Ua hoʻolaha ʻo Sigma 18-35mm f / 1.8 DC HSM Art lens no nā APL-C DSLR

Ua hoʻolaha ʻo Sigma i nā aniani 18-35mm f / 1.8 DC HSM Art, i kuhikuhi ʻia i nā kāmela APS-C DSLR.

Ua kāhāhā ʻo Sigma i ka honua holoʻokoʻa me ka hoʻolaha o ka maka aniani mua loa e hāʻawi nei i ka puka mau o f / 1.8. Ua wehewehe ka hui iā ia ma ke ʻano he nui o nā pilikia ma muli o nā palena i kau ʻia e nā kānāwai o ka physics.

ʻO Sigma 18-35mm F1.8 DC HSM Art ke aniani i lilo i maka aniani mua o ka honua me kahi puka mau o f / 1.8

He mea kupaianaha ke ʻano o ka aniani Sigma 18-35mm F1.8 DC HSM Art, e hōʻike ana i ke kumu e pono ai ka hoʻokūkū ikaika i ka honua o nā kāmele uila. ʻO kēia ka maka aniani mua e hiki ai ke mālama i ka puka like wikiwiki i ke ala holoʻokoʻa.

Kāhea ka mea hana Iapana iā ia he optic revolusioner no nā kāmela APS-C DSLR me nā aniani kaulike. Hāʻawi ia i kahi 35mm like o 27-52.5mm me kahi puka paʻa o f / 1.8, a he mea mahalo loa ia, no ka mea ʻo ka hapa nui o nā aniani Canon a me Nikon e hāʻawi i kahi puka o f / 2.8.

Hoʻokumu ka haohao ʻenehana o Sigma i ka hoʻohana ma mua o ka maneuverability

E like me nā aniani Sigma āpau, "kēia ʻenehana holomua" e hana wale ʻia ma Iapana wale nō, wahi a ka Pelekikena o Sigma America, ʻo Mark Amir-Hamzeh. ʻO ka ʻike o ka hui me nā aniani ākea i kōkua i nā ʻenekini e hoʻomohala i kahi aniani Kūlana Haʻahaʻa Haʻahaʻa, i hoʻolālā ʻia e hōʻemi i nā kīnā opua, e like me ka cheratic aberration.

I mea e hoʻokō ai i kahi puka wikiwiki, ua hoʻokau ʻia ʻo Sigma e hana i nā mea kuikahi. ʻO ka 18-35mm F1.8 DC HSM Art optic he mea kaumaha a nui hoʻi ia no kāna mahele, no ka mea he 1.79 paona kona kaumaha a ana iā 4.76-ʻīniha i ka lōʻihi. Aia ke anawaena o ke anawaena ma 3.07-inch, ʻoiai ke ʻano o kāna pae kānana ma 2.83-ʻīniha.

Hana ʻia ka aniani Sigma 18-35mm F1.8 DC HSM Art mai nā mea 17 i māhele ʻia i nā hui he 12, me ʻelima mau aniani Super Low Dispersion a me nā mea aspherical ʻehā. Hoʻohui ʻia, pili ia i kahi diaphragm aperture aperture 9 a me ke kākoʻo iā Canon EF, Nikon DX, a me nā kau mauna ʻo Sigma SA.

ʻAʻohe kiʻi paʻa kiʻi, akā hāʻawi ka Hyper Sonic Motor i ke autofocus ʻoi aku ka maikaʻi

Hana ʻia ka barela maka aniani hoʻohui ʻia mai nā meahana Thermally Stable Composite, i ʻoi aku ka maikaʻi ma mua o ka plastic.

ʻO nā aniani kilokilo f / 1.8 o Sigma e hōʻike ana i ka hoʻololi AF / MF a me kahi motika hypersonic i hoʻomaikaʻi ʻia, kahi e hōʻoia ai i ka autofocus mālie a wikiwiki hoʻi. Eia hou, ʻōlelo ka ʻoihana hiki i ka maka aniani ke nānā mai kahi mamao o 11.02-ʻīniha a ʻo kāna puka liʻiliʻi loa he f / 16.

Eia nō naʻe, aia kekahi ma lalo e hiki ke hoʻopili i kekahi mau mea paʻi kiʻi: ʻaʻole hoʻohana ka maka aniani i kekahi ʻano ʻenehana hoʻonā kiʻi.

ʻO ka lā hoʻokuʻu a me ka ʻike kumukūʻai e kali nei e hoʻoholo

ʻO ka Sigma 18-35mm F1.8 DC HSM Art lā hoʻokuʻu, ke kumu kūʻai, a me ka ʻike loaʻa hiki ʻole ke ʻike ʻia no kēia manawa. E hōʻike koke ʻia nā kikoʻī hou aku.

Ua hōʻoia ka ʻoihana e kūlike ana kona pae maka aniani USB me kēia optic hou, e ʻae nei i nā mea paʻi kiʻi e hoʻohou i ka firmware a hoʻonohonoho pono i nā hoʻonohonoho like ʻole.