人眼 相当于 什么镜头呢？

留学垃圾

今早吃饭，看看 餐桌上的花， 在看看窗外的柠檬树，定睛片刻，找到两眼所能看到的左右边界，突然想问，
一对正常视力的眼睛， 相当于 什么镜头呢？
视野范围，广角到长焦，对焦速度，焦距，分辨率，光圈大小，感光度，等等。。

有先人研究过么？

入门新手，纯属好奇，谢谢大家！

开源大帝

The basic accuracies of the human eye are[citation needed]:
Quick autofocus from distances of 10 cm (young people) to 50 cm (most people 50 years and older) to infinity[citation needed].
Angular resolution: 1-2' (about 0.02°-0.03°), which corresponds to 30–60 cm at a 1 km distance[citation needed].
Field of view (FOV): simultaneous visual perception in an area of about 160° × 175°.[1]
Faint stars up to +6.5 magnitude under a modern dark sky[citation needed].
Distance (factor of light intensity and light interference) the Andromeda Galaxy is visible at 2.5 million light years or 10 million trillion km[citation needed].
Photometry (brightness) to ±10% or 1% of intensity - in a range between night and day of 1:10,000,000,000[citation needed].
Symmetries of 10-20' (3-6 m per 1 km), see the measurements of Tycho Brahe and the Egyptians[citation needed].
Interval estimations (for example at a plan on paper) to 3-5%[citation needed].
Unconscious recognizing of movement (that is "alarm system" and reflexes)[citation needed].

千龄

闭上你的一只眼睛你看到的范围就相当于50mm的标准镜头

开源大帝

分辨率可以算出来: 160 / 0.02 * 175 / 0.02 =  8000 * 8750 = 7 千方像素

动态范围 1:1百亿!

以前看过人们讨论，好像光圈相当于 f2 ~ f8 可变光圈

[The f-number of the human eye varies from about f/8.3 in a very brightly lit place to about f/2.1 in the dark.[8] The presented maximum f-number has been questioned,[9] as it seems to only match the focal length that assumes outgoing light rays.[clarification needed] According to the incoming rays of light (what we actually see), the focal length of the eye is a bit longer, resulting in maximum f-number of f/3.2.]

ISO 在室外强光下大概达到 ISO 1.3, 夜晚 ISO 1200 (这个很不准确)

PLA1987

如果能一眨眼就把图像记录下来，那就NB了，

季雪儿

恩那，决定了，以后用眼睛喀嚓就好了～～～可是我近视八百度加散光，像素还有7千万吗？

开源大帝

估计只有 7 百万了....