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更難的拍攝條件：D90視頻實(shí)拍演示

    下面這段在明亮的白天拍攝，但是拍攝者或者相機(jī)處于不斷移動顛簸中，并且拍攝以一定速度運(yùn)動的物體

原文件播放截圖

var useCounts117=0;var playCount117=0;var favCounts117=0;function stng117(){ if(playCount117==0){$.getJSON(Geturl(5,117),function (json){$('#playtime117')[0].innerHTML=json.Item;});playCount117=1;}}function ding117(flag){var str='#badtime117';if(flag==1){ str='#GoodTime117';}$.getJSON(Geturl(flag,117),function (json){if(json.Item!=null){$(str)[0].innerHTML=json.Item;}if(json.Info!=null){alert(json.Info);}});} document.getElementById("object117").SetVariable("urllk",top.location.toString()) D90視頻功能實(shí)拍3[原創(chuàng)] 播放：156 | 收藏：0 | 引用：0 頂 0踩 0收藏 引用 上傳視頻 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();

    上一段視頻拍攝時(shí)間較長，幾乎接近了D90允許最大的5分鐘，此時(shí)我們的D90手柄處能明顯感覺到D90的機(jī)身溫度再升高。不過有媒體朋友稱他們收到的D90并無類似問題，那么但愿這只是個(gè)體現(xiàn)象。D90裝上AFS鏡頭后，最大的好處是方便視頻拍攝時(shí)對焦，但是一邊拍攝尋找不標(biāo)，一邊變焦，再進(jìn)行對焦，對于一般的用戶來說確實(shí)夠忙亂的了。我們建議大家看完上段視頻，你就能自己領(lǐng)悟出使用D90在移動中拍攝視頻的優(yōu)點(diǎn)與不足了。

較明亮的室內(nèi)燈光環(huán)境下，但光源類型較復(fù)雜，手持不斷移動中拍攝：

原文件播放截圖

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視頻功能實(shí)拍5[原創(chuàng)] 播放：76 | 收藏：0 | 引用：0 頂 0踩 0收藏 引用 上傳視頻 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();

    視頻拍攝的實(shí)驗(yàn)再次回到夜景燈光環(huán)境下，此次的光源條件更復(fù)雜，拍攝時(shí)間更長，并且我們在中途更改了曝光補(bǔ)償，不斷的對焦，再變焦再對焦，也算是體驗(yàn)了一把手忙腳亂中拍攝的感覺：

原文件播放截圖

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視頻功能實(shí)拍6[原創(chuàng)] 播放：58 | 收藏：0 | 引用：0 頂 0踩 0收藏 引用 上傳視頻 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第二期評測小結(jié)：

     本期我們并未摻雜進(jìn)太多內(nèi)容，只是仔細(xì)探討了一下D90的視頻實(shí)際拍攝效果。筆者以為，D90作為第一種支持動態(tài)視頻拍攝的數(shù)碼單反，是具有特殊的歷史意義的，就眼前來說，為用戶使用單反相機(jī)帶來更多理由，使他們獲得更多的使用樂趣。從長遠(yuǎn)講，為數(shù)碼單反的未來畫出了一條發(fā)展路線——盡管這可能并非是條好路。而且，回溯數(shù)碼單反30多年的發(fā)展史：昔日以Marvica為代表作為“靜態(tài)攝像機(jī)”被分離出數(shù)字?jǐn)z像機(jī)陣營的數(shù)碼單發(fā)的前輩們，今天以D90的形式完成了一種輪回……

D90視頻拍攝的優(yōu)點(diǎn)：

• 成像潛力不錯(cuò)，環(huán)境理想的情況下能夠拍攝出素質(zhì)不錯(cuò)的畫面
• 雖然損失了自動對焦和VR防抖，但曝光補(bǔ)償和手動對焦依然能夠幫助拍攝
• LV模式轉(zhuǎn)換到視頻拍攝模式十分方便，適合入門用戶
• 拍攝貞數(shù)尚可

D90視頻拍攝功能的不足：

• 拍攝時(shí)只能MF，現(xiàn)代單反鏡頭同時(shí)進(jìn)行手動對焦和變焦操作較困難
• 機(jī)身的測曝光系統(tǒng)似乎不適應(yīng)DV拍攝的需要，對環(huán)境變化適應(yīng)較慢，幾乎相當(dāng)于DV的手動曝光模式，在夜景或正午拍攝時(shí)，需要不斷改變曝光補(bǔ)償
• VR防抖在此時(shí)形同虛設(shè)
• 耗電量較大，機(jī)身MiC會收集機(jī)身上任何操作的響聲，因此對相機(jī)拍攝進(jìn)行曝光補(bǔ)償?shù)炔僮骺赡軙�影響錄�?/LI>