Lewis McGregor from Shutterstock Tutorials recently shared a video demonstrating how to capture the perfect light for outdoor interviews under direct sun, using a range of modifiers.
Below we break down the three main modifiers he mentioned—blocking, diffusing, and reflecting—and explain why, in most cases, diffusing combined with a low‑level ND filter is the most reliable approach.
Blocking the Light
Blocking involves using a flag or any opaque material to cut down on the incoming light. Flags, foam board, or even a large piece of cardboard can be held in front of the subject. The problem is that blocking removes all light, often leaving the subject in shade while the background remains exposed to full sunlight. This creates a stark contrast where the subject is under‑exposed and the background over‑exposed. Adding extra light to the subject is possible, but it requires a substantial light source and can be intrusive for the interviewee.
Diffusing the Light
Diffusion is our preferred method for dealing with harsh, direct sunlight. By placing a scrim, a diffusion frame, or a collapsible diffuser above the subject—at an angle that keeps it stable in wind—you soften the light, eliminate hotspots, and give the interviewee a comfortable, even illumination. Typical diffusion strengths range from 1/4 to 2 stops; common choices include 1/2 or 1 full stop diffusers. If the sun shines from one side, a small fill light or a reflector can gently fill shadows without overpowering the scene.
Reflecting the Light
Reflecting light back onto the subject—using a reflector, bounce board, or foam board—might sound counterintuitive. It increases exposure on the subject’s side opposite the sun, potentially exacerbating hot spots and creating a harder, less natural look. While you can control the intensity with a lower ISO or exposure compensation, it rarely offers the soft, even quality that diffusion provides.
Adding ND or VND Filters
ND (neutral density) or VND (variable ND) filters can reduce the amount of light hitting the sensor, allowing you to keep correct exposure in bright conditions. However, they do not soften the light or prevent hotspots. Combining a low‑density filter with a diffuser often yields the best results: the diffuser tames the light, and the filter keeps exposure levels in check, enabling you to use a modest fill light if needed.
For more in‑depth lighting tutorials, visit our Photography Lighting section. Watch additional HDSLR and video techniques on our dedicated HDSLR channel here on LensVid.
Iddo Genuth is the founder and chief editor of LensVid.com. He has worked as a technology reporter for international publications since the late 1990s and has covered photography since 2009. Iddo also co‑founds a production company that specializes in commercial food and product visual content.