手机数码

    今日:70| 主题:38752
收藏本版 (4)
手机、平板、VR等3C数码产品的交流.

[其他] WTF is a mirrorless camera?

[复制链接]
与世无争 发表于 2016-10-3 10:16:45
129 3

立即注册CoLaBug.com会员,免费获得投稿人的专业资料,享用更多功能,玩转个人品牌!

您需要 登录 才可以下载或查看,没有帐号?立即注册

x

WTF is a mirrorless camera?-1 (difference,recording,adjusted,history,however)

  Digital cameras today tend to fall under one of two categories: SLR or mirrorless.
   What’s the difference? And why does it matter? To find out, let’s take a quick trip through the history of the medium. It turns out that many of the changes to how cameras work have been attempts to solve a simple problem: How do you show what’s in front of the lens to both the user and whatever’s recording that image?
  From glass plates to mirrors

  Originally, photographs weren’t on film; instead, you’d coat a metal or glass plate with a photosensitive liquid. This would be placed behind the lens — before you did so, however, you looked through where the plate would later be to frame the photo.
  To speed up the process, a second lens was added near the first, through which framing and focus could be adjusted without fiddling with the primary one.
  Although these offset lenses only offered an approximation of what the primary lens would see, the design persists to this day. They’re called “rangefinder” cameras, and the lens you look through has been given additional functionality, notably the ability to determine the distance to the subject for the purpose of setting focus.

WTF is a mirrorless camera?-2 (difference,recording,adjusted,history,however)
   Top down view of a Yashica-635 Twin Lens Reflex.
    Mirrors were added around the turn of the century (the last one, to be clear), allowing for two new camera types. One was a “twin-lens” setup where the mirror bounced the image from the extra lens upwards onto a small translucent screen; a second, similar lens just below opened onto the shutter and the film itself, and focusing the first would also focus the second.
  In the other design, the mirror went directly between the lens and the film, reflecting the image through a prism that, in turn, refracted it into your eye. But when you hit the shutter button, the mirror flipped up out of the way and the shutter opened on the film. This was known as the single lens reflex, or SLR. The design was not only more compact, but since the user looked through the primary lens, you could switch that lens out and still see exactly what the film would see.
12下一页
友荐云推荐




上一篇:诺基亚要做安卓机,但有个消息让中国消费者失望
下一篇:Sony Xperia XZ Is Now Up For Sale In The US, Retails At $699
酷辣虫提示酷辣虫禁止发表任何与中华人民共和国法律有抵触的内容!所有内容由用户发布,并不代表酷辣虫的观点,酷辣虫无法对用户发布内容真实性提供任何的保证,请自行验证并承担风险与后果。如您有版权、违规等问题,请通过"联系我们"或"违规举报"告知我们处理。

chen11001155 发表于 2016-10-6 19:28:04
现在问题来了,“挖掘机技术哪家强?找chen11001155”
回复 支持 反对

使用道具 举报

hongxin123456 发表于 2016-10-6 20:06:13
报告!我就是路过来看看的。。。
回复 支持 反对

使用道具 举报

董凤 发表于 2016-11-9 20:32:48
高手云集 果断围观
回复 支持 反对

使用道具 举报

*滑动验证:
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

我要投稿

推荐阅读

扫码访问 @iTTTTT瑞翔 的微博
回页顶回复上一篇下一篇回列表手机版
手机版/CoLaBug.com ( 粤ICP备05003221号 | 文网文[2010]257号 )|网站地图 酷辣虫

© 2001-2016 Comsenz Inc. Design: Dean. DiscuzFans.

返回顶部 返回列表