Hōʻike ʻia ʻo Nikon 24-70mm f / 2.8 PF VR maka aniani

Ua kālele ʻo Nikon i kahi aniani hou 24-70mm f / 2.8 no nā kāmela DSLR kino piha, ʻokoʻa ia mai nā hiʻohiʻona e kū nei me ka mea i piha me kahi mea Phase Fresnel.

Kaulana ʻo Canon no ka hana ʻana i nā aniani me ka ʻenehana Diffractive Optics. Ke hoʻohana nei ka hui ʻo Iapana i kahi mea DO i kekahi o kāna optics i mea e hōʻemi ai i ka nui a me ke kaumaha o nā aniani, ʻoiai e hoʻonui ana i ke ʻano o ke kiʻi. Eia nō naʻe, pipiʻi kēlā ʻano ʻenehana, no laila ke hoʻohana ʻia ia i kekahi mau aniani.

I ka makahiki 2015, Ua hoʻoholo ʻo Nikon e hāhai i ke alakaʻi a Canon ma ka hoʻolauna ʻana i kahi aniani e lawe ana i kāna mana ponoʻī o ka ʻenehana DO. Kāhea ʻia ia ʻo Phase Fresnel a loaʻa ia i ka maka aniani tel-kiʻi nui AF-S Nikkor 300mm f / 4E PF ED VR, ke kumukūʻai ma kahi o $ 2,000.

Me he mea lā ke hoʻolālā nei ʻo Nikon e lawe hou mai i nā optic Phase Fresnel i ka mākeke, ʻoiai ua hoʻopili ka ʻoihana i kahi aniani 24-70mm f / 2.8 i piha me ia ʻenehana.

ʻO kēia ka patent no nā aniani Nikon 24-70mm f / 2.8 PF VR, i manaʻo ʻia e loaʻa a hiki i ka hopena o kēia makahiki.

Hōʻike ʻo Nikon 24-70mm f / 2.8 PF VR aniani i ka USPTO

ʻO ka Nikon 24-70mm f / 2.8 PF VR lentent patent ua ʻike ʻia ma ka US Patent and Trademark Office. Ua waiho ʻia ma Mei 2014 a ua hāʻawi ʻia iā Kepakemapa 2014.

Ke wehewehe nei ka palapala noi palapala Sila i kahi aniani kaulike maʻamau me ka puka mau o f / 2.8 ma loko o ka pae hoʻokokoke. Hoʻolālā ʻia ka maka aniani e uhi i nā kiʻina kiʻi piha a hiʻohiʻona ia ʻenehana Vibration Reduction i kūkulu ʻia.

Ma luna o kēlā, hoʻohana ka maka aniani i kahi mea Phase Fresnel, kahi e hōʻemi ai i kona nui a me ke kaumaha i ka wā e hāpai ana i ke ʻano o ke kiʻi, e like me ka mea i ʻōlelo ʻia ma luna.

Hiki iā Nikon ke hoʻokuʻu i kāna aniani ʻelua Fresnel pae i ka hopena o 2015

ʻAʻole manaʻo ʻia kēia k modelkohu e hōʻike i ka mākeke ma mua o ka hopena o 2015. Eia nō naʻe, e kali nō nā mea paʻi kiʻi ʻo Nikon, no ka mea he nui ka poʻe i hiki ke lilo i kēia hiʻohiʻona i ke aniani "pono-loaʻa" mahalo i ka hoʻohui o nā ʻōnaehana VR a me PF ʻelua.

ʻAʻohe o kēia aniani 24-70mm f / 2.8 o kekahi o lākou a loaʻa ia ma kahi o $ 1,700 ma Amazon. ʻO kēia ka mea i ʻoi aku ka pipiʻi o ka mana hou ma mua o ke ana hoʻohālike e kū nei.

Ma waho aʻe o ka 300mm f / 4E PF ED VR i hoʻolaha mua ʻia a me ka 24-70mm f / 2.8 PF VR e hiki mai ana, he palapala kēnā ko Nikon no kekahi aniani Phase Fresnel. ʻO ka 200-400mm f / 4-5.6 i hoʻohālikelike ʻia i ka 2012.

ʻAʻole manaʻo ʻia e hōʻike ʻia kēia maka aniani telephoto zoom ma ke kuai i ka wā e hiki mai ana. Eia nō naʻe, ʻaʻole pono mākou e kau i nā hopena i kēia manawa, no laila e lawe i kēia mau kikoʻī āpau me kahi pine o ka paʻakai.