Fantasea

Fantasea Line — Underwater Camera Housings Built for the Way You Dive

Fantasea Line has been in the underwater photography business for close to forty years, founded by Howard Rosenstein — a Red Sea diving pioneer whose contributions to the sport earned him induction into the International Scuba Diving Hall of Fame in 2009 and the NOGI Award for Distinguished Service to the diving industry in 2026. The company he built with son Nadav Rosenstein focuses on a specific and demanding challenge: making professional-quality underwater camera housings that are genuinely affordable, genuinely durable, and genuinely easy to use.

The Fantasea approach to housings is deliberately selective. Rather than producing housings for every camera on the market, Fantasea carefully chooses specific camera models — primarily the most popular compact and mirrorless systems from Canon and Sony — and designs housings that fit them precisely and ergonomically. The result is a product that the diver doesn't have to fight with underwater. Controls are where your hands naturally go. The housing doesn't feel like it was adapted from a generic template. This combination of precision fit and strict quality control has made Fantasea one of the most trusted names in underwater photography housings for compact and mirrorless cameras.

At DiveCatalog.com, we carry Fantasea Line housings, port systems, lenses, and accessories as an authorized dealer.

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The Fantasea Product Range

Point-and-Shoot & Compact Camera Housings

Fantasea's compact camera housings cover the Canon PowerShot G-series and Sony RX100 series — two of the most popular compact cameras in underwater photography. The FG9X is purpose-built for the Canon PowerShot G9 X and G9 X Mark II. The FRX100 VI Limited Edition is designed specifically for the Sony RX100 VI and VII in their 24–66mm zoom configuration — featuring a stylish and ergonomic design that reflects exactly how the RX100 is used underwater. All Fantasea compact housings are polycarbonate construction with 60-meter (200-foot) depth ratings.

Mirrorless Camera Housings

For Sony mirrorless systems, Fantasea produces the FA6000, FA6400, and FA6500 V2 housings, designed specifically for the Sony a6000, a6400, a6300, and a6500 cameras respectively. These housings feature the Fantasea Hybrid Vacuum Safety System — a dual-layer protection that combines a pre-dive vacuum check (verifying O-ring integrity before you enter the water) with an in-dive continuous leak detector that alerts you if any moisture enters the housing while you're underwater. This system addresses the two most common points of failure in housing dives: undetected pre-dive seal compromise, and slow ingress during the dive itself.

FML Port System

The Fantasea FML (Fantasea Mount Lens) port system allows Sony mirrorless housing users to configure their setup for different lenses. The FML Flat Port 34 is Fantasea's primary flat port for standard lenses; the FML Port Extension 25 adds 25mm of length for longer lenses that require additional clearance. Lens Gears for the Sony SELP1650 (16–50mm power zoom) and SEL30M35 (30mm macro) allow manual zoom and focus control of compatible lenses from outside the housing — essential for underwater video and macro photography where lens control during the dive is necessary.

Wet Lenses and Optics

The BigEye Lens F Series is Fantasea's patented wide-angle conversion lens for their F-series housings (FG7XII, FG7X, FG16, FG15, FP7100, FP7000). It fits directly over the housing's existing lens port and can be installed and removed during the dive without surfacing. The wider field of view it provides allows closer approach to larger subjects — reducing the water column between camera and subject for cleaner, more color-saturated images. The BigEye Lens Kit M55 provides the same wide-angle benefit in a 55mm thread format for universal housing use.

Accessories

The FA1 Moisture Detector is a standalone moisture alarm that can be installed inside any housing with sufficient internal space — providing an early warning system for any housing regardless of brand. The EyeGrabber F55 is a lens holder that secures 55mm accessory lenses and filters when not in use during a dive, preventing them from floating away or getting lost.

