Marelux Apollo III 3.0 Strobe

Marelux Apollo III 3.0 Strobe - The New Benchmark in Underwater Strobes

The Marelux Apollo III 3.0 is the flagship model in the Marelux underwater strobe range, designed for demanding underwater photographers who need high output, fast recycling and flexible control.

The strobe delivers a powerful GN44 output with a wide 120° beam angle, providing broad and even illumination across the frame.

Despite its high output, the Apollo III 3.0 offers an impressive full-power recycle time of just 0.6 seconds.

MTL High-Speed Burst Mode

The dedicated MTL mode enables continuous shooting at up to 20 frames per second at GN22, with a recycle time of only 0.05 seconds.

This makes the Apollo III 3.0 particularly suitable for fast-moving subjects and situations where several exposures need to be captured in rapid succession.

PRE-M Mode

PRE-M mode is designed to solve pre-flash compatibility issues commonly encountered with compact cameras and other camera systems using a pre-flash.

It allows the strobe to deliver consistent and predictable output even when the camera uses a pre-flash sequence.

Extensive Flash Mode Compatibility

The Apollo III 3.0 provides a broad selection of operating modes through its dedicated mode dial:

• OFF
• TEST
• MANUAL
• TTL
• HSS
• RC
• PRE-M
• MTL

This makes the strobe compatible with a wide range of camera systems, shooting styles and triggering methods.

Powerful Video and Target Light

A built-in 3,000-lumen continuous light can be used both as a target light and as a compact video light.

The light offers:

• 3,000 lumens
• 95 CRI
• 5500K colour temperature

The high CRI provides accurate colour rendition, while the 5500K colour temperature closely matches natural daylight.

Fast and Intuitive Operation

The Apollo III 3.0 is designed for easy operation underwater.

A clear LCD display provides immediate information about the strobe settings, while large ergonomic dials and intuitive controls make adjustments easy even when wearing gloves.

High drain 18650 Batteries

Unlike many high-performance strobes using high drain battery packs, the Apollo III 3.0 is powered by three 18650 rechargeable high drain batteries.

This provides several practical advantages:

• Easy battery replacement
• Widely available battery format
• Lower long-term battery cost
• Simple handling when travelling

Wireless Triggering

The Apollo III 3.0 also supports encrypted wireless triggering with a range of up to 15 metres.

The encrypted communication system is designed to provide stable triggering without interference from other nearby systems.

Built for Professional Use

The strobe uses a triple flash-tube design combined with a beaded dome lens to create wide and even light distribution.

The flash tubes are tested for up to 1 million flashes, making the Apollo III 3.0 suitable for intensive and professional underwater photography.

Key Specifications

• Guide Number: GN44
• Beam Angle: 120°
• Full-Power Recycle Time: 0.6 sec.
• MTL Burst Mode: Up to 20 fps
• MTL Output: GN22
• MTL Recycle Time: 0.05 sec.
• Video/Target Light: 3,000 lumens
• CRI: 95
• Colour Temperature: 5500K
• Battery: 3 x standard 18650 rechargeable batteries
• Wireless Range: Up to 15 m
• Flash Modes: OFF, TEST, MANUAL, TTL, HSS, RC, PRE-M and MTL

About Marelux Guide Number Ratings

Marelux entered the underwater strobe market in 2024 and found significant differences between the published Guide Number ratings of several mainstream underwater strobes and the results obtained through its own measurements.

For this reason, Marelux uses a relative Guide Number measurement method.

Reference strobes are first measured using a Sekonic light meter at a fixed distance and compared with their published specifications. The Marelux Apollo strobe is then measured at exactly the same distance and under the same conditions.

The stated GN value for the Apollo III 3.0 is therefore intended to provide a meaningful comparison with established underwater strobes tested under identical conditions.