Shooting Big Animals Underwater: Everything You Need to Know

I am a well-known macro fanboy; I adore shooting the smallest animals in the sea. However, there is a particular kind of madness that takes hold the first time a massive animal, like a whale shark, swims close by. It is enormous, it is impossibly graceful, and it will make your heart beat like nothing else. To capture great shots of big animals is to capture that exact feeling.

Shooting large marine life is a specialized skill. It can be technically challenging due to constant movement and ever-shifting light, but it provides images that will leave everyone you know absolutely blown away. If you can master big animal photography, you will truly transform your portfolio into something magical.

This guide covers the gear, the optics, the techniques, and the different styles you need to master if big animal photography is where you want your diving to take you.

Why Wide Angle Is Non Negotiable

Wide-angle photography is the foundation of shooting large marine life, and the reason isn’t just aesthetic—it’s physics. Water reduces visibility and introduces backscatter. Every extra meter (3.3 feet) of water between your lens and your subject adds particles, reduces contrast, flattens color, and introduces haze. The fundamental rule that every serious underwater photographer eventually internalizes is this: get close, then get closer. A wide-angle lens allows you to fill the frame with a whale shark, a manta ray, or a tiger shark while staying near enough to the subject to minimize the water column between you. The resulting images possess a clarity, color, and three-dimensional quality that telephoto shots simply cannot achieve in most ocean conditions.

However, not all wide-angle lenses are created equal. There are specific optics you should choose depending on the type of big-animal encounter you are shooting.

Fisheye Lenses: The Ultra-Wide Perspective

A fisheye lens gives you an extreme field of view—typically around 180° diagonal on a full-frame sensor. The trade-off is the introduction of barrel distortion, which curves straight lines outward. In underwater photography, however, that distortion is often your friend rather than your enemy. For large animals, a fisheye allows you to get genuinely close to a subject and still capture its full body, its context, and the surrounding water in a single frame.

The reason many people reach for a fisheye for big animals is simple: it’s the one they already own. For most of us, it is the first lens we buy for wide-angle shooting. However, fisheye lenses are so wide that to get a high-quality portrait of a large animal, you need a "pass-by" within a few feet (approx. 1 meter).

While they can take incredible shots, they aren't always my first choice for big animals. Often, you’ll find the animal looks too small in the frame because wild subjects don’t usually pass that close. They are, however, fantastic for scenarios like shark feeds; in those instances, the sharks are often barging right into you, and a fisheye allows you to capture the wider context of a very active, crowded scene.

For more "wild" encounters—such as manta ray dives where there is no feeding involved—I would move toward the next options on the list.

Rectilinear Wide Angle Lenses

A rectilinear wide-angle lens provides a broad field of view without the barrel distortion of a fisheye; straight lines stay straight. This matters enormously when you want to render an animal’s form accurately. For years, these have been the preferred choice for natural history and National Geographic photographers who demand the authentic look that comes from a distortion-free frame.

For full-frame cameras, the 16–35mm range is the sweet spot. The Sony 16–35mm f/2.8 GM is exceptional when placed behind the right port. The Nikon Z 14–24mm f/2.8 is a remarkable lens that performs brilliantly underwater and has become increasingly popular as Nikon shooters migrate to the Z system. Canon’s RF 15–35mm f/2.8 is similarly capable.

The versatility of a zoom lens in this range is a genuine game-changer when shooting large animals. It allows you to fill the frame with your subject while maintaining maximum image quality, as you won’t need to crop heavily during post-processing.

However, rectilinear lenses require a very large dome port—often 230mm (9 inches) or larger—to maintain image sharpness in the corners. These massive domes are cumbersome in the water and tricky to swim with at speed. Because of these physical limitations, the rise of water-contact optics in recent years has led to a significant decline in the use of traditional rectilinear lenses underwater.

The Game Changer: Water-Contact Optics

If there is one development in underwater photography over the last decade that has genuinely redefined what is possible for traveling and professional shooters alike, it is water-contact optics. These are essentially specialized "lens-converters" that replace traditional dome ports. They optimize performance by using multiple glass elements to correct for the specific optical distortions caused by the transition from air to water.

