JustBeginning
Beginner's guide

So you're getting into underwater photography

Underwater photography sits at the intersection of diving and visual art — and the gear can look intimidating at first. The good news: you can start capturing compelling images on your first few dives with the right housing and a little patience. Here's exactly what to buy, what to skip, and how to think about it.

By Colin B. · Published June 3, 2026 · Last reviewed June 3, 2026
a woman scubas in the ocean with a camera

Photo by NEOM on Unsplash

The 60-second version

If you only buy 3 things to start:

  1. Sea & Sea MDX-RX100 VII Housing — Sea & Sea MDX housing for Sony RX100 VII — the pairing dive instructors recommend for beginners.
  2. Sea & Sea YS-03 Solis Strobe — Sea & Sea YS-03 Solis strobe — compact, affordable, and transforms murky water into clear vivid color.
  3. Sony RX100 VII — Sony RX100 VII — best compact camera for underwater use, pairs with widely available housings.
Budget total
$300
Typical total
$900
Entry-level with a compact camera and housing runs $300–600. Once you add strobes and a mirrorless rig, $1,500–3,000 is realistic. Buy the housing before the camera — the housing decision drives everything else.
At a glance

Our top pick in each category

The fastest path through this guide — each best-starter pick by category. Scroll for the budget and upgrade alternatives.

CategoryTop pickPriceWhere to buy
Camera HousingsSea & SeaSea & Sea MDX-RX100 VII Housing$$$ See on Amazon →
Compact CamerasSonySony RX100 VII$$$ See on Amazon →
StrobesSea & SeaSea & Sea YS-03 Solis Strobe$$$ See on Amazon →
Tray & Arm SystemsIkeliteIkelite AF35 Tray with Flex Arm Mount$$ See on Amazon →
O-Ring & Maintenance KitChristolubeChristolube MCG 111 Silicone Grease$ See on Amazon →
Dive LightsBigBlueBigBlue AL1200NP Dive Light$$ See on Amazon →
Before you buy anything

A few things worth knowing first

Buy the housing before you buy the camera. The housing is the limiting factor — not every camera fits every housing, and housing availability varies by camera model. Pick a housing you can actually find, then buy the camera it fits.

Strobes aren't optional past 15 feet. Water absorbs red and orange light quickly — anything below 15 feet looks blue-green without artificial light. A single small strobe will do more for your photos than any camera upgrade.

Get at least 20 dives before you add photography. Managing a camera housing underwater adds significant cognitive load. You'll be a safer diver and a better photographer if you're comfortable with your buoyancy first.

The gear

What you actually need

person holding underwater camera

Photo by Jakob Owens on Unsplash

Camera Housings

The housing is the most consequential purchase in underwater photography — it determines which camera you use, which ports and lenses are available, and how much you can expand over time. Compact camera housings ($200–600) work with smaller sensors and fixed lenses. Mirrorless housings ($800–2,500+) open up interchangeable lenses but cost significantly more. For a first rig, a compact housing is the right call: it's lighter, easier to flood-check, and pairs with cameras that auto-focus well in low light. The housing brand determines your upgrade path — Sea & Sea and Ikelite have wide ecosystems.

Camera Housings — what's the difference?

A few common shapes, each making a different trade.

Compact camera housing

Fixed lens, simpler, lighter. Best for first two years.

Depth rating
40–60m typical
Weight
300–500g
Lens options
Fixed

Best for Beginners, travel divers, snorkelers

Tradeoff No lens swaps — one focal length per dive

↓ See our pick
Mirrorless / DSLR housing

Interchangeable lenses, larger sensor, pro-level output.

Depth rating
60–100m typical
Weight
600–1,200g
Lens options
Interchangeable via ports

Best for Photographers with 50+ dives, wide-angle or macro specialists

Tradeoff Heavier rig, much higher cost, more flood-check steps

↓ See our pick
Best starter
Sea & Sea

Sea & Sea MDX-RX100 VII Housing

$$$

Sea & Sea is the most trusted name in underwater housings, and the MDX series for the Sony RX100 VII is the pairing most dive instructors recommend to beginners. Lock lever mechanism, all controls accessible, rated to 40 meters. It's the no-regret entry into serious underwater shooting.

What we like

  • Sea & Sea's reputation is the gold standard for housing reliability
  • Lock lever gives clear flood warning before you enter the water
  • Rated to 40m — enough for recreational diving

What to know

  • Fits RX100 VII only — generation-specific, no cross-model compatibility
  • No port expansion — fixed lens, no interchangeable glass
See on Amazon →
Upgrade pick
Ikelite

Ikelite 200DL Underwater Housing for Sony a7 IV

$$$$

When you're ready to shoot mirrorless, the Ikelite 200DL opens up interchangeable lenses, dual strobe configurations, and full-frame Sony image quality. The clear polycarbonate body lets you spot moisture before it reaches the sensor, and the depth rating of 200 feet covers everything outside technical diving. A real commitment at $1,200+, but it grows with you for years.

What we like

  • Clear polycarbonate body lets you spot moisture instantly
  • 200-foot depth rating covers all recreational and most technical diving
  • Full Ikelite port system — wide angle, macro, zoom lenses all supported

What to know

  • Each lens port costs $200–400 extra on top of the housing
  • Full-frame Sony a7 IV body adds significant cost before the housing
See on Amazon →
gray and black underwater camera

Photo by Jakob Owens on Unsplash

Compact Cameras

For underwater photography, the camera choice is largely dictated by your housing. That said, within compact cameras, what matters most is fast autofocus (fish don't hold still), good high-ISO performance (water is dark), and a zoom range that covers both wide reef shots and tighter fish portraits. The Sony RX100 series dominates this category because it hits all three criteria and has the best housing ecosystem.

Best starter
Sony

Sony RX100 VII

$$$

The RX100 VII has the best autofocus of any compact camera — the same phase-detect AF system Sony puts in its pro mirrorless cameras, scaled down. For underwater, where your subject keeps moving and light is dim, fast reliable AF is the difference between a sharp fish and a blur. The best housing ecosystem makes it the obvious choice.

What we like

  • Phase-detect AF tracks moving fish reliably — a real differentiator
  • 1-inch sensor holds detail in dark water at high ISO
  • Best housing ecosystem of any compact camera

What to know

  • Expensive for a compact — $1,200+ body only
  • Battery life is short: bring two batteries for a full day of diving
See on Amazon →
Budget pick
Olympus

Olympus TG-6 Tough Camera

$$

The TG-6 is waterproof to 15 meters without any housing — a genuine no-setup entry into underwater photography. For snorkeling and shallow reef dives, it delivers. Housing options exist if you want to go deeper. The microscope mode produces unusually good macro shots for a compact this affordable.

What we like

  • Waterproof to 15m with no housing — dive-ready out of the box
  • Microscope mode captures impressive macro detail for the price
  • Shockproof, freezeproof — the toughest compact camera you can buy

What to know

  • Slower AF struggles with fast-moving fish
  • Small sensor struggles in low light at depth
See on Amazon →

Strobes

Water absorbs warm wavelengths (red, orange) rapidly with depth. By 10 meters, everything looks blue-green without artificial light. Strobes restore color and light your subject — they're not optional for any serious underwater work. A single strobe is a dramatic improvement over no strobe. A second strobe eliminates harsh shadows. Start with one; add the second when you've used the first for 20+ dives and are happy with the positioning.

Best starter
Sea & Sea

Sea & Sea YS-03 Solis Strobe

$$$

The YS-03 Solis is the entry strobe Sea & Sea makes for compact camera rigs. Wide beam angle covers reef shots, guide number 20 is plenty for most recreational depths, and it's lighter and more affordable than their pro units. If you're shooting a compact housing, this is the strobe that pairs with it.

What we like

  • Wide 100-degree beam covers compact camera field of view
  • Lighter and more affordable than pro Sea & Sea units
  • Compatible with most compact housing fiber optic ports

What to know

  • Guide number 20 — effective range under 1.5m, get close
  • No modeling light — you're estimating strobe position without a guide beam
See on Amazon →
Upgrade pick
Inon

Inon Z-330 Type 4 Strobe

$$$$

The Z-330 is what most serious amateur underwater photographers end up on. Guide number 33, wide angle diffuser included, built-in slave modes for dual-strobe setups, and a quality that holds up to years of diving. When you're ready to go dual-strobe with a mirrorless rig, this is the strobe to buy twice.

What we like

  • Guide number 33 — enough power for wide-angle reef shots at 18mm
  • Built-in S-TTL slave mode enables wireless dual-strobe without cables
  • Inon's reliability record among pro underwater photographers is excellent

What to know

  • Expensive — one strobe runs $500+, and you'll eventually want two
  • Heavier than compact strobes — adds noticeable drag in current
See on Amazon →
A scuba diver films underwater with specialized equipment.

Photo by Niklas Jonasson on Unsplash

Tray & Arm Systems

You can't hold a camera and a strobe in one hand — you need a tray (the handle system your camera attaches to) and arms (the articulated extensions your strobes mount on). Ball-and-socket arms let you position strobes anywhere. The goal for beginners is a simple single-strobe setup: tray + two arms + one strobe. Add a second arm and strobe later. Strobe arms need to be long enough (20–25cm each) to get light past the housing and avoid backscatter from particles in the water.

Best starter
Ikelite

Ikelite AF35 Tray with Flex Arm Mount

$$

Ikelite's AF35 tray is a complete ready-to-dive solution: the tray provides handles and balance, the flex arms extend to position a strobe away from the lens axis. All aluminum, built to survive saltwater, and every component is Ikelite-compatible out of the box. The most popular compact-camera tray in the US.

What we like

  • Complete tray and arm solution in one purchase
  • Aluminum build handles years of saltwater diving
  • Compatible with all Ikelite housings and strobes

What to know

  • Flex arms have less positioning range than ball-and-socket alternatives
  • Heavier than carbon fiber alternatives
See on Amazon →
Upgrade pick
UltraLight

UltraLight 8-Inch Double Ball Arm

$$$

UltraLight's double ball arm is the standard upgrade from flex arms. The ball-and-socket joints lock at any angle with a single twist — you can reposition your strobe underwater, one-handed, even with gloves. Aluminum construction, compact enough for travel, and compatible with any housing or strobe on the market.

What we like

  • Ball-and-socket locks at any angle — full positioning freedom
  • Adjust strobe position underwater, one-handed, even with gloves
  • Compatible with any housing tray or strobe system

What to know

  • Ball clamps can loosen with pressure changes — check before every entry
  • Need at least one arm per strobe — doubles cost for dual-strobe rigs
See on Amazon →
Camera components disassembled and in view.

Photo by Robert Schwarz on Unsplash

O-Ring & Maintenance Kit

Your housing o-rings are the only thing standing between your camera and a flooded rig. O-ring maintenance is the most important skill in underwater photography — more important than composition, more important than lighting. You need: the correct o-rings for your specific housing, silicone grease (not petroleum-based), a linting tool, and the discipline to inspect before every dive. Keep a complete spare o-ring set in your dive bag at all times. Housing manufacturers recommend replacing main o-rings annually if you dive more than 50 times a year.

Best starter
Christolube

Christolube MCG 111 Silicone Grease

$

Christolube MCG 111 is the silicone grease used by most housing manufacturers and dive professionals. Pure silicone, no petroleum byproducts that degrade rubber. A single tube lasts years and costs under $15. The correct answer to 'what grease should I use on my housing' regardless of brand.

What we like

  • Pure silicone — safe for all rubber o-ring materials
  • Industry standard used by Sea & Sea, Nauticam, Ikelite technicians
  • One tube lasts 2–3 years of regular use

What to know

  • Easy to over-apply — more is not better with o-ring grease
  • Not a complete kit — you still need the correct o-rings for your housing
See on Amazon →
Specialty pick
Scuba Choice

Scuba Choice Brass O-Ring Pick Set (3-Piece)

$

Removing an o-ring with a fingernail risks nicking the rubber, which turns into a leak at depth. These brass picks (three shapes for different o-ring profiles) are the correct tool for the job — designed specifically for dive equipment maintenance. Keep the set in your dive bag permanently.

What we like

  • Brass tips are hard enough to seat o-rings, soft enough to not scratch
  • Three profiles cover almost all dive housing o-ring geometries
  • Dive-specific tool — not a generic pick set

What to know

  • Overkill if you only dive 10x per year — fingernail works with care
  • Small enough to lose in a gear bag — clip it to something
See on Amazon →
a scuba in the water with a flashlight

Photo by Leo Talabardon on Unsplash

Dive Lights

A video light doubles as a focus assist light for your camera's autofocus in dark water. You don't need it on your first few dives, but by dive 10 you'll notice your camera hunting for focus in shaded crevices. A small continuous light mounted on your tray gives the AF system something to lock onto and adds fill light to your still shots. Don't confuse video lights with strobes — they're lower power continuous lights, not flash units. A 1,000-lumen light is plenty to start.

Best starter
BigBlue

BigBlue AL1200NP Dive Light

$$

1,200 lumens, 120-degree flood beam, runs 2.5 hours on high — the right specs for a compact camera focus/video light. BigBlue is the value brand most dive instructors recommend when students ask for an affordable but reliable light. Mounts to any standard tray via the included clamp.

What we like

  • 1,200-lumen flood beam covers compact camera field of view well
  • 2.5-hour runtime handles two back-to-back dives on one charge
  • Standard mount clamp included — fits any tray arm system

What to know

  • Not powerful enough for serious video work — video needs 3,000+ lumens
  • Proprietary charger — pack it, don't assume dive shops have spares
See on Amazon →
Upgrade pick
Kraken Sports

Kraken Sports Hydra 5000 WSRU Video Light

$$$

5,000 lumens in a wide-beam head designed for video and wide-angle still photography. When you're ready to light reef scenes rather than just assist autofocus, this is the jump that matters. Kraken's quality is well above its price, and the 5,000-lumen output produces real ambient-replacement lighting at depth.

What we like

  • 5,000-lumen output actually lights wide reef scenes, not just assists AF
  • Kraken's quality-to-price ratio beats most competitors at this lumen level
  • Multiple power modes let you balance battery life vs output

What to know

  • Heavy — adds noticeable buoyancy offset on one side of your tray
  • 1.5-hour runtime at full power — bring spare battery on 2-tank days
See on Amazon →
Going deeper

Your first 5 dives with a camera

Most new underwater photographers flood their housing, blow their buoyancy, or return with 200 blurry frames. Here's how to skip those lessons.

Read the guide →
Save your money

What you don't need yet

Beginners get pressured to buy a lot of stuff that doesn't help them play better. Here's what we'd skip on day one.

  • A mirrorless housing — You'll learn more about your weaknesses as an underwater photographer in the first 30 dives with a compact rig. The housing decision that matters is housing quality, not sensor size.
  • Dual strobes on your first rig — Learn to position one strobe well before you add a second. Most bad underwater photos with two strobes are caused by both being in the wrong position.
  • Wide-angle wet lenses — Wet lenses clip to your compact housing port and add reach — useful, but more useful once you've gotten good at basic framing and exposure.
  • A macro diopter — Diopters for closeup macro work are a legitimate specialty — but you should first figure out whether you prefer wide reef shots or macro before investing.
  • A video monitor — Topside-style external monitors don't work underwater. Your camera's LCD screen is your monitor. Budget dive monitors exist but aren't worth it in year one.
  • Photo editing software subscriptions — Lightroom is fine when you're ready for post-processing. Don't pay for it until you've got 100+ images worth editing.
First week

Your first seven days

A short, real plan to get from gear-on-doorstep to actually playing.

  1. Check your certification level — you'll want Open Water at minimum, Advanced Open Water for anything deeper than 18 meters. · Action
  2. Order your housing before your camera. Confirm the housing is in stock and matches your camera generation exactly. · Buy
  3. Practice the o-ring inspection routine out of water — open the housing, inspect the o-ring, apply a thin coat of grease, close and lock. Do it 10 times until it's automatic. · Action
  4. Lower your housing (empty, no camera) into a bucket of water. Watch for any bubbles. If you see any, find the leak before your camera goes inside. · Action
  5. Order your maintenance kit — you need the correct o-rings and grease for your specific housing before your first dive. · Buy
  6. Read the Underwater Photography Guide — the best free online resource for beginners. Their housing and strobe tutorials are the clearest available. · Learn
  7. On your first photo dive, pick one subject — a sea turtle, a coral head, a wrasse — and shoot 50 frames of just that. Focus on getting close, getting sharp, and getting light on the subject. · Action
FAQ

Common questions

How much does it cost to start underwater photography?

A realistic entry kit — compact camera, housing, one strobe, tray and arms — runs $900–1,500. You can get started with just the camera and housing for $500–700, add the strobe on your second or third dive trip. Don't budget less than $500 if you want anything that produces good results.

Do I need to be a certified diver?

Yes. PADI Open Water or equivalent is the minimum. You'll want Advanced Open Water for anything past 18 meters (where a lot of the interesting subjects are). Photography adds cognitive load — learn to dive comfortably first.

Can I start with my phone in a waterproof case?

Waterproof phone cases work for snorkeling and very shallow water. Below 5–10 meters, autofocus struggles, and there's no way to add strobes. They'll take mediocre photos and build bad habits. If you're serious, get a real compact camera housing.

What if my housing floods?

Act immediately: ascend at a safe rate, open the housing at the surface and rinse everything in fresh water. Salt water in a camera isn't automatically fatal if you flush it quickly and send it to a repair shop the same day. Prevention via o-ring maintenance is far better than recovery.

Do I really need strobes?

For anything below 5–8 feet, yes. Water absorbs red light quickly — photos without artificial light look cold, blue, and flat. A single strobe transforms the color and dimensionality of your shots more than any camera upgrade.

Should I get a compact camera or a mirrorless rig?

Start with a compact camera. The Sony RX100 VII plus a Sea & Sea housing is what most experienced underwater photographers recommend for beginners. Learn on compact, then decide whether you want to invest in a mirrorless system after 50+ dives. Many divers never make the switch — compact rigs produce excellent results.

Going further

Where to next

Related hobbies

Browse by category

Authoritative sources

  • Underwater Photography Guide — The single best free resource for beginners. Covers housings, strobes, technique, and post-processing in clear tutorials. Start here.
  • DPReview Underwater Forum — Active forum for gear questions. Search before posting — most housing compatibility questions have been answered.
  • Wetpixel — The dedicated community for underwater imaging. Long-running forum, image gallery, and technique articles. More technical than UWPhotographyGuide.
  • Scuba Diving Magazine — Photography section with gear reviews and technique articles oriented toward recreational divers. Good for housings-and-cameras coverage.
  • Alex Mustard Photography — Alex Mustard's site. He wrote the best-regarded underwater photography book for advanced amateurs. His free tutorials are worth reading once you're past the basics.

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