{"meta":{"id":"https:\/\/api.iclient.ifeng.com\/ipadtestdoc?aid=ucms_801VbMe47aI","type":"doc","o":"1","documentId":"ucms_801VbMe47aI"},"body":{"newStatus":"1","documentId":"ucms_801VbMe47aI","staticId":"ucms_801VbMe47aI","title":"微单专属 适马105mm F2.8 Art微距镜头曝光","shareTitle":"微单专属 适马105mm F2.8 Art微距镜头曝光","thumbnail":"http:\/\/d.ifengimg.com\/w150_h106_q100\/x0.ifengimg.com\/ucms\/2020_39\/28D89906C39B0F7200039D7B542BE5A3E20ABABD_w698_h392.jpg","source":"","author":"","editorcode":"weMedia","editTime":"2020-09-24 00:00:00","updateTime":"2020\/09\/24 00:00:00","wapurl":"http:\/\/\/\/feng.ifeng.com\/c\/801VbMe47aI","introduction":"","wwwurl":"http:\/\/\/\/feng.ifeng.com\/c\/801VbMe47aI","commentsUrl":"ucms_801VbMe47aI","commentCount":0,"text":"
适马作为副厂镜头厂商,但往往在镜头推出速度上都超过原厂,而近一年适马似乎全力推出原生全画幅微单镜头,早前刚推出了的轻便型远摄镜头以及人像镜头后,近日又有新的镜头照片及资料流出,就是这支适马105mm f\/2.8 DG DN Marco微距镜头。<\/p>
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此次曝光的谍照共有三张,基本上已经可以看到了大部份细节。这支适马105mm f\/2.8 DG DN Marco Art镜头比例上较过去大部份相近焦距的微距镜长,不过从照片中看不出对焦时镜筒是不是会伸缩。镜头的对焦环非常宽,并设有独立的光圈环。镜身上除了AF\/MF开关,也有独立功能的AFL按键,跟刚刚推出的85mm f\/1.4 DN一样可在机身设定其功能。另外还有对焦范围限制开关,镜头的最近对焦范围是0.295至0.5m。另外还设有无段式光圈环开关及光圈环锁,操作性十分高。<\/p>
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除了曝光的外观图外,还有此镜的部份规格:<\/p>
. 17片12组光学结构<\/p>
. 最近对焦距离为29.5cm<\/p>
. 最高放大率为1:1<\/p>
. 9片光圈叶片<\/p>
. 滤镜直径为62mm<\/p>
. 体积为72 x 133.6mm<\/p>
. 重量为710g<\/p>
作为适马高端的Art系列,其光学质素十分有保障,加上本身就是一支微距镜头,解析力可能会比适马其他大部份Art镜更出色。但在对焦速度以及对焦精度方面还不知道其性能如何,毕竟作为微距镜头,大多数情况下对焦精确度较速度更为重要。另外镜头似乎没有光学防抖系统。传闻中这支适马105mm f\/2.8 DG DN Marco微距镜头的定价为799美元,折合人民币不到6000元,如果质素够好,似乎是个非常不错的选择。<\/p>
via:dcfever<\/p>","img":[{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/399F71EA395DFB238DF3982EE20C282E6AC72A21_size39_w900_h600.jpeg","size":{"width":"640","height":"426"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/05C8C3A9AFE3E6749CADCE0DC486676E975EC81F_size70_w900_h600.jpeg","size":{"width":"640","height":"426"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/69E5C21949802D450A8D32A2791AE63B20B8E52F_size66_w900_h600.jpeg","size":{"width":"640","height":"426"}}],"summary":"适马作为副厂镜头厂商,但往往在镜头推出速度上都超过原厂,而近一年适马似乎全力推出原生全画幅微单镜头,早前刚推出了的轻便型远摄镜头以及人像镜头后,近日又有新的镜头","sharesummary":"适马作为副厂镜头厂商,但往往在镜头推出速度上都超过原厂,而近一年适马似乎全力推出原生全画幅微单镜头,早前刚推出了的轻便型远摄镜头以及人像镜头后,近日又有新的镜头","commentType":"0","wemediaEAccountId":"505800","showclient":"0","shareurl":"https:\/\/ishare.ifeng.com\/c\/s\/v002CGea2eMp4rfQ1qD93wTR6it5BI3zpobAccrDcGc2lEs__","praise":"0","like_num":"0"}}