The Nauticam Wide Angle Conversion Port (WACP) is the flagship of this system. The WACP-1 was designed for use with longer focal length lenses—typically in the 28–70mm range—and converts them into extreme wide-angle optics. This setup provides outstanding corner sharpness and minimal chromatic aberration while maintaining the ability to zoom. The optical quality is genuinely remarkable; images shot through a WACP possess a clarity and edge-to-edge sharpness that is difficult to achieve even with the best wide-angle lenses behind conventional domes.

The WACP-C is a more compact and lightweight version designed specifically for smaller mirrorless systems. While it offers excellent performance and is much easier to travel with, it doesn't quite reach the professional ceiling of the original WACP-1.

The WACP-1 is absolutely the first piece of glass I would reach for when planning a "big animal" expedition. It captures sharks, mantas, and whales in sharper detail than any other optic on the market. Its focal length provides a 130° field of view, which is the "sweet spot" for almost all large marine life encounters. The combination of versatility and peerless image quality makes it an incredible tool for the serious shooter.

Ambient Light Photography

For many big-animal encounters—particularly with whale sharks, manta rays, and dolphins in shallow tropical water—ambient light is the way to go. There are two primary reasons for this. First, in these natural encounters, the animals are usually more than 2 meters (6+ feet) away, rendering strobes effectively useless. Second, these shoots often involve fast movement from the photographer; to keep up, you need minimal drag, making it far better to ditch the strobes and arms entirely.

Ambient light shooting for large subjects means prioritizing shutter speed to freeze movement. A whale shark traveling at even a gentle pace covers distance quickly, and motion blur is a constant risk. In clear tropical water with good surface light, you can work at ISO 400 to 800 and achieve shutter speeds in the 1/500 to 1/1000 range to freeze the subject cleanly. In murkier conditions or on deeper dives, your ISO will need to climb. Since you are generally not looking for corner-to-edge detail in these types of action shots, you can also open up your aperture to allow more light in, further enabling those fast shutter speeds.

In these scenarios, I often set my camera to f/8 with Auto ISO and a shutter speed of 1/1250, using an exposure compensation of -1. Because you are constantly moving, it is nearly impossible to manually adjust settings every time you change direction from shooting into the light to shooting with the light.

Of course, I always test this before the action starts. I take a test shot toward the sun and another away from the sun as soon as I get into the water. Once I’m happy with the baseline the camera is choosing, I adjust my compensation accordingly and focus entirely on the animal.

Using Strobes with Large Animals

The assumption that strobes are irrelevant for big-animal photography isn't quite accurate, even if ambient light is the more common approach. In the right conditions—particularly at closer ranges and in environments with reasonable visibility—strobes add the color saturation, shadow detail, and three-dimensional pop that ambient light alone cannot provide.

When setting up, position your strobes wide and slightly behind the handles of your dome port. I prefer to keep them a bit higher rather than level with the port; this is because these encounters often happen over sandy bottoms, and you want to avoid lighting the seabed and causing "hot spots" in the lower frame.

Your strobe power will be dictated by your camera settings and the amount of available ambient light. When I use strobes, I prefer to take full manual control of the camera. I’ll find a spot with a compelling background—such as a vibrant reef or dancing sunbeams—and expose specifically for that background. Then, I wait for a high-quality "pass-by." This strategy works best during shark feeds or baited encounters, where you can carve out a specific area to work within and rely on frequent passes from the animals.

The Power of the Silhouette

Silhouette photography of large marine animals deserves its own consideration because the technique, when executed well, produces images of extraordinary impact. A manta ray silhouetted against a bright, sun-drenched surface—its wingspan fully extended and the intricate patterning of its underside rendered as pure shadow against white light—does not need color or detail to communicate power. The shape alone carries the entire narrative.

The technical approach is straightforward, but precision matters. You must expose for the brightest area of the frame—typically the surface or the sun itself—and allow the animal to fall to black. The exposure you dial in will depend on the surface brightness relative to your subject; bracketing a stop on either side of your metered exposure will give you the best options to work with in post-processing.

Positioning is critical. You want the animal directly between you and the light source, ideally situated so its full silhouette is clear of any background clutter or reef structures. Aim for a shooting angle that captures the animal's most recognizable and dramatic profile.

Once you have dialed in your exposure for a perfect silhouette, you can also experiment by adding fill strobe light to the animal. This creates an entirely different type of image, but the beauty of this setup is its simplicity: all you need to do is toggle your strobes on or off to switch between a pure silhouette and a lit subject.

Behavioral Photography: Capturing the Moment

The most memorable big-animal images are not always the technically perfect frames. They are the ones that capture something true about the animal—a specific behavior, a fleeting moment, or a unique relationship with its environment. Behavioral photography requires patience and knowledge above all else. You need to understand the subjects you are photographing well enough to recognize when something interesting is about to happen and be in position before it does.

For example, manta feeding behavior—where the rays spiral through the water column in coordinated loops through concentrations of plankton—produces extraordinary photographic opportunities. However, you can only capture those "cyclone" shots if you understand the pattern well enough to anticipate where the rays will turn.

The discipline here lies in logging time in the water with these animals, learning their rhythms, and being willing to put the camera down occasionally to simply watch and learn. The more you understand the animal, the better your images will become.

The Freediving Advantage

There is a growing consensus among serious big-animal photographers that some of the best encounters happen not on scuba, but on breath-hold. The argument has real substance: the noise and bubble production of scuba equipment is a genuine factor in how some large animals respond to a diver’s presence. Whale sharks, in particular, can become conditioned to associate the sound of regulators with unwanted attention after encountering boats and divers across their ranges.

Freediving removes the noise, allows you to approach from the surface without descent bubbles, and positions you naturally in the upper water column where many big-animal encounters happen—typically in the top 10 to 15 meters (33 to 50 feet) where the light is strongest and the animals are most active.

The trade-off, of course, is your breath-hold time and the physical fitness required to use it effectively. For photographers willing to invest in that training, the rewards in terms of animal access and intimate behavior are significant.

Gear in the Water: Practical Considerations

A brief note on practical rigging: the best optics in the world are useless if your setup is unwieldy. Buoyancy is your first consideration. A properly balanced rig—either neutral or very slightly negative—can be held steadily with minimal effort, allowing you to redirect quickly when an animal changes course.

Float arms and buoyancy collars on ports are well worth the investment. A rig that pulls your hands down while you are trying to track a manta feeding spiral is a rig that is costing you frames. You want the camera to feel like an extension of your own movement, not an anchor you’re fighting against.

Where to Go: The Big Animal Hotspots

There are a handful of key locations that generate world-class images year after year. These trips are highly seasonal and species-specific, so you generally need to dedicate an entire trip to a single event.

Keep in mind that the reality of these expeditions often involves sitting on a small boat for days with little to no action, followed by five minutes of pure magic where you have to get the shot. To maximize your chances, always book for the peak of the season; avoid early or late-season trips, as the likelihood of quality encounters drops significantly.

Based on my own travels, here are the top destinations for specific encounters:

• Tiger Sharks: Tiger Beach, Bahamas. Hands down the best location on Earth and significantly more productive than the newer "Tiger Zoo" in the Maldives.

• Whale Sharks: The Maldives. Excellent for both daytime snorkeling and dramatic night encounters.

• Manta Rays: The Maldives. Still arguably the best overall location for both day and night events.

• Sailfish: Magdalena Bay, Mexico. Highly seasonal but unparalleled for action.

• Sperm Whales: Dominica. A premier location, but strictly seasonal and permit-dependent.

• Silky Sharks: Cuba. Fantastic for surface shooting and high-energy encounters.

Conclusion

Shooting big animals underwater is a discipline that rewards every investment you make—whether that is in high-end glass, hours logged in the water, or a deeper understanding of the creatures you are photographing. Your choice of optics, from a fisheye behind a dome to a rectilinear lens paired with a Nauticam WACP, will shape the style and aesthetic of your work. The techniques you develop—ambient silhouette work, behavioral photography, and patient observation—will determine the depth and meaning of those frames.

More than any piece of equipment, however, big-animal photography is built on diving skill and respect. The animals that produce the most extraordinary images are those that are comfortable in your presence. Earning that comfort takes time, patience, and an approach that always prioritizes the animal’s well-being over the photograph.

Get that right, and the images will follow.