Question 1

What is the depth of field of the Canon RF 16mm F2.8 STM at f/2.8 and 3 m?

Accepted Answer

At 16mm, f/2.8 and focus at 3 m, acceptable sharpness runs from 1.55 to 47.4 m — about 4583 cm in total.

Question 2

What is the hyperfocal distance of the Canon RF 16mm F2.8 STM?

Accepted Answer

At 16mm and f/8 on a Full Frame sensor the hyperfocal distance is about 1.13 m. Focus there and everything from 0.56 m to infinity is sharp.

Question 3

How do I get more background blur with the Canon RF 16mm F2.8 STM?

Accepted Answer

Open the aperture to f/2.8, move closer to your subject and increase the distance between subject and background. You can check the result in the calculator above.

Aperture	Hyperfocal	1 m	2 m	3 m	5 m	10 m
f/2.8	3.19 m	0.76–1.45	1.23–5.30	1.55–47.4	1.95–∞	2.42–∞
f/4	2.23 m	0.69–1.79	1.06–17.8	1.28–∞	1.55–∞	1.83–∞
f/5.6	1.60 m	0.62–2.60	0.89–∞	1.05–∞	1.22–∞	1.38–∞
f/8	1.13 m	0.53–7.96	0.72–∞	0.82–∞	0.92–∞	1.01–∞
f/11	0.82 m	0.46–∞	0.59–∞	0.65–∞	0.71–∞	0.76–∞
f/16	0.57 m	0.37–∞	0.45–∞	0.48–∞	0.51–∞	0.54–∞
f/22	0.42 m	0.30–∞	0.35–∞	0.37–∞	0.39–∞	0.40–∞

Canon RF 16mm F2.8 STM — depth of field calculator

Key numbers

Depth of field table

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