I was talking with a fellow 60D owner over on my
Facebook page and she had some questions related to lenses and settings for capturing bokeh ...also known as the buttery smooth background blur that makes subjects "pop". I thought it would be beneficial to share our conversation...
Samantha's Question: I have a question...are there any lenses that are better than others for taking bokeh photos? I have an 18-135mm (and a 55-250mm). Also what settings should I set when shooting bokeh? Thank you!
Moose's Answer: Yep, the lenses you speak of are capable of obtaining apertures between f/1.4 and f/2.8. Lower f-numbers allow you to isolate subjects against buttery smooth backgrounds/foregrounds...also known as bokeh.
If we look at your current lenses, the 18-135mm can only go down to f/3.5 at 18mm and f/5.6 at 135mm. Your 55-250mm can only go down to f/4 at 55mm and f/5.6 at 250mm.
The most popular starter lens for "bokeh" type shots is the "nifty fifty"
Canon 50mm f/1.8 II. As you might of guessed, this lens will allow you to go all the way down to f/1.8.
As for settings, just enable Aperture priority (Av on the mode dial) and select the lowest available f-number using the smaller command dial. Happy shooting! :)
Comments
What types of subjects or scenes do you plan on filming? You might look at the same Canon 50mm f/1.8 lens mentioned above. It'll allow you to capture an extremely shallow depth of field which will give your movies that true indie film look.
Also, make sure your subject is farther away from the background. Most people say to move the camera further out and zoom in (zoom lenses only, of course) when that effectively does nothing but change the distance of your camera to subject.
To see how moving the subject, instead of the camera works, try holding one finger in front of your eyes, close one eye and focus on your finger. As you move it farther away from the background and then closer, what happens? When the subject (finger) is closer to the background, you will have more or less both in focus but, as you move your subject farther from the background yet, keeping your camera in the same position you effectively create a better looking bokeh just by moving your subject either a few inches or feet, depending what lens you're using.
Wider lenses allow for less options for bokeh whereas longer, faster lenses can help achieve that nice DOF.