//
you're reading...

Learn By Doing Photography

Understanding your Aperture – Learn by Doing Photography

Learn by Doing Photography – Practice your photography skills with weekly photography assignments. I will post a new assignment every Friday, you can post your pictures at the bottom of this post or on the DigitalCamFan Facebook. If you have any questions please refer to the guidelines, if you have no questions jump right in any time!

We are going to start at the beginning… If you’re are on automatic and want to move forward and learn some new creative moves then stick around. Every Friday we will have a new challenge, a new task to try on your camera. If you’re already on manual then it’s time to review.

Photography Assignment #1 – Take the same picture using different apertures. Don’t move your camera just change the aperture.

This is on of the funniest things to learn on your camera! It took me awhile to understand exactly what an aperture is and how it impacts your image. I read about and listened to photographers explain it to me, but it didn’t really sink in until the day I did this challenge.

It’s easier if you have a tripod to set your camera on, but if not just set it on a stable surface. On your mode dial change your setting to AV on Canon and A on Nikon. Set your ISO to 100. Turn your dial so you are at your widest aperture (which would be the smallest number on the dial) focus about 1/3 of the way into the picture and take a picture. Without moving your camera change your aperture to the next number and take a another picture.  You will notice the depth of field change more if you’re closer to your subject. If your subject is 10 feet away you’re not going to notice the depth of field change. So get up close and give it a try.

There are three things that affect depth of field

  • Aperture (F- Stop)
  • Focal Length
  • Distance from Subject

What is an aperture? It’s the opening in your lens which helps determine how much light is going to reach your camera’s sensor.

What is an aperture

What is a Focal Length? The distance between the center of a lens or curved mirror and its focus. The focal length refers to the lens you’re using, maybe you have a 50mm lens, 18-55mm lens or 24-105mm lens etc.

What is Depth of Field? It’s the area of sharpness from near to far within your photograph.

What is Bokeh? The blur in the out-of-focus areas of an image

Aperture is also refereed to as f-stop –

The smaller opening (higher number) will give us more more depth of field. So if your camera is set at f/22 your entire scene is going to be in focus.
The larger opening (lower number) will give us less depth of field. If you use something like f/2.8 your going to get that lovely bokeh look, where something is in focus and the    background is all blurry.

This is a great quick video on understanding what an aperture does! Lori Allen does a great job explaining it:

 

The pictures below were all taken on aperture priority. (You set the aperture and the ISO and the camera will set the shutter speed) All these images were taken using the Canon 24-105mm lens.

F/4.0 at 0.4 sec

4 (1 of 1)
F/5.6 at 0.8 sec

5.6 (1 of 1)
F/8.0 at 1.6 sec

8 (1 of 1)
F/11 at 3.2 sec

11 (1 of 1)
F/16 at 6.0 sec

16 (1 of 1)
F/22 at 13.0 sec

22 (1 of 1)

Remember you can post your pictures at the bottom of this post or on the DigitalCamFan Facebook. If you have any questions please refer to the guidelines, if you have no questions jump right in any time!



Related posts:

Assignment #1 - Metering off a Gray Card
Learn By Doing - The color green
Learn by Doing - Metering for green -2/3

Discussion

No comments yet.

Post a Comment

CommentLuv badge