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尼康D90评测

http://www.dbit.cn 2008-9-6 9:51:41  来源:pcpop  编辑:瑞瑞
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更难的拍摄条件:D90视频实拍演示

    下面这段在明亮的白天拍摄,但是拍摄者或者相机处于不断移动颠簸中,并且拍摄以一定速度运动的物体

单反客串高清DV!尼康D90评测第二期
原文件播放截图

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D90视频功能实拍3[原创]
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RequestJson('117');var orginFlash = {init:false,isFullScreen:false,position:'',top:'',left:'',width:'',height:''}; function writeFlash(){ var so = new SWFObject('/Files/BeyondPic/2008-9/6/player.swf', 'object117', '480', '400', 8, '#FFFFFF'); so.addParam('quality', 'high'); so.addVariable('file','117'); so.addVariable('screen','1'); so.addParam('swLiveConnect', 'true'); so.addParam('menu', 'false'); so.addParam('allowScriptAccess', 'always'); so.addParam('allowFullScreen', 'true'); so.addParam('wmode', 'transparent'); so.write('flvurl117'); } function getScreenSize(){ var w = 0; var h = 0; if( typeof( window.innerWidth ) == 'number' ) { w = window.innerWidth; h = window.innerHeight; } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { w = document.body.clientWidth; h = document.body.clientHeight; } return {width:w,height:h}; } function fullScreen(){ if(!orginFlash.init){ orginFlash.position = document.getElementById('flvurl117').style.position; orginFlash.top = document.getElementById('flvurl117').style.top; orginFlash.left = document.getElementById('flvurl117').style.left; orginFlash.width = document.getElementById('flvurl117').style.width; orginFlash.height = document.getElementById('flvurl117').style.height; } orginFlash.init = true; orginFlash.isFullScreen = true; var screenSize = getScreenSize(); try{ document.getElementById('flvurl117').style.position = 'absolute'; document.getElementById('flvurl117').style.top = '0px'; document.getElementById('flvurl117').style.left = '0px'; document.getElementById('flvurl117').style.width = screenSize.width ; document.getElementById('flvurl117').style.height = screenSize.height; document.body.style.overflow='hidden'; window.scrollTo(0,0); }catch(e){ } } function normal(){ if(orginFlash.init){ orginFlash.isFullScreen = false; try{ document.getElementById('flvurl117').style.position = orginFlash.position; document.getElementById('flvurl117').style.top = orginFlash.top; document.getElementById('flvurl117').style.left = orginFlash.left; document.getElementById('flvurl117').style.width = orginFlash.width; document.getElementById('flvurl117').style.height = orginFlash.height; document.body.style.overflow='auto'; }catch(e){ } } } function reSize(){ if(orginFlash.isFullScreen){ fullScreen(); } } window.onresize = reSize; writeFlash();

    上一段视频拍摄时间较长,几乎接近了D90允许最大的5分钟,此时我们的D90手柄处能明显感觉到D90的机身温度再升高。不过有媒体朋友称他们收到的D90并无类似问题,那么但愿这只是个体现象。D90装上AFS镜头后,最大的好处是方便视频拍摄时对焦,但是一边拍摄寻找不标,一边变焦,再进行对焦,对于一般的用户来说确实够忙乱的了。我们建议大家看完上段视频,你就能自己领悟出使用D90在移动中拍摄视频的优点与不足了。


较明亮的室内灯光环境下,但光源类型较复杂,手持不断移动中拍摄:

单反客串高清DV!尼康D90评测第二期
原文件播放截图

var useCounts118=0;var playCount118=0;var favCounts118=0;function stng118(){ if(playCount118==0){$.getJSON(Geturl(5,118),function (json){$('#playtime118')[0].innerHTML=json.Item;});playCount118=1;}}function ding118(flag){var str='#badtime118';if(flag==1){ str='#GoodTime118';}$.getJSON(Geturl(flag,118),function (json){if(json.Item!=null){$(str)[0].innerHTML=json.Item;}if(json.Info!=null){alert(json.Info);}});} document.getElementById("object118").SetVariable("urllk",top.location.toString())
D90视频功能实拍5[原创]
播放:76 | 收藏:0 | 引用:0
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RequestJson('118');var orginFlash = {init:false,isFullScreen:false,position:'',top:'',left:'',width:'',height:''}; function writeFlash(){ var so = new SWFObject('/Files/BeyondPic/2008-9/6/player.swf', 'object118', '480', '400', 8, '#FFFFFF'); so.addParam('quality', 'high'); so.addVariable('file','118'); so.addVariable('screen','1'); so.addParam('swLiveConnect', 'true'); so.addParam('menu', 'false'); so.addParam('allowScriptAccess', 'always'); so.addParam('allowFullScreen', 'true'); so.addParam('wmode', 'transparent'); so.write('flvurl118'); } function getScreenSize(){ var w = 0; var h = 0; if( typeof( window.innerWidth ) == 'number' ) { w = window.innerWidth; h = window.innerHeight; } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { w = document.body.clientWidth; h = document.body.clientHeight; } return {width:w,height:h}; } function fullScreen(){ if(!orginFlash.init){ orginFlash.position = document.getElementById('flvurl118').style.position; orginFlash.top = document.getElementById('flvurl118').style.top; orginFlash.left = document.getElementById('flvurl118').style.left; orginFlash.width = document.getElementById('flvurl118').style.width; orginFlash.height = document.getElementById('flvurl118').style.height; } orginFlash.init = true; orginFlash.isFullScreen = true; var screenSize = getScreenSize(); try{ document.getElementById('flvurl118').style.position = 'absolute'; document.getElementById('flvurl118').style.top = '0px'; document.getElementById('flvurl118').style.left = '0px'; document.getElementById('flvurl118').style.width = screenSize.width ; document.getElementById('flvurl118').style.height = screenSize.height; document.body.style.overflow='hidden'; window.scrollTo(0,0); }catch(e){ } } function normal(){ if(orginFlash.init){ orginFlash.isFullScreen = false; try{ document.getElementById('flvurl118').style.position = orginFlash.position; document.getElementById('flvurl118').style.top = orginFlash.top; document.getElementById('flvurl118').style.left = orginFlash.left; document.getElementById('flvurl118').style.width = orginFlash.width; document.getElementById('flvurl118').style.height = orginFlash.height; document.body.style.overflow='auto'; }catch(e){ } } } function reSize(){ if(orginFlash.isFullScreen){ fullScreen(); } } window.onresize = reSize; writeFlash();


