3 Easy Ways to Adjust Your Exposure

By now, you should have switched from shooting in automatic to shooting in manual mode. Are you ready to master the art of adjusting your exposure?

According to the ever trusted Wikipedia, exposure refers to the amount of light per unit area reaching a photographic film or electronic image sensor, as determined by shutter speed, lens aperture and scene luminance.

In my words, it’s simply the degree of lightness or darkness in an image determined by the shutter speed, ISO and aperture. When an image is too bright, it’s said to be overexposed. When its too dark, it’s underexposed. The shutter speed, ISO, and aperture all change the amount of light let into the camera.

Shutter Speed

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Read this if you want to take great photographs 

This controls the length of time light enters your camera.

Therefore, the slower your shutter speed, the brighter the image, the faster the shutter speed, the darker the image.

Fast shutter speeds come in handy when you’re taking action pictures such as a golden retriever running across the park or Usain Bolt dashing for the finish line.

Slow shutter speeds are usually used in situations whereby there isn’t enough light in the scene. This is called long exposure – you are exposing your camera to more light. Get it? In order to get clear picture here, your camera has to be mounted on a sturdy tripod. why? Because of the slow shutter speed, you hand will shake, machine the picture blurry.

Look at these 2 images. Which one uses a slow shutter speed? And which one was taken with a fast shutter speed?

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Aperture

aperture
Read this if you want to take great photographs 

Wikipedia says an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.

That’s long. Aperture is the way your camera opens up to more light. It’s usually measured in f stops

There are 2 cool things about your aperture

  1. Instead of the higher your aperture, the brighter your picture, it’s the higher your aperture, the darker your picture. The lower your aperture, the brighter your picture. Why is it measured like this, I have no damn clue. The inventors were probably confused. To illustrate, an f1.8 would be brighter than an f8.
  2. The lower your aperture, the shallower your depth of field i.e. there are less objects in focus. Similarly, the higher you aperture, the deeper your depth of field i.e.there are more objects in focus.
Look at these two pictures, which one used a higher f stop and which one used a lower f stop?

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ISO

iso
Read this if you want to take good photographs 
The full meaning ISO is International Standards Organization. It is the sensitivity of your image sensor.
This should be your last resort when trying to balance the exposure of your image. I’ll explain.
Let’s say you’ve decreased your shutter speed and your aperture but your picture isn’t well exposed, ISO comes to the rescue.
ISO makes you camera more sensitive to light. Now be careful here. The higher your ISO, obviously the brighter your image, but the grainer your picture becomes. (This is why I said it should be your last resort)
Note: if  it’s very bright outside, leave your ISO on 100, in fact don’t touch it!
HOMEWORK TIME!
Now raindrops, in order for me to know if you’ve learnt a thing a or two, answer these questions in the comment section below:
1. It’s 2pm and i want to shoot a cheetah running across the safari. What settings should I use?
2. I want to take a picture of a single sunflower in the morning, but there are so many in the field. What settings should i use?
3. It’s 11 pm, I want to capture the Toronto skyline but it’s too dark. What settings should I use?
First person to answer all correctly would win this book!
Until next time raindrops!
Enem Odeh 🌸
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