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16-09-21【幕后故事】​揭秘G20峰会央视新闻演播室L系列LED聚光灯布光

ARRI 2018-06-19 15:29:56


揭秘G20峰会央视新闻演播室L系列LED聚光灯布光


“各个频道的布光风格都不太一样,尤其是以真实西湖风景为背景的演播室,对光照度要求很高,这次ARRI的L系列LED聚光灯充分体现了高光效,完美呈现出演播室灯光效果。”

—— CCTV新闻中心资深新闻灯光设计师 葛广利


中央电视台(CCTV)新闻中心的资深新闻灯光设计师葛广利接受了ARRI的采访,分享在本次G20峰会上在室内外新闻演播室进行新闻直播与转播上使用L系列LED聚光灯布光的幕后故事。


G20(二十国集团)是一个国际经济合作论坛。在2016年9月举行的杭州峰会上,参与的国家领导人以及国际组织负责人包括中国国家主席习近平、美国总统奥巴马与联合国秘书长潘基文等。中央电视台分别在新闻频道、国际频道与外语频道对这次峰会进行了全面直播及转播,动态关注会议进展。




在重要的国家级事件的新闻直播或者转播中选择灯光设备的时候,要考虑的关注点是哪些呢?


对于重大时政新闻的直播和录制活动中,给首长的布光方式和一般的采访、会议的布光之间是存在着一定区别的。根据我的经验,在这些重大的场合一般需要选用显色指数高的灯具,这样能更好地还原人物肤色,让我们从画面中看到漂亮的肤色表现。而在灯具的组合上,聚光灯和柔光灯具相结合,切记不能过于刺眼。最后一点是,轮廓光尽量侧一些,否则投射到桌子上的稿纸影子会过多过硬,从而影响阅读。


ARRI的LED灯具在使用上,跟传统的灯具相比有没有一些明显的区别?


我对ARRI的LED灯具是绝对信任的。当然,LED灯具比起传统灯具的优点有很多。而灯光师最关注的无疑还是显色性以及光效。在每次的使用之中,ARRI的灯光设备都能表现得非常稳定,能精准地还原人物以及场景色彩。同时,在操作层面上讲,十分灵活方便,能精准地调节色温,两侧均有聚散旋钮,且安装遮菲方便快捷,使灯光师的布光效率大大提高。


在今年的G20峰会期间,中央电视台是直播还是录播居多?在新闻直播现场,对于灯光品质有特殊的要求吗?


这次的峰会中, 为了提高新闻的时效性,大部分电视节目都是直播的。因此,对于现场的直播设备都有很大的要求和考验。


我们的直播团队在会议中一共投入了4个演播室,其中包括3个室内以及1个室外演播室。这几个演播室分别为央视新闻频道,中文国际频道,外语频道提供直播信号。而其中各个频道的布光风格都不太一样,尤其是以真实西湖风景为背景的演播室,对光照度要求很高,这次ARRI的L系列LED聚光灯充分体现了高光效,完美呈现出演播室灯光效果。




在使用L系列做室内外新闻演播的时候,遇到过什么有趣的小故事吗?


这次峰会中,我们的其中一个外景演播室是位于室外平台,上方没有遮挡。当时我们刚结束一档节目直播,正在另外一个演播室调试灯光。由于江南的天气经常变化,在这时候外面突然开始下起雨,我们才想起室外的灯具还没来的及收起来。这时我们都非常担心这些灯会因此受到损害,马上冲过去将它们都收回来,赶紧擦拭、风干。 等过了一段时间,我们战战兢兢地试着通电点亮,结果全部灯都能正常使用,我们方才放心下来,对ARRI灯具的质量更加有信心了。


而在其它的性能上,例如排气散热,ARRI的L系列同样表现得很出色。记得在室内录制首长讲话,我们当时没有很多的ARRI灯具,布光时就用了一个其它品牌的LED灯具作为主灯,再加上ARRI的L-7聚光灯作为辅光。在彩排的时候,由于现场比较乱,声音比较嘈杂,没有注意到灯具风扇转动的声音。但当正式录制的时候,现场非常安静,再加上录制的地点并不大,所以作为主灯的LED灯具的风扇时隐时现的噪音很大地影响到了录制。我们只好讲其关掉,用L-7做为主光。之后,现场的设备噪音都完全消失了,幸亏我们当时有ARRI的灯具,才得以顺利完成这一场重要的录制。


了解更多有关L系列LED聚光灯的信息,请查看以下链接:


L系列LED聚光灯






CCTV Uses ARRI L-Series during the G20 Summit News Coverage


"Each channel has its distinct lighting style. Especially the studio with West Lake as backdrop required higher light level to properly illuminate the news anchors. ARRI L-series did an amazing job with their high output and light quality."

—— CCTV Senior Broadcast Lighting Designer Ge Guangli


Senior broadcast lighting designer Ge Guangli from China Central Television (CCTV) used ARRI L-series lights to illuminate the news studios during CCTV’s live coverage of the G20 summit. In this interview with ARRI, Ge shares his experience working with L-series LED lights. 


The G20 (Group of Twenty) is an international forum for the governments and central bank governors from 20 major economies. Global leaders that took part in the 2016 G20 Hangzhou summit include the president of China Xi, the president of United States Obama and the UN Secretary General Ban. CCTV offered extensive live news coverage through various mandarin and foreign language channels.




What is the most important consideration when choosing lighting equipment for broadcasting international events?


When broadcasting international and political events, extra care should be taken when lighting the faces of high profile figures. Lighting fixtures with high color rendering index are preferred for their ability to reproduce accurate and pleasing skintone. In addition, there should be a combination of hard lights and soft lights and an appropriate light level should be maintained. Lastly, back light should be positioned more towards the sides to avoid casting shadow on the news scripts.


Were there any differences between traditional fixture and ARRI LED fixture?


I find ARRI LED fixtures very trustworthy. LED fixtures offer many advantages over traditional fixtures. As lighting designers we care the most about color rendering and light output. ARRI lights have been extremely reliable while offering accurate color reproduction. Operating the lights was simple and straightforward, the color temperature can be controlled precisely. Knobs for flood to spot capability were accessible from both sides of the fixture. Also installing barn doors was fast and convenient, which made setting up lights a lot more efficient.


During the G20 news coverage, was it mostly live broadcast or tape delay? Were there any special requirements for the lighting fixtures in the news studios?


In order to ensure timeliness of news delivery, the majority of the programs were live broadcast. It was a serious challenge for our broadcast equipment.


The news team dedicated four news studios for the G20 summit coverage. There were three indoor news studios and an outdoor open air news studio. These studios were used by CCTV news channel, mandarin international channel and foreign language channel. Each channel has its distinct lighting style. Especially the studio with West Lake as backdrop required higher light level to properly illuminate the news anchors. ARRI L-series lights did an amazing job with their high output and light quality.



Were there any interesting stories when working with ARRI L-series?


During the G20 summit we had an outdoor open air news studio built on a platform. There was one time we just finished a program and we were setting up the lights in another studio. The weather was unpredictable and it suddenly started raining. We realized that the lights were still hanging outside in the rain and we retrieved them immediately. At first we were worried about potential damage but after drying the lights they had no problem at all. This again proved us how reliable and robust ARRI lights are.


ARRI L-series lights also performed well in regards to cooling. I remember once we were filming a leader’s speech, because we did not have many ARRI lights we used a LED fixture from another manufacturer as key light and ARRI ones as fill. During rehearsal we did not notice the cooling fan noise from the key light due to ambient noise. However when the speech officially started the room was a lot quieter and made the fan noise stand out. We had to turn it off and swap ARRI L-7 as the key light. The noise was immediately gone. We were able to finish filming that important session thanks to ARRI lights.