To create a bokeh effect (bokeh), lenses with low f-stops are used.
The smaller the f-stop number, the wider the aperture, which leads to a narrower depth of field and greater blur in the background and foreground. For example, an f/1.8 lens blurs the background more than an f/3.5 lens.
To achieve maximum bokeh effect, lenses with a stop value of 1.2 or 1.4 are recommended.
Additionally, lenses with a focal length of 70mm and above can also help create greater bokeh.
The specific f-stop value chosen will depend on the desired effect and shooting situation.