Cinematic Night Wreck Diving: Hacking My Underwater Lighting Setup

I’m prepping to film a wreck dive at night. I love night diving—it is, by far, my favorite way to hit the water. I’ve logged more than 100 night dives, and the thrill of rolling backward into the pitch black never gets old.

I haven't filmed underwater at night with my new camera rig yet, so I found it fitting to custom-build my setup for maximum cinematic views. My camera has incredible low-light capability. Because I can tap into a 12,800 base ISO, I don't need the massive, overpowering lights that most other cameras require to get proper exposure.

I’ve never been one to follow conventional wisdom. Instead, I study it, mix it with everything I’ve learned over the last 20 years of editing and filming, and warp it into something my own. That leads me to practically experiment on every single dive. I push my settings and setups just a little bit more each time, ensuring I still get commercially viable footage if the experiment doesn't go perfectly, but knowing that if it does work, my portfolio levels up.

The Offset Lighting Strategy

To get a true cinematic look, I am using a two-light setup. I would love to eventually drop a backlight somewhere on the wreck, but that experimental setup will have to wait. For now, I intend to use the flashlights of other divers swimming in my background as practical backlights.

For my two front lights, rather than using identical arm lengths like a standard setup, I am offsetting the arms to create a 3D effect.

• The Left Arm (Key Light): I am using a 16-inch arm, which positions the light about 18 inches to the left of my lens. I will angle this light slightly outward to avoid lighting up the particulate floating in the water between the lens and the subject (preventing backscatter). I’m running this light at about 75% maximum brightness.

• The Right Arm (Fill Light): I am using a 12-inch arm, giving me close to 14 inches of distance from the lens on the right side. I’ll run this one at 50% brightness.

Altogether, my rig will be close to 3 feet wide.

I am essentially creating a key light that overlaps a fill light. This will give me bright, beautiful highlights right in the middle of the subject, with a brighter falloff to the left and a dim, shadowed falloff wrapping around the right. It creates depth. If I frame the subject to the left side of my screen, I can intensify that 3D effect even more.

The best part about controlling your own lighting is that if you nail the exposure at the exact right distance, you lock in perfect white balance. That makes color grading the footage in post-production absolutely magnificent. If the visibility is hitting 60-plus feet, I should be able to pull some razor-sharp, beautiful footage out of the dark.

The Challenges of Lighting a Wreck

There is one massive caveat: filming large shipwrecks underwater with only two lights is extremely challenging because water absorbs light incredibly fast. To counter this, I have a specific shot list:

1. The Wide Shots: I will attempt a massive, wide-angle shot from the front or back of the boat, using the ambient darkness to frame the silhouette.

2. The Perimeter: I’ll search for large schools of fish swimming around the outer edges of the wreck. Hitting silver scales with the offset lights usually looks incredible.

3. The Penetration: I’ll try to film a few shots from inside the wreck. The physical challenge here is that with a 3-foot-wide camera rig, I will have to twist the camera to strange angles just to fit through the doors, all while watching my lights to ensure I don't get hung up on jagged metal.

Waking Up the Night Shift

I am excited about this dive. Night diving puts me in a great mood for weeks just thinking about it.

I have a feeling this specific footage is going to help generate a lot of attraction for night diving these wrecks. If all goes well, the Pensacola night diving market will ramp up, and the local dive community will have the time of their lives exploring these wrecks in ways they never have before.

My favorite thing about the ocean at night is the entirely different cast of animals that come out. It is a literal night-and-day comparison to daytime diving. Nocturnal critters tend to be incredibly odd, strangely unique, and absolutely pique the beauty scales for anyone interested in marine life.

I can't wait to drop in.