UP | HOME
Sachin Patil

Sachin Patil

Free Software Developer | GNU Emacs Hacker

[Notes] Photography
Published on Nov 08, 2019 by Sachin.

Aperture

  • Amount of light you want to allow by varying the size of the hole
  • Range is 2.8f to 22f
  • 2.8f will allow more light than 22f because 2.8f is actually 1/2.8f. Meaning 1/2.8f > 1/22f.
  • Examples:
    • lower f will have sharp object with blur backgroud
    • higher f is used for landscape

shutter-speed

  • higher shutter speed:
    • low light
    • motion blur
  • short shutter speed
    • sport or wild life event
  • Underexposure: small aperture, short shutter speed
  • Overexposure: Large aperture, high shutter speed

ISO

  • Sensitivity of the sensor
  • Higher ISO may lead to grainy images
  • Example:
    • sunset: where the light is low but depends on Aperture & Shutter speed