    视频拍摄的实验再次回到夜景灯光环境下,此次的光源条件更复杂,拍摄时间更长,并且我们在中途更改了曝光补偿,不断的对焦,再变焦再对焦,也算是体验了一把手忙脚乱中拍摄的感觉:

单反客串高清DV!尼康D90评测第二期
原文件播放截图

var useCounts121=0;var playCount121=0;var favCounts121=0;function stng121(){ if(playCount121==0){$.getJSON(Geturl(5,121),function (json){$('#playtime121')[0].innerHTML=json.Item;});playCount121=1;}}function ding121(flag){var str='#badtime121';if(flag==1){ str='#GoodTime121';}$.getJSON(Geturl(flag,121),function (json){if(json.Item!=null){$(str)[0].innerHTML=json.Item;}if(json.Info!=null){alert(json.Info);}});} document.getElementById("object121").SetVariable("urllk",top.location.toString())
D90视频功能实拍6[原创]
播放:58 | 收藏:0 | 引用:0
0 0收藏 引用 上传视频
RequestJson('121');var orginFlash = {init:false,isFullScreen:false,position:'',top:'',left:'',width:'',height:''}; function writeFlash(){ var so = new SWFObject('/Files/BeyondPic/2008-9/6/player.swf', 'object121', '480', '400', 8, '#FFFFFF'); so.addParam('quality', 'high'); so.addVariable('file','121'); so.addVariable('screen','1'); so.addParam('swLiveConnect', 'true'); so.addParam('menu', 'false'); so.addParam('allowScriptAccess', 'always'); so.addParam('allowFullScreen', 'true'); so.addParam('wmode', 'transparent'); so.write('flvurl121'); } function getScreenSize(){ var w = 0; var h = 0; if( typeof( window.innerWidth ) == 'number' ) { w = window.innerWidth; h = window.innerHeight; } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { w = document.body.clientWidth; h = document.body.clientHeight; } return {width:w,height:h}; } function fullScreen(){ if(!orginFlash.init){ orginFlash.position = document.getElementById('flvurl121').style.position; orginFlash.top = document.getElementById('flvurl121').style.top; orginFlash.left = document.getElementById('flvurl121').style.left; orginFlash.width = document.getElementById('flvurl121').style.width; orginFlash.height = document.getElementById('flvurl121').style.height; } orginFlash.init = true; orginFlash.isFullScreen = true; var screenSize = getScreenSize(); try{ document.getElementById('flvurl121').style.position = 'absolute'; document.getElementById('flvurl121').style.top = '0px'; document.getElementById('flvurl121').style.left = '0px'; document.getElementById('flvurl121').style.width = screenSize.width ; document.getElementById('flvurl121').style.height = screenSize.height; document.body.style.overflow='hidden'; window.scrollTo(0,0); }catch(e){ } } function normal(){ if(orginFlash.init){ orginFlash.isFullScreen = false; try{ document.getElementById('flvurl121').style.position = orginFlash.position; document.getElementById('flvurl121').style.top = orginFlash.top; document.getElementById('flvurl121').style.left = orginFlash.left; document.getElementById('flvurl121').style.width = orginFlash.width; document.getElementById('flvurl121').style.height = orginFlash.height; document.body.style.overflow='auto'; }catch(e){ } } } function reSize(){ if(orginFlash.isFullScreen){ fullScreen(); } } window.onresize = reSize; writeFlash();

 


D90第二期评测小结:

     本期我们并未掺杂进太多内容,只是仔细探讨了一下D90的视频实际拍摄效果。笔者以为,D90作为第一种支持动态视频拍摄的数码单反,是具有特殊的历史意义的,就眼前来说,为用户使用单反相机带来更多理由,使他们获得更多的使用乐趣。从长远讲,为数码单反的未来画出了一条发展路线——尽管这可能并非是条好路。而且,回溯数码单反30多年的发展史:昔日以Marvica为代表作为“静态摄像机”被分离出数字摄像机阵营的数码单发的前辈们,今天以D90的形式完成了一种轮回……

D90视频拍摄的优点:

  • 成像潜力不错,环境理想的情况下能够拍摄出素质不错的画面
  • 虽然损失了自动对焦和VR防抖,但曝光补偿和手动对焦依然能够帮助拍摄
  • LV模式转换到视频拍摄模式十分方便,适合入门用户
  • 拍摄贞数尚可

D90视频拍摄功能的不足:

  • 拍摄时只能MF,现代单反镜头同时进行手动对焦和变焦操作较困难
  • 机身的测曝光系统似乎不适应DV拍摄的需要,对环境变化适应较慢,几乎相当于DV的手动曝光模式,在夜景或正午拍摄时,需要不断改变曝光补偿
  • VR防抖在此时形同虚设
  • 耗电量较大,机身MiC会收集机身上任何操作的响声,因此对相机拍摄进行曝光补偿等操作可能会影响录音

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