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The Fantasea Hybrid Vacuum Safety System

This is the standout engineering feature on Fantasea's mirrorless housings. A typical housing provides no indication of whether its O-ring seal is properly seated until water is already entering — by which point expensive camera damage may be underway. The Fantasea Hybrid Vacuum Safety System works in two phases:

Pre-dive vacuum check: Before entering the water, you extract air from the housing using the built-in pump to create a partial vacuum. If the housing holds vacuum, the O-rings are correctly seated and the housing is sealed. If it doesn't hold vacuum, there's a leak — which you want to discover on the boat, not at 15 meters.

In-dive leak detection: Once underwater, the system continuously monitors internal humidity. If any moisture enters the housing — even a small amount — an alarm triggers through the housing's audible or visual indicator, giving you time to surface and address the issue before significant water ingress occurs.

Together these two systems mean the critical failure points of housing diving — pre-dive seal failure and slow in-dive ingress — are addressed before they become camera-damaging incidents.

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Who Are Fantasea Housings For?

Diver / Photographer Type	Recommended Fantasea Product	Key Reason
Compact camera divers (Canon G9X)	FG9X Housing	Precision fit; polycarbonate; 60m depth; ergonomic controls
Sony RX100 VI/VII users	FRX100 VI Limited Edition	Designed specifically for 24–66mm zoom configuration
Sony a6400 mirrorless users	FA6400 or FA6400 Kit A	Hybrid Vacuum Safety System; FML port system; full lens control options
Sony a6300/a6500 mirrorless users	FA6500 V2 or FA6500 V2 Kit A	Vacuum safety system; purpose-built fit; port extension options
Wide-angle photographers	BigEye Lens F Series or M55	Wide-angle conversion; installable/removable during dive
Divers wanting housing safety backup	FA1 Moisture Detector	Fits any housing; independent moisture alarm for early warning

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Why Buy Fantasea from DiveCatalog.com?

• Authorized Fantasea Line dealer — genuine products, full manufacturer warranty
• Expert compatibility advice — our team can confirm the right housing for your specific camera model and lens configuration
• Port system components available — FML ports, extensions, and lens gears for mirrorless setups
• Fast shipping — in-stock items ship within one business day
• Rewards program — earn points on every purchase

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Frequently Asked Questions — Fantasea Line

What cameras does Fantasea make housings for?

Fantasea focuses on specific popular compact and mirrorless camera models from Canon and Sony — primarily the Canon PowerShot G-series and Sony RX100 series (compact) and Sony a6000/a6300/a6400/a6500 (mirrorless). They deliberately do not produce housings for every camera, choosing instead to produce perfectly fitted housings for the models they support. Check the individual product listing to confirm compatibility with your specific camera model.

What depth rating do Fantasea housings have?

All current Fantasea housings are rated to 60 meters / 200 feet — appropriate for recreational diving to the maximum sport diving depth and well beyond most recreational diving conditions.

What is the Hybrid Vacuum Safety System?

A two-stage protection system on Fantasea mirrorless housings. Pre-dive, you use the built-in pump to create a partial vacuum inside the housing — if it holds, the O-rings are correctly seated. In-dive, the system continuously monitors internal humidity and alarms if moisture enters. This addresses both undetected seal failure before the dive and slow ingress during the dive.

What is the FML port system?

The FML (Fantasea Mount Lens) system is Fantasea's modular port interface for their Sony mirrorless housings. It allows different ports (flat port, dome port) and extensions to be combined with lens gears for specific lens configurations. The system accommodates different lenses on the same housing body without replacing the entire housing.

Can I install and remove the BigEye lens during the dive?

Yes. The BigEye lens is specifically designed to be installed over the housing's existing lens port and removed during the course of the dive without surfacing — useful for shots where you want wide-angle for the environment but standard lens for close-up subjects on the same dive.

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Fantasea Line has earned forty years of trust by building housings that fit precisely, protect reliably, and work intuitively underwater. Browse the full Fantasea collection above and reach out if you'd like help identifying the right housing and port configuration for your camera.