标准镜头的焦距约为摄像管直径的2/3.(**)数学计算值,因为大多数相机装备变焦镜头 。 The normal lens focal length is roughly 2/3 of the TV tube diameter.(**) this is a mathematical calculation because most of the cameras are equipped with zoom lenses . You can buy special high-speed cameras , but they are very expensive. These zooms were great and perfect for this movie. And that's why I chose Optimax .
对于变焦镜头 ,我倾向于有点懒惰并且在没有充分工作的情况下进行拍摄。 With zoom lenses , I tend to get a bit lazy and shoot without adequately working the scene.此变焦镜头 通常用于森林和森林防火,边境管制等特殊场合,普通用户很难普及。 This lens is typically used forest environment and fire monitoring, border control and other special occasions, the average user is hardly universal. 尼克尔Z24-70mmf/2.8S镜头(2019年4月发布),是一款快速、专业的标准变焦镜头 ,适用于尼康Z卡口系统。 The NIKKOR Z 24-70mm f/2.8 S(released in April 2019) is a fast, professional standard zoom lens for the Nikon Z mount system. 我将有一个24-105毫米的变焦镜头 ,这将给我一个广泛的风景摄影和一般摄影选择。 I will have a 24-105 mm zoom , this will give me a wide choice of landscape and general shots. IPhone7有一个与GoProHero5相同的1200万像素的传感器,还有后者所没有的一个真正的变焦镜头 。 (The iPhone 7 offers a 12-megapixel sensor, the same as GoPro's new Hero5, and a true zoom lens , which GoPro's Hero5 lacks.). 价格从200美元涨到400美元的时候,更现代的CMOS图像传感器和非常长的变焦镜头 -30x是标准配置。 Moving up to the $200 to $400 price nets more modern CMOS image sensors and very long zoom lenses - 30x is the standard at this point. 多亏了变焦镜头 ,我才得以捕捉到一个小女孩的眼睛,她是唯一一个在房间里没有睡觉的女孩。 Thanks to the zoom , I was able to catch the eyes of a little girl who was the only one not sleeping in the room. GMSuper Telephoto Zoom Lens . The final problem with a cheap zoom lens is image quality. It's not like now where we have very sharp and fast zoom lenses . Mm motorized zoom lens . 为了开发f1.8大口径变焦镜头 ,有必要解决各种技术问题。 To achieve a wide zoom lens with a maximum aperture of f1.8, various technical problems need to be overcome. 然而,它实际上是一个变焦镜头 ,因为它具有一个可变的焦点设置机制。 However, it is actually a varifocal lens since it features a variable focus setting. 该标准变焦镜头 含有最常用的焦距,相当于35mm胶片格式中的27mm至84mm。 This standard zoom lens covers the most frequently-used focal lengths, equivalent to 27mm to 84mm in the 35mm film format. 就像相机上的变焦镜头 一样,群集的重力可以增强远处原型的光线,使其看起来比正常亮20倍。 Like a zoom lens on a camera, the cluster's gravity boosts the light of the distant protogalaxy to make it look 20 times brighter than normal.
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结果: 88 ,
时间: 0.0188
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