To effectively illuminate an object in limited visibility, where should you point your dive light?

Pointing your dive light above or to the side of the object is the best approach when illuminating in limited visibility conditions. This method takes advantage of the way light interacts with particles in the water, such as silt or plankton. When the light is directed directly at the object, the illumination can create glare or reflections that may obscure the view of the object itself.

By positioning the light at an angle — either above or to the side — you minimize direct glare and allow the light to scatter more evenly over the surface of the object. This lighting technique enhances visibility without leading to excessive backscatter, enabling you to see details more clearly. Scattering light from the side or above can help reveal the object while mitigating the impact of suspended particles that can diminish clarity when lights are pointed directly at the subject.

In contrast, shining the light directly at the object can wash out colors and other details, while pointing it below the object does not help in illuminating what you are trying to see. Lighting in front of the object could cause similar issues with glare and backscatter, hindering visibility. Thus, directing the light above or to the side is the most effective strategy for optimal visibility in limited conditions.