A few words about lighting. Today, two lighting types for you:
Broad lighting—you are mainly lighting the half of the face that is largest to you )turned toward you).
Short lighting—you are mainly lighting the half of the face that is smallest to you (turned away from you).
There are many other types of lighting (Split, Rembrandt, Butterfly, Loop, etc), and they merge into each other rather than being cleanly split (e.g. you could make the case that the second picture is really more Rembrandt Lighting); but these two will do for now.
The effect: Broad Lighting makes a face look broader. Short (or narrow, as I like to think of it as) Lighting makes the face look narrower.
You have heard, perhaps, of the Inverse Square Law. I hope you have. Because it is rather important in photography.
The Inverse Square Law says that the intensity of light shining on an object from a light source decreases with the square of the distance of the light source to that object.
You can see what this means for us in practice: dark backgrounds if we aim a light forward from where we are (say, a pop-up flash). If the background is ten times farther away than your subject, it gets 100 times less light. Solution: do not have the light where your camera is. Or bounce. Or use several flashes. Or use ambient light also (“dragging the shutter”).
Important note: It is important to realize that this applies to the distance between light emitter and subject. Not the distance between you and the subject! (If you find this hard to visualize, consider this: when you back away while looking at a Caucasian, he or she becomes a smaller Caucasian to you, not an African-American).
Other than dark backgrounds, what else does the inverse square law mean to you in practice? This, for instance:
- If you move a studio light twice as far from a subject, you lose two stops of light (2 squared = 4, and two stops equals a factor of four).
- If you move it 41% farther, you lose just one stop, since 1.41 is the square root of 2.
- To get one stop more light, move the light closer by 30%, to 70% of its previous distance, since 0.707 is the square root of 0.5).
So knowing a little math, geometry and physics comes in handy. I speak not as an engineer, but as a photographer. I can move a studio light into the right position to get a stop more, or a stop less, light without metering.
And now, so can you. You are welcome.
In Montréal. Last night!
Montreal, 8 Oct 2010
Taken at 800 ISO, 1/30th sec, f/1.7.
Because of the fast (f/1.7) 20mm lens on the Lunix camera I was able to shoot at 800 ISO. Had I had a regular point and shoot, I would have had to shoot at a higher ISO speed, much higher.
Here’s another one:
Montreal at night, 8 Oct 2010
So the tips for today are:
- Use a tripod if possible.
- If not, then open your aperture as wide as you can.
- And go to a wide angle if you can.
- Use exposure compensation if needed, usually -1 to -2 stop. Ensure the black sky is black.
- Go to a high enough ISO so you get a reasonable shutter speed.
- Hold still.
- Shoot multiple times.
- Select the best shots!
And above all: bring the camera. And have fun.
Have you ever thought, or said, the following?
Waah. It’s raining, I can’t take pictures.
There’s no sun, I can’t take pictures.
Don’t you believe it. A cloudy, rainy day is better than a sunny day in so many ways.
- No harsh shadows to wrinkle clothes (or faces)
- No squinting eyes
- Saturated colour
- No impossible contrast to handle
- Those great raindrops
The other day, I took a few snaps during the Henry’s Creative Urban Photography walkaround. Here’s a few of them: are those saturated colours not beautiful?
Leaf in the rain
Flower in the rain
Turning Leaves in the rain
Oakville in the rain
Oakville plants in the rain
A rainy, overcast, dreary day: provided you expose properly (remember exposure compensation. Hint: it’ll likely be “minus”), there’s really nothing quite like it.
There is just one more spot open for the all-day Creative Flash course in Mono, Ontario, an hour north of Toronto, Saturday.
Using a professional model and pro lighting equipment on Canon, Nikon and other camera brands, Joseph Marranca and I will teach our students to take shots not like this:
But instead like this:
You see how important light is? That’s what these workshops are about, to make users comfortable with the technical and creative aspects of light,
And they are about going home with portfolio shots.
And about having fun with cameras, all day!