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FAQ What are shutter speed, ISO, and Aperture?

I've seen people talking about shutter speed, ISO, and f-stop. What are those? It really confuses me. What is the advantage in adjusting these manually, when you can just have your camera decide ...

3 answers  ·  posted 4y ago by 10 Rep‭  ·  edited 4y ago by Charlie Brumbaugh‭

#3: Post edited by user avatar Charlie Brumbaugh‭ · 2020-11-01T05:17:50Z (about 4 years ago)
  • Canonical - What are shutter speed, ISO, and Aperture?
  • What are shutter speed, ISO, and Aperture?
#2: Post edited by user avatar 10 Rep‭ · 2020-09-08T18:00:51Z (about 4 years ago)
  • What are shutter speed, ISO, and Aperture?
  • Canonical - What are shutter speed, ISO, and Aperture?
#1: Initial revision by user avatar 10 Rep‭ · 2020-09-08T18:00:27Z (about 4 years ago)
What are shutter speed, ISO, and Aperture?
I've seen people talking about shutter speed, ISO, and f-stop. What are those? It really  confuses me. 

What is the advantage in adjusting these manually, when you can just have your camera decide it for you? 

Lastly, does using manual mode for everything have an advantage or disadvantage?