Why is a wide aperture better? Photography for Beginners Series
In Series 1, Episode 3 of Tea Break Tog I help you to explore the world of ‘apertures’ in a some more detail. You will learn that exposure is just a big balancing act and that being able to open your aperture wide is a pretty awesome thing!
Here’s a summary;
- Even on a bright, sunny day you have to open your aperture wide if you want a shallow depth of field.
- If you open your aperture wide in bright conditions you will need to compensate by making sure you leave it open for a very short amount of time and that your camera is not sensitive to the light (fast shutter speed and low ISO)
- Once you are correctly exposed you can’t change one setting (aperture, shutter speed or ISO) without changing at least one of the others.
- If you take a photograph of a group of people and they are arranged behind and in front of each other then you will need a narrower aperture to make sure they are all in focus.
- Why is a wide aperture better? Being able to open your aperture wide also allows you to shoot well in low light because you can let in more light.
- We call lenses which open wide ‘fast lenses’ because they allow you to have a faster shutter speed. A faster shutter speed usually means a sharper image.
- Not all lenses can open to the same widths. Some beginner zoom lenses can only open to f/3.5 – f/5.6. When you are zoomed out you can open to f/3.5 but when you are zoomed in you can only open to f/5.6.
- The wider a lens opens the more expensive it is.
If you NEED a wide aperture in your life but don’t want to break the bank you can purchase a basic 50mm lens which will open to f/1.8.
Download my eBook to find out more about which camera and lens to purchase if you are a beginner.
Next time we will be getting to grips with shutter speed!
TEA BREAK TASK
Search online for images which have different depths of field. Some with a shallow depth of field and some with a deep depth of field. Look at them and think about how the image would have changed if it had been taken with a narrower or wider aperture. Using aperture wisely helps you to tell stories with your images!
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