Wednesday, November 20, 2013

The Three Pillars of Exposure: Aperture, shutter speed, and ISO

Aperture:

Aperture F2.8



Aperture F16

Most of the time aperture images want to focus you on one particular thing. The smaller the aperture the larger the aperture, the higher the aperture the smaller the aperture.the size of the aperture has a direct impact on the depth of field, which is the area of the image that appears sharp. A large f-number such as f/32, (which means a smaller aperture) will bring all foreground and background objects in focus, while a small f-number such as f/1.4 will isolate the foreground from the background by making the foreground objects sharp and the background blurry


Shutter Speed: 

High Shutter Speed



Slow Shutter Speed


During when the sun was still out:

  • a.) the dunking booth
Fast
  • b.) the food eating contest
medium
  • c.) the rock climbing wall
slow
  • d.) someone working at a booth
medium
  • e.) the DJ/MC working at the middle of the circle
medium
  • f.) the Diamonds performance.
fast

When it is dark:

  •  a.) The dunking booth
medium
  •  b.) The food eating contest
slow
  •  c.) the rock climbing
slow
  •  d.) The DJ/MC working at the middle of the circle
slow
  •  f.) the diamonds performance
medium



  1. When the camera is set to Auto mode, both shutter speed and aperture are automatically chosen by the camera. When you shoot in Aperture Priority mode, you set the lens aperture, while the camera automatically sets the shutter speed. By setting the camera to Shutter Priority mode, where you set the shutter speed and the camera automatically selects the aperture. By setting the camera to Manual mode, where you set both shutter speed and aperture automatically.

ISO:






ISO 200




ISO 3200


  1.  Raising the ISO on your camera will allow you to shoot at a higher shutter speed, giving you a better chance of getting the perfect shot.
  2. When there is enough light, use a low ISO to catch every detail and have a highest image quality.
  3. You should increase the ISO when there is not enough light for the camera to be able to quickly capture an image. Anytime when shooting indoors without a flash, set your ISO to a higher number to be able to freeze motion. Other cases where you might want to increase ISO are when you need to get ultra-fast shots.


Experimenting:
  • F4 looks best at 1/125th of a second shutter speed (The background in this photo is not visible all you can see is a couple) Aperture is okay here, shutter speed is a little too low
  • F5.6 looks best at 1/60th of a second shutter speed (The background in this photo is really burry all you can see is a couple) Aperture is okay here, shutter speed is still low
  • F8 looks best at 1/60th of a second shutter speed. (The background in this photo is a little blurry, you can almost can see the background) Aperture okay here, the shutter speed is still low
  • F11 looks best at 1/60th of a second shutter speed. ( background getting clearer but the picture seems darker) Aperture is too high, shutter speed is almost there.
  • F16 looks best at 1/30th of a second shutter speed ( background getting clearer but the picture seems darker) Aperture is too high, shutter speed is fine
  • F22 looks best at 1/15th or 1/8th of a second shutter speed. background (is now clear and picture is still dark) Aperture is still high, shutter speed is good

  1. I think the lowest shutter speed a photographer can hand-hold without a tripod is 1/10 sec. 
  2. On the quizzes i did alright, i got a 67% on the aperture and a 78% on the shutter speed.





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