Re: [問題] 感光元件尺寸單位 1" = 16mm ?!
建議看Dpreview這篇：
Sensor Sizes: Camera System: Glossary: Learn: Digital Photography Review
http://www.dpreview.com/learn/?/Glossary/Camera_System/sensor_sizes_01.htm
裡面有一段話
Sensors are often referred to with a "type" designation using imperial
fractions such as 1/1.8" or 2/3" which are larger than the actual sensor
diameters. The type designation harks back to a set of standard sizes given
to TV camera tubes in the 50's. These sizes were typically 1/2", 2/3" etc.
The size designation does not define the diagonal of the sensor area but
rather the outer diameter of the long glass envelope of the tube.
這應該就是原因了。
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.64.86.16
推
08/13 00:55, , 1F
08/13 00:55, 1F
→
08/13 00:56, , 2F
08/13 00:56, 2F
推
08/13 01:11, , 3F
08/13 01:11, 3F
討論串 (同標題文章)
完整討論串 (本文為第 2 之 3 篇)：