数码相机24mm广角和28mm广角有多大区别?这种广角的差异,与微单相机可调镜头的差异,有多大?
推荐回答(4个)
在介绍广角相机之前,首先了解一下相机的焦距。实际上人们在谈论数码相机的焦距时所说的并不是数码相机的实际焦距,而是等效焦距,即相对传统135相机而言的焦距。 从摄影原理来说,焦距越小视野越宽,照片内可以容纳的景物的范围也越广;而焦距越大则视野越窄,也就是说可以拍摄到很远的物体。
在传统相机中,28mm以上的广角镜头是很普及的,但是由于普通数码相机存在感光器件较小的特殊性,要做到较大的广角,镜头的物理焦距就需要很短,导致对像差校正、抗玄光镀膜等有高要求。随着人们对广角拍摄的日益重视,现在3000元左右,价廉的广角型数码相机也正日渐热门起来。理光是家用高性价比便携型广角数码相机的“鼻祖”,从当初G3/G4 wide到现在的RX/GX系列产品,28mm广角都是其最大卖点。除此之外,佳能、奥林巴斯、柯尼卡美能达等相机也推出了28mm广角相机。
对于市场上大部分热销的数码相机而言,其广角焦段一般在35-38mm之间。而真正的广角数码相机其实就是镜头焦距涵盖了28mm广角的产品。由于28mm的广角视野要比数码相机上最常见的35mm、38mm的广角更宽,28mm广角视野是76度视角, 而35mm则只有62度, 因此可以产生很独特的视觉效应,容纳更宽广的场景。这也是为什么消费者更看好28mm广角数码相机的原因。广角最大的特点就是可以拍摄广阔的范围,具有将距离感夸张化,对焦范围广等拍摄特点。 使用广角时可将眼前的物体放得更大,将远处的物体缩得更小,四周的图像容易失真也是它的一大特点。广角还能使图像中的任意一点都调节到最适当的焦距,使得画面更加清晰,也可以称之为完全自动对焦。
广角数码相机的镜头焦距很短,视角较宽,而景深却很深,比较适合拍摄较大场景的照片,如建筑、风景等题材。
现在卡片机都是看光学变焦,CMOS感光元件,谁看广角?一般光学变焦越大越贵,可以照的更远,广角你一变焦就没有了,卡片机与微单没法比,微单索尼的新款是24的广角,比如5R 和6L别的牌子一般是26,你预算多就买微单啊,微单跟卡片机完全不是一个级别的,不要给忽悠了,主要看画质,别的都是假的
没法比,卡片机的感光元件那么小,像素又那么高,堆积到一块,画质不可能高。它的广角是伪广角,是所谓的等效焦距,视角相同,但透视什么的远不如微单、单反,两者不是一个层次的,根本没法比。
当然,对于一般家用来说28mm也够用了,如果需要更广的话,那就24mm吧,推荐24mm的。
就你提到的两款24mm广角来说,卡西欧这款视角比索尼微单这个镜头的视角大不少,因为索尼这款24mm如果等效一下就是36mm,而卡西欧这个24mm是已经等效过的参数。
我用松下长焦机25mm广角和尼康单反18mm广角同一位置拍同一目标,结果松下拍摄的范围更大。
如果你要画质,应该选微单,普通数码相机是无法与其抗衡的。如果你仅希望广角,而预算又难以增加,那就卡片机吧。
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