If you do want some spill, make sure to run a few tests with various lenses, as chromatic aberration may occur around the edges of your subject due to the abundance of light. This depends on your personal preference and intention, of course – you may want some spill on your subject for a certain look or effect, or you may not. Once you have flagged your lights, you need to position your subject far enough away from the background (and from the background lights) that any light spillage won’t touch your subject. If you don’t flag (block) your background lights, your subject will end up with a halo effect and look very backlit. It also blocks light from seeping through to places where you do not want it. You can use anything black to flag your lights: the black side of a reflector, black cardboard sheets, or black foam core.īlack does not bounce light instead, it absorbs light. Mistake #2: Not enough subject-background separationīecause the background lights are so much brighter than the foreground light, you need to separate them from the main subject.
When both the background and main lights are on, your meter should still give you f/8 on the subject, because you are metering the light that falls on your subject and not on the background. Note: You need to meter foreground and background lights separately, so that when metering for the main light (on the subject) you would turn the background lights off and vice versa. For example, if you want to photograph your subject at f/8, set your background lights to two stops brighter, so your meter reads f/16 on the background. The background must be lit with approximately two stops more light than the subject. So here are three rookie mistakes to avoid when trying to achieve 100% pure-white background photography: Mistake #1: The background is not lit properly But this tutorial will show you the process clearly. With people, to do this to scale, you need to have massive octaboxes and flags. It is easier doing this with a small-scale subject, as the lights are huge in comparison. I have replicated the setup with my little model, Sven (Kristoff’s beloved reindeer in the movie Frozen). That’s not the only issue, though you’d see unwanted shadows everywhere, too. The best possible result would be an off-white background after you have done some edits. Using the method described above would result in a photo with either a gray, dull, or muddy-toned background.
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