数码相机光圈大小的差别有多大?

2024-11-02 07:21:32
推荐回答(4个)
回答1:

光圈的大小,就是相机传感器接收光的大小。光圈越大,接收的越多,照出来的图片越亮。光圈的值是相反的。也就是说,光圈值越小,光圈越大。F2.8,是最大光圈。再说夜景拍摄。由于夜间光线不足,所以需要吸收的光越多,在相同ISO、快门速度的情况下,光圈越大,拍摄的越清晰。
但手持拍摄的最小快门速度不能低于1/15秒,不然就会有抖动,光学防抖不要奢望那个东西,晚上没什么用。
再谈ISO,卡片机基本上能接受的400就不错了。最好还是设置成最小的,最大不要超过400.
所以,光圈越大就看似很重要了。
说回卡片机的参数。参数都是虚的,你自己体验了才知道。试下不同ISO的清晰度就可以了,因为通常卡片机是不给设置光圈大小的,光圈大小是智能计算的。
另外,夜景的话,F4.9同样可以拍出F2.8的效果,主要曝光时间长一点就可以的。
外出旅游的话,夜晚拍人,就最好用闪光灯,拍景就关闭闪光灯,找可以放相机或固定相机的地方拍摄,那样才能延长曝光时间,而不降低照片的质量。

回答2:

对于卡片机而言,光圈大小其实并没有多大差别,夜景时相机应该是自动最大光圈的
所谓光圈大小就是指“进光量的多少,光圈越大,进光越多,快门就可以越快,图像就可以更清晰。但就像之前说的,对于卡片机几乎无差别。
光圈的正确表达方式是:1/1.4 1/1.8 1/2.4 1/2.8 ……等等,通常所说的2.8光圈就是指1/2.8,所以这是很大的光圈了。

回答3:

卡片机 选拍摄模式是夜间拍摄就可以了 相机会自动给补充光 防止照片发黄 或者蓝 至于光圈当然选2.8了 这个光圈比较大 进光多 已经自然较清晰

回答4:

楼主,我可精确地告诉您,光圈指数1;2.8的是不适合于拍夜景以及光线太暗的摄影。拍夜景时建议使用大孔径的单反机,指数在1;1.8以上。包您满意。

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