Category

Life

Articles filed under Life.

Latest

144 posts · since 2012

  1. 111

    色彩管理

    从物理和工程角度介绍色彩管理的原理,解释人眼响应曲线、LMS/XYZ/HSV等色彩空间,以及设备间颜色校准的白点校准和色彩映射方法。

  2. 112

    胶片摄影

    入门胶片摄影的体验分享,介绍不同画幅(135/120/6x6/4x5)、取景对焦方式、冲洗扫描流程,以及胶片画质相比数码的优势与坑点。

  3. 113

    镜头的色差

    镜头色差详解:轴向色差与焦距成正比所以长焦需要APO设计,径向色差与焦距无关无法用APO解决。光圈越大色差越明显,小光圈可减轻轴向色差。

  4. 114

    How to shoot photos for the total eclipse

    Practical guide to photographing a total solar eclipse, covering time-lapse techniques, bracket exposure for corona details, and economical alternatives using telescopes instead of expensive telephoto lenses.

  5. 115

    Full frame and medium fromat cameras

    A hands-on comparison of Hasselblad X1D medium format vs full frame cameras: image quality advantages exist, but speed and usability issues make full frame more practical for most users.

  6. 116

    Photography and optics

    Connecting photography concepts with optics: glasses diopter equals 1/focal length, aperture affects depth of field and diffraction, and macro lens design for close focusing.

  7. 117
  8. 118
  9. 119

    关于粗心

    粗心不是运气问题而是不熟练导致的:用错题本、检查单机制、交叉检验等方法系统性地避免低级错误,提高工作能力。

  10. 120

    为什么电池的电压是1.5V?

    电池电压由正负极材料的电化学反应平衡决定,与电池大小无关。通过标准电极电势和能斯特方程解释为什么干电池是1.5V,以及锂电为何电压更高。