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GN28 Wireless Radio Control External Flash

HVL-F28RMA

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HVL-F28RMA
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Main characteristics

Made by Sony for stunning images

The HVL-F28RMA offers exceptional performance and stability with the α7 series0. It offers versatile features and detailed control plus the solid reliability needed for professional and advanced amateur applications in a compact, portable unit.
Product image of GN28 attached to ILCE-7RM5

An ideal GN280 flash for compact mirrorless cameras

The flash head and internal layout of the HVL-F28RMA have been redesigned for reduced size and greater portability, making it a perfect match for compact mirrorless cameras. Although it slips easily into a pocket, the HVL-F28RMA delivers output that rivals the high-end HVL-F45RM at the same illumination angle and can be effectively used for bounce lighting in a wide range of shooting situations.0
Usage image of someone holding a camera with a flash attached

High reliability and durability in a compact flash unit

Image of metal shoe foot with rugged side frame under the flash

Metal shoe foot with rugged side frame

The Multi Interface Shoe features a newly developed metal shoe foot with rugged side frame, significantly increasing strength and reliability.
Illustration of the internal structure of dust and moisture resistant of the flash

Dust and moisture resistant design

Like Sony’s high-end flash units, the HVL-F28RMA features a dust and moisture design that can withstand the rigours of professional work, even in challenging outdoor environments.
Product image of GN28 attached to ILCE-7M4

Effective overheating prevention

An optimized flash control algorithm provides excellent flash performance while effectively preventing overheating, for long-term stability and reliability.

Comprehensive control from the camera

Flash compensation, light ratio, and other detailed flash parameters can be controlled directly from a compatible camera0. A camera custom key can be assigned to call up the flash parameter display so that adjustments can be made while looking through the viewfinder and gripping the camera. Flash parameters are shown in the selected camera display language.
User Interface controlling a flash from a compatible camera

High-end features and control in a portable unit

Close-up image of the product’s back with light output level buttons

Direct output adjustment for quick operation

Dedicated light output level buttons (LEVEL -/+ buttons) directly control light output and flash compensation for fast, efficient operation. The light output of other wirelessly paired flash units can also be adjusted in this way for a smooth, stress-free workflow.
Example portrait image of a woman outside

Comprehensive flash features0

The HVL-F28RMA also includes the same high-speed sync, multi-flash, and other flash features as the HVL-45RM and HVL-60RM.

Radio wireless operation for versatile shooting

The HVL-F28RMA features stable radio wireless communication. One HVL-F28RMA that will function as a commander can be mounted on a compatible camera and paired with a second off-camera HVL-F28RMA unit that will function as a receiver. Radio communication provides reliable communication over longer distances than are possible with optical communication, even in bright sunlight or when there are obstacles between the camera and subject. When used as a flash commander the HVL-F28RMA can control up to 15 flash and/or receiver units in 5
groups at distances of up to 114 ft/35 m for extraordinary lighting control versatility.

Illustration explaining commander and receiver function pairing

Commander/Receiver function

[1] HVL-F28RMA (Commander)
[2] HVL-F28RMA (Receiver/off-camera flash)
Illustration showing up to 15 flash units in 5 groups can be controlled via wireless radio communication

Wireless control of up to 15 units in up to 5 groups0 1

Reliable off-camera control in any setting

Compatible off-camera flash units or receivers pick up radio signals—in bright light, around obstacles and even when installed behind the camera. That means more consistent results without pairing errors.

Example image of a woman in a forest with an umbrella

Reach deep into the composition

Example image of a woman wearing a white dress with a forest in the background

Reliable also in bright light

Example image of a woman in a white dress at night with trees in the background

Leap over subjects and obstacles

Camera/flash compatibility

Follow the link below for lens/body compatibility details.

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Guide number for GN28
[1] Flash coverage setting (35 mm format)  [2] Normal flash (1/1 power level)  [3] Hi-speed sync (HSS) (shutter speed: s)  [4] When the wide panel is attached

Guide Number

24 mm and 50 mm guide numbers are shown in the chart below.
Lighting system Lighting system

Lighting system

Lighting Tutorial

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