To create a bokeh effect you only need to find a bright light source. Even during the day, you can also create this bokeh effect, as long as those are the conditions. It is recommended to use a prime lens and pay attention to the main subject being far enough away from the bokeh light. Set the camera aperture as large as possible, because the narrower the aperture you use, the smaller the bokeh light will be. So, where should you focus?
1. Background
To create a quite different bokeh photo effect, you can focus your photo on the background, while in the front you can enter light at a very close distance to you so that a bokeh effect is formed on the front of the photo.
EOS 5D Mark III/ FL: 70mm/ Aperture Priority AE (f/4, 1/25 sec, EV+0.3)/ ISO 250/ WB: Daylight
Source : https://snapshot.canon-asia.com/
2. Foreground
You can also focus your camera on the foreground to get bokeh in the background as long as there is bright enough light to create a bokeh effect.
EOS 5D Mark III/ FL: 200mm/ Aperture Priority AE (f/2.8, 1/640 sec, EV +0.3)/ ISO 400/ WB: 4,500K
Source : https://snapshot.canon-asia.com/
