I-Sigma yethule ilensi yayo yokuqala engu-120-300mm f / 2.8

Ngokuvumelana ne Sigma, i-120-300mm f / 2.8 DG OS HSM super-telephoto zoom lens iyinhlangano yayo yokuqala yezinsimbi zemidlalo ezishintshile futhi eletha ukuvuleka okuphezulu njalo ngasikhathi sinye. Ngaphezu kwalokho, i-firmware yayo i-customizable yomsebenzisi nge-USB Dock.

The njalo f / 2.8 ukuvula kuhumusha ngejubane le-shutter esheshayo, ngaleyo ndlela kutholwe kangcono izinto ezihamba ngokushesha, kunoma ibuphi ubude obugxile. USigma wakha ilensi entsha ukuletha ukusebenza kwe-optical kanye nokuzivumelanisa nezimo. Ukuvulwa okusheshayo kuzotholakala kulo lonke uhla lokusondeza, ngakho-ke abathwebuli bezemidlalo nakanjani bazowuthokozela lo mqondo.

Ngaphandle kwe 120-300mm ubude obugxile, ibuye imemezele ukuthi kungenzeka ukuthi isethwe nge-software enikeziwe. Kuthatha ukusetshenziswa kwe- "IDOKI LE-USB”Ubuchwepheshe. Ngokusebenzisa isoftware ekhethekile (I-Sigma Optimization Pro), umthwebuli zithombe uyakwazi shintsha i-firmware yelensi izilungiselelo zokwenza ngokwezifiso kangcono. Lokhu kusho ukuthi iSigma 120-300mm f / 2.8 DG OS HSM ingaba njalo ivumelaniswe nezidingo zomthwebuli wezithombe.

Ilensi yeSigma 120-300mm f / 2.8 DG OS HSM iyimodeli yokuqala yenkampani entsha yezemidlalo yezemidlalo.

Ilensi ifaka izinto ezimbili zengilazi ze-FLD ("F" Low Disersion) eziletha ukusebenza okulingana ne-fluorite. Enye into yengilazi ye-SLD (Special Low Disersion) inxephezela ukuphambuka kombala okungenzeka. Inokusondeza kwangaphakathi nokugxila, ngakho-ke i-lens ayilokothi ishintshe usayizi wayo futhi i-lens lens engaphambili ayizungezi. Noma yiluphi uhlobo lokuhlunga lunganamathiselwa kulo, ngoba ingxenye engaphambili yelensi ilungisiwe.

I-Sigma 120-300mm f / 2.8 DG OS HSM yakhelwe ukuthi iqine, inikeze uthuli-ubufakazi futhi fafaza ubufakazi izingxenye nomaphi lapho kukhona amalunga, njengokunamathiselwe kwentaba, iringi yesandla, indandatho yokusondeza, noma amaswishi.

Ngenxa yayo HSM (Hyper Sonic Motor) ukuhlanganiswa, ilensi iyaletha ijubane eliphezulu, Uthule futhi i-AF enembile (Ukugxila Okuzenzakalelayo). Okunye ukucaciswa okuhle yizinhlamvu zayo eziyisishiyagalolunye i-diaphragm eyindilinga noma kwakwenziwa ngethusi ukukhwela kwebhethri.

Le lens yokusondeza nge-super-telephoto iphethe igama le-DG, okusho ukuthi ingakwazi ukumboza izinzwa zesithombe esigcwele. Noma kunjalo, izohambisana namanye ama-APS-C DSLRs futhi izonikeza ubude obuyi-35mm obulingana no-180-450mm.

I-Sigma 120-300mm f / 2.8 DG OS HSM iyatholakala ngentengo yoku-oda ngaphambili kwe- $ 3,599 yamakhamera we-Canon, Sigma, ne-Nikon DSLR.