobene nobuchwepheshe yonyaka. Ngokujabulisayo, i-CES 2014 ayivalanga iminyango yayo, kepha izimemezelo ziyaqhubeka nokuza.

USigma ugxume kule bandwagon futhi iveze ama-optics ambalwa kubathwebuli bezithombe emhlabeni jikelele. Enye yazo yenzelwe amakhamera ohlaka agcwele, kepha kufanele isebenze kumamodeli we-APS-C, futhi, kanti enye ibhekiswe kubadubuli be-APS-C kuphela.

I-Sigma imemezela ilensi yobuciko ye-50mm f / 1.4 DG HSM ngokuklanywa kwangaphakathi okuthuthukisiwe nefomula ye-optical

I-Sigma 50mm f / 1.4 DG HSM Art lens ihloselwe amakhamera ohlaka oluphelele, kepha izosebenza namamodeli we-APS-C.

Inhlangano esekwe eJapan ikwazile ukumangaza ama-lens kulo nyaka ka-2013, ikakhulukazi ngenxa isibuko se-18-35mm f / 1.8 DC HSM. Manje yisikhathi esifanele sokunyusa umdlalo waso ngosizo lwelensi yobuciko beSigma 50mm f / 1.4 DG HSM.

Lo mkhiqizo ungene esikhundleni semodeli esesekhona kubasebenzisi. Kodwa-ke, i-50mm f / 1.4 EX DG HSM yamanje isuselwa kumklamo “wakudala”, kuyilapho entsha yezemidlalo i-13 element ihlukaniswe yaba ngamaqembu ayi-8 ene-diaphragm eyindilinga engama-9.

Le nguqulo entsha iza nezinto zengilazi ze-SLD (Special Low Disersion) ezilapha ukunciphisa ukuguquguquka kwe-chromatic. Izakhi ze-aspherical kanye nokumbozwa nakho kunciphisa ukuhlanekezela, ukuphefumula, ukuvutha, nezinye iziphambeko ezibonakalayo ezingabonakala esithombeni.

I-Sigma 50mm f / 1.4 DG HSM Art lens ezokhishelwa amakhamera we-Canon, Sigma, Sony, ne-Nikon

IHyper Sonic Motor ye-50mm f / 1.4 DG HSM Art entsha inikeza i-autofocus ethule nebushelelezi. Ukuze unikeze ezinye izici ngokuzayo, i-optic iyahambisana ne-Sigma USB Dock ethandwayo.

Ngaphambi kokubuyekeza i-firmware yomkhiqizo, umenzi uthi abathwebuli bezithombe bangajabulela i-bokeh emangalisayo ekhishwe ilensi. Kodwa-ke, usuku lwayo lokukhishwa nentengo yalo akwaziwa.

Ilensi ilinganisa ama-3.35-inches ububanzi ne-3.94-inches ubude, kanti intambo yayo yesihlungi imi kuma-77mm. Isisindo esiphelele singama-1.04 lbs, yize kungahluka ngokuya ngentaba.

Uma sikhuluma ngakho, le optic prime iyahambisana neCamera, Sigma, Sony, ne-Nikon full camera cameras, yize izosebenza namamodeli we-APS-C.

I-Sigma yethula ilensi entsha ye-Contemporary: 18-200mm f / 3.5-6.3 DC Macro OS HSM yama-APS-C DSLRs

Ilensi yeSigma 18-200mm f / 3.5-6.3 DC Macro OS HSM izotholakala maduze ngamakhamera we-APS-C avela eCanon, Nikon, Sigma, Pentax, naseSony ane-35mm elingana no-27-300mm.

Ilensi yesibili kaSigma yi-18-200mm f / 3.5-6.3 DC Macro OS HSM, njengoba kushiwo ngenhla. Iyingxenye yochungechunge lweContemporary futhi iyahambisana namakhamera we-APS-C avela kuNikon, Canon, Sigma, Sony, nePentax.

Iza nobuchwepheshe be-Optical Stabilizer obuqinisekisa ukuthi izifundo aziveli kufiphele, okuyisici esamukelwa ngaphezu kokutholwa, ikakhulukazi ezithombeni ezinkulu. Kodwa-ke, amamodeli akwaSony nePentax ngeke abe nohlelo lwe-OS, ngoba iningi lala makhamera selivele linobuchwepheshe obunjalo obakhelwe ngaphakathi.

I-Sigma 18-200mm f / 3.5-6.3 DC Macro OS HSM ingena esikhundleni semodeli eyethulwe emuva ngo-2011. Le nguqulo entsha ifaka izinto eziyi-16 emaqenjini ayi-13 anezingilazi ze-SLD (Special Low Disersion).

I-Sigma 18-200mm f / 3.5-6.3 DC Macro OS HSM Ubukhulu belensi yesikhashana nolwazi oluthe xaxa

Ilensi ilinganisa u-2.8-inches ububanzi, 3.4-inches ngobude futhi inentambo yokuhlunga engu-62mm. Ikhanya kancane kunelensi engu-50mm f / 1.4 ngaphandle kobude bayo obugxile njengoba inesisindo esingu-0.95 lbs kuphela.

Ibanga lokugxila ubuncane ngamasentimitha ayi-15.35-intshi / 39 amasentimitha futhi ukuvula okuncane kume ku- f / 22.

Lapho itholakala, kufanele inikeze ngokulingana okungu-35mm okuyi-27-300mm. UJut njengomlingani wayo ongu-50mm, usuku lwayo lokukhishwa nentengo azange kudalulwe.