How To Change Aputure On A Canon Eos R

How To Articles

As a proud owner of a Canon EOS R, I have found that understanding how to change the aperture settings can greatly enhance the control I have over my photography. The ability to adjust the aperture allows for creative control over depth of field and exposure, which are essential elements in creating captivating images. Let’s dive into the process of changing the aperture on the Canon EOS R and explore the impact it can have on your photography.

Locating the Aperture Control

The Canon EOS R features a control ring on the RF lenses, which provides a seamless way to change the aperture. If you are using EF or EF-S lenses with the Canon EOS R, the aperture can be adjusted using the dedicated control dial located on the camera body.

Using the Control Ring on RF Lenses

When using an RF lens, the control ring is conveniently located on the lens itself. By default, the control ring is set to adjust the aperture. However, this can be customized in the camera settings.

Adjusting Aperture with EF or EF-S Lenses

If you are using EF or EF-S lenses, you can change the aperture using the control dial on the camera. This dial is intuitively placed near the shutter button, making it easily accessible while shooting.

Controlling Aperture in Manual Mode

In manual mode, adjusting the aperture is a key part of the exposure triangle, which also includes shutter speed and ISO. By controlling the aperture, you can determine the amount of light that enters the camera and achieve the desired depth of field.

Impact on Image Quality

The aperture setting plays a pivotal role in the overall quality of your photographs. A wide aperture (lower f-stop number) can create a shallow depth of field, wonderfully isolating your subject from the background. On the other hand, a narrow aperture (higher f-stop number) can render the entire scene in sharp focus. Understanding how to manipulate the aperture empowers you to convey your artistic vision through your images.

Experimenting with Aperture

I have personally found that experimenting with different aperture settings has greatly expanded my creative horizons. By playing with apertures, I have been able to capture stunning portraits with beautifully blurred backgrounds as well as breathtaking landscapes with crisp details throughout the frame. It’s truly amazing how a simple adjustment can completely transform the mood and impact of an image.


Mastering the art of changing the aperture settings on the Canon EOS R opens up a world of creative possibilities. Whether you are capturing everyday moments or embarking on professional photo shoots, the ability to control the aperture gives you the freedom to express your unique perspective through